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Pantomax is a selective “proton pump inhibitor”, a medicine which reduces the amount of acid produced in your stomach. It is used for treating acid-related diseases of the stomach and intestine.
Pantomax is used for treat:
Adults and adolescents 12 years of age and above :
- Reflux oesophagitis. An inflammation of your oesophagus (the tube which connects your throat to your stomach) accompanied by the regurgitation of stomach acid.
- An infection with a bacterium called Helicobacter pylori in patients with duodenal ulcers and stomach ulcers in combination with two antibiotics (Eradication therapy). The aim is to get rid of the bacteria and so reduce the likelihood of these ulcers returning.
- Stomach and duodenal ulcers.
Zollinger-Ellison-Syndrome and other conditions producing too much acid in the stomach.
Do not take Pantomax®
- If you are allergic (hypersensitive) to Pantoprazole or to any of the other ingredients of Pantomax (see section 6).
- If you are allergic to medicines containing other proton pump inhibitors.
Take special care with Pantomax®
- If you have severe liver problems. Please tell your doctor if you have ever had problems with your liver. He will check your liver enzymes more frequently, especially when you are taking Pantomax as a long-term treatment. In the case of a rise of liver enzymes the treatment should be stopped.
- If you need to take medicines called NSAIDs continuously and receive Pantomax because you have an increased risk of developing stomach and intestinal complications. Any increased risk will be assessed according to your own personal risk factors such as your age (65 years old or more), a history of stomach or duodenal ulcers or of stomach or intestinal bleeding.
- If you have reduced body stores or risk factors for reduced vitamin B12 and receive long-term treatment with Pantoprazole. As with all acid reducing agents, Pantoprazole may lead to a reduced absorption of vitamin B12.
- If you are taking a medicine containing Atazanavir (for the treatment of HIV-infection) at the same time as Pantoprazole, ask your doctor for specific advice.
Tell your doctor immediately if you notice any of the following symptoms:
- An unintentional loss of weight
- repeated vomiting
- Difficulty in swallowing
- vomiting blood
- You look pale and feel weak (Anaemia)
- You notice blood in your stools
- Severe and/or persistent diarrhoea, as Pantomax has been associated with a small increase in infectious diarrhoea.
Your doctor may decide that you need some tests to rule out malignant disease because Pantoprazole also alleviates the symptoms of cancer and could cause delay in diagnosing it. If your symptoms continue in spite of your treatment, further investigations will be considered.
If you take Pantomax on a long-term basis (longer than 1 year) your doctor will probably keep you under regular surveillance. You should report any new and exceptional symptoms and circumstances whenever you see your doctor.
Taking other medicines
Pantomax may influence the effectiveness of other medicines, so tell your doctor if you are taking
- Medicines such as Ketoconazole, Itraconazole and Posaconazole (used to treat fungal infections) or Erlotinib (used for certain types of cancer) because Pantomax may stop these and other medicines from working properly.
- Warfarin and Phenprocoumon, which affect the thickening, or thinning of the blood. You may need further checks.
- Atazanavir (used to treat HIV-infection).
Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without a prescription.
Pregnancy and breast-feeding
There are no adequate data from the use of Pantoprazole in pregnant women. Excretion into human milk has been reported. If you are pregnant, or think you may be pregnant, or if you are breast-feeding, you should use this medicine, only if your doctor considers the benefit for you greater than the potential risk for your unborn child or baby.
Ask your doctor or pharmacist for advice before taking any medicine.
Driving and using machines
If you experience side effects like dizziness or disturbed vision, you should not drive or operate machines
Always take Pantomax exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.
When and how should you take Pantomax?
Take the tablets 1 hour before a meal without chewing or breaking them and swallow them whole with some water. Unless told otherwise by your doctor
For Adults and adolescents 12 years of age and above to treat reflux oesophagitis
The usual dose is one tablet a day. Your doctor may tell you to increase to 2 tablets daily. The treatment period for reflux oesophagitis is usually between 4 and 8 weeks. Your doctor will tell you how long to take your medicine.
Adults:
• For the treatment of an infection with a bacterium called Helicobacter pylori in patients with duodenal ulcers and stomach ulcers in combination with two antibiotics (Eradication therapy).
One tablet, two times a day plus two antibiotic tablets of either Amoxicillin, Clarithromycin and Metronidazole (or Tinidazole), each to be taken two times a day with your Pantoprazole tablet. Take the first Pantoprazole tablet 1 hour before breakfast and the second Pantoprazole tablet 1 hour before your evening meal. Follow your doctor's instructions and make sure you read the package leaflets for these antibiotics. The usual treatment period is one to two weeks.
• For the treatment of stomach and duodenal ulcers.
The usual dose is one tablet a day. After consultation with your doctor, the dose may be doubled. Your doctor will tell you how long to take your medicine. The treatment period for stomach ulcers is usually between 4 and 8 weeks. The treatment period for duodenal ulcers is usually between 2 and 4 weeks.
• For the long-term treatment of Zollinger-Ellison-Syndrome and of other conditions in which too much stomach acid is produced.
The recommended starting dose is usually two tablets a day.
Take the two tablets 1 hour before a meal. Your doctor may later adjust the dose, depending on the amount of stomach acid you produce. If prescribed more than two tablets a day, the tablets should be taken twice daily.
If your doctor prescribes a daily dose of more than four tablets a day, you will be told exactly when to stop taking the medicine.
Special patient groups:
-If you have kidney problems, moderate or severe liver problems, you should not take Pantomax for eradication of Helicobacter pylori.
-If you suffer from severe liver problems, you should not take more than one tablet 20 mg Pantoprazole a day (for this purpose tablets containing 20 mg Pantoprazole are available).
Children below 12 years.
These tablets are not recommended for use in children below 12 years.
If you take more Pantomax than you should
Tell your doctor or pharmacist. There are no known symptoms of overdose.
If you forget to take Pantomax
Do not take a double dose to make up for the forgotten dose. Take your next normal dose at the usual time.
If you stop taking Pantomax
Do not stop taking these tablets without first talking to your doctor or pharmacist.
If you have any further questions about the use of this product, ask your doctor or pharmacist.
Like all medicines, Pantomax can cause side effects, although not everybody gets them.
The frequency of possible side effects listed below is defined using the following convention:
very common (affects more than 1 user in 10)
common (affects 1 to 10 users in 100)
uncommon (affects 1 to 10 users in 1,000)
rare (affects 1 to 10 users in 10,000)
very rare (affects less than 1 user in 10,000)
not known (frequency cannot be estimated from the available data)
If you get any of the following side effects, stop taking these tablets and tell your doctor immediately, or contact the casualty department at your nearest hospital:
- Serious allergic reactions (frequency rare): swelling of the tongue and/or throat, difficulty in swallowing, hives (nettle rash), difficulties in breathing, allergic facial swelling (Quincke's oedema / angioedema), severe dizziness with very fast heartbeat and heavy sweating.
- Serious skin conditions (frequency not known): blistering of the skin and rapid deterioration of your general condition, erosion (including slight bleeding) of eyes, nose, mouth/lips or genitals (Stevens-Johnson-Syndrome, Lyell-Syndrome, Erythema multiforme), and sensitivity to light.
- Other serious conditions (frequency not known): yellowing of the skin or whites of the eyes (severe damage to liver cells, jaundice) or fever, rash, and enlarged kidneys sometimes with painful urination, and lower back pain (serious inflammation of the kidneys).
Other side effects are:
- Uncommon (affects 1 to 10 users in 1,000)
headache, dizziness, diarrhoea, feeling sick, vomiting, bloating and flatulence (wind), constipation, dry mouth, abdominal pain and discomfort, skin rash, exanthema, eruption, itching, feeling weak, exhausted or generally unwell, sleep disorders.
Taking a proton pump inhibitor like Pantoprazole, especially over a period of more than one year, may slightly increase your risk of fracture in the hip, wrist or spine. Tell your doctor if you have osteoporosis or if you are taking corticosteroids (which can increase the risk of osteoporosis).
- Rare (affects 1 to 10 users in 10,000)
distortion or complete lack of the sense of taste, disturbances in vision such as blurred vision, hives, pain in the joints, muscle pains, weight changes, raised body temperature, high fever, swelling of the extremities (peripheral oedema), allergic reactions, depression, breast enlargement in males.
- Very Rare (affects less than 1 user in 10,000) disorientation.
- Not known (frequency cannot be estimated from the available data) Hallucination, confusion (especially in patients with a history of these symptoms), decreased sodium level in blood. If you are on Pantomax for more than three months it is possible that the levels of magnesium in your blood may fall. Low levels of magnesium can be seen as fatigue, involuntary muscle contractions, disorientation, convulsions, dizziness, increased heart rate. If you get any of these symptoms, please tell your doctor promptly. Low levels of magnesium can also lead to a reduction in potassium or calcium levels in the blood. Your doctor may decide to perform regular blood tests to monitor your levels of magnesium. Side effects identified through blood tests:
- Uncommon (affects 1 to 10 users in 1,000) an increase in liver enzymes.
- Rare (affects 1 to 10 users in 10,000)
an increase in bilirubin, increased fat levels in blood, sharp drop in circulating granular white blood cells, associated with high fever.
- Very Rare (affects less than 1 user in 10,000) a reduction in the number of blood platelets, which may cause you to bleed or bruise more than normal, a reduction in the number of white blood cells, which may lead to more frequent infections, coexisting abnormal reduction in the number of red and white blood cells, as well as platelets.
If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.
Keep out of the reach and sight of children.
Store below 30°C.
Do not use Pantomax after the expiry date which is stated on the blister and carton after EXP. The expiry date refers to the last day of that month.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.
The active substance is Pantoprazole. Each gastro-resistant tablet contains 40 mg of pantoprazole (as sodium sesquihydrate).
The other ingredients are:
Sodium carbonate (anhydrous), mannitol, crospovidone, povidone K90, calcium stearate, hypromellose, Opadry white, Acryl Eze Yellow
SAJA Pharmaceuticals
Saudi Arabian Japanese pharmaceutical company limited Jeddah - Saudi Arabia
- التهاب المرئ الارتجاعي : هو التهاب المرئ )الأنبوب الذي يربط بين الحلق و المعدة( المصحوب بارتجاع أحماض المعدة .
- عدوى ببكتريا تُسمى المَلَوِيُّة البَوّابية في المرضى المصابين بقُرح الإثنا عشر و قرح المعدة بالتناول المتزامن مع اثنين من المضادات الحيوية ( علاج للقضاء على البكتريا ) . الهدف من ذلك هو التخلص من البكتريا وكذلك الحد من احتمالية عودة هذه القُرح .
- قُرح المعدة والإثنا عشر .
- متلازمة زولينجَر إيليسون و الحالات الأخرى التي تتسبب في إفراز كمية كبيرة جدًا من الأحماض في المعدة
لا تتناول بانتوماكس
- إذا كنت تعاني من حساسية ( فرط الحساسية ) تجاه بانتوبرازول أو ايِ من المكونات الأخرى لبانتوماكس (انظر القسم 6 ).
- إذا كنت تعاني من حساسية تجاه أدوية تحتوي على مثبطات أخرى لمضخة البروتون .
توخَ حذرًا خاصًا مع بانتوماكس
- إذا كان لديك مشاكل شديدة في الكبد . يُرجى إخبار طبيبك إذا كنت قد عانيت من قبل من مشاكل في الكبد . سيفحص طبيبك إنزيمات الكبد لديك بشكل أكثر تكرارًا , خاصًة عند تناولك بانتوماكس كعلاج طويل المدى . يجب وقف العلاج في حالة ارتفاع مستويات إنزيمات الكبد .
- إذا كنت بحاجة لتناول أدوية تُسمى مضادات الالتهاب غير الستيرويدية (NSAIDs) بشكل مستمر وتتناول بانتوماكس فإن ذلك قد يزيد من مخاطر حدوث مضاعفات المعدة و الأمعاء .سيتم تقييم أي مخاطر متزايدة وفقًا لعوامل الخطر الخاصة بك مثل عُمرك ( 65 سنة أو أكثر ) , وجود تاريخ مرضي من قُرح المعدة و الإثنا عشر أو نزيف بالمعدة أو الأمعاء .
- إذا كانت مخزونات الجسم لديك منخفضة أو لديك عوامل خطر لانخفاض مستويات فيتامين ب12 و تتلقى علاجًا طويل المدى باستخدام بانتوبرازول . كما هو الحال مع جميع الأدوية الخافضة للأحماض , قد يؤدي بانتوبرازول إلى امتصاص فيتامين ب12 .
- فقدان وزن غير مُتعمد
- قئ متكرر
- صعوبة في البلع
- قئ دموي ( قئ مصحوب بدم )
- الشحوب والشعور بالضعف ( فقر الدم )
- ملاحظة وجود دم لديك في البراز
- أدوية مثل كيتوكونازول , و ايتراكونازول , و بوساكونازول ( تُستخدم لعلاج العدوى الفطرية ) أو إرلوتينيب ( يُستخدم لعلاج بعض أنواع السرطان ) حيث قد يوقف بانتوماكس هذه الأدوية و أدوية أخرى عن العمل بشكل مناسب .
- وارفارين و فينبروكومون , اللذان يؤثران على زيادة لزوجة , أو سيولة الدم . لذلك قد تحتاج لبعض الفحوصات الإضافية .
تناول بانتوماكس دائمًا كما أخبرك طيبك بالضبط . إذا لم تكن متأكدًا , فيجب عليك مراجعة الطبيب أو الصيدلي الخاص بك .
متي و كيف يجب تناول بانتوماكس
للبالغون و المراهقون ممن تزيد أعمارهم عن 12 سنة لعلاج التهاب المرئ الارتجاعي
الجرعة المعتادة هي قرص واحد في اليوم . قد يخبرك طبيبك بزيادة الجرعة إلى قرصين يوميًا . عادة ما تكون فترة العلاج من التهاب المرئ الارتجاعي بين 4 و 8 أسابيع . سيخبرك طبيبك بالمدة اللازمة لتناوُل الدواء .
البالغون :
● للعلاج من عدوى بكتريا تُسمى المَلْويَة البَوَابية في المرضى الذين يُعانون من قُرح الإثنا عشر و المعدة بالتزامن مع اثنين من المضادات الحيوية ( علاج للقضاء على البكتريا )
● لعلاج قُرح المعدة و الإثنا عشر .
● للعلاج طويل المدى من متلازمة زولينجَر ايليسون و الحالات الإخرى التي تسبب إفراز كمية كبيرة جدًا من الأحماض في المعدة .
- إذا كنت تعاني من مشاكل في الكلى , أو أي مشاكل معتدلة إلى شديدة في الكبد فيجب ألا تتناول بانتوماكس للقضاء على بكتريا المَلَوِيّة البوّابية .
- إذا كنت تعاني من مشاكل شديدة في الكبد , فيجب عليك عدم تناول أكثر من قرص واحد من بانتوبرازول 20 ملج في اليوم ( لهذا السبب تتوافر اقراص تحتوي على 20 ملج بانتوبرازول ).
- الأطفال الاقل من 12 سنة : لا يُوصى باسخدام هذه الأقراص في الأطفال أقل من 12 سنة .
- تفاعلات حساسية خطيرة ( نادرة التكرار ) : تَوَرُم اللسان و \ أو الحلق , و صعوبة في البلع , وشري ( طفح القراص ) , و صعوبات في التنفس , وتَوَرُم الوجه التحسسي ( وذمة كونيك \ وذمة وعائية ) , و دوخة شديدة مع ضربات قلب سريعة جدًا و تعرق شديد .
- غير شائعة ( تؤثر على من 1 إلى 10 من كل 1000 مستخدم ) زيادة مستويات إنزيمات الكبد .
- نادرة جدًا ( تؤثر على أقل من 1 من كل 10000 مستخدم ) انخفاض في عدد الصفائح الدموية , قد يسبب الإصابة بنزيف أو كدمات بشكل أكثر من المعتاد . انخفاض في عدد خلايا الدم البيضاء , قد يؤدي إلى الإصابة بالعدوى بشكل أكثر تكرارًا , انخفاض مصاحب و غير طبيعي في عدد خلايا الدم الحمراء و البيضاء, كذلك عدد الصفائح الدموية .
- إذا أصبح أيِ من الأعراض الجانبية خطيرًا , أو إذا لاحظت أي أعراض جانبية غير المدرجة في هذه النشرة , يُرجى إبلاغ الطبيب أو الصيدلي الخاص بك .
يُحفظ بعيدًا عن متناول الأطفال
يُحفظ في درجة حررة أقل من 30 درجة مئوية
لا يستخدم بانتوماكس بعد انتهاء تاريخ الصلاحية المدون على الشريط و العبوة الكرتونية بعد كلمة " EXP " . يشير تاريخ انتهاء الصلاحية إلى اليوم الأخير من ذلك الشهر
يجب عدم التخلص من الأدوية عن طريق مياه الصرف الصحي أو مع المخلفات المنزلية . اسأل الصيدلي الخاص بك عن كيفية التخلص من الأدوية التي لم تعد بحاجة إليها . ستساعد هذه الإجراءات في حماية البيئة .
● المادة الفعالة هي : بانتوبرازول . يحتوي كل قرص مقاوم للمعدة على 20 ملج بانتوبرازول ( على هيئة صوديوم سيسكويهيدرات ) .
● المكونات الأخرى هي : كربونات صوديوم ( لا مائية ) , وكروسبوفيدون , بوفيدون ك90 و ستيرات كالسيوم , هايبروميلوز , أوبادراي ابيض , اكرايل يز اصفر .
مصنع ساجا للصناعات الدوائية
الشركة السعودية اليابانية للمنتجات الصيدلانية المحدودة
جدة- المملكة العربية السعودية .
Moderate & sever cases of inflammation of the esophagus (Reflux oesophagitis).
- Eradication of Helicobacter pylori (H. pylori) in combination with appropriate
antibiotic therapy in patients with H. pylori associated ulcers.
- Gastric and duodenal ulcer
Tablets should not be chewed or crushed, and should be swallowed whole 1 hour before a
meal with some water.
Recommended dose
Reflux oesophagitis
One tablet of Pantomax per day. In individual cases the dose may be doubled (increase to 2
tablets Pantomax daily) especially when there has been no response to other treatment. A
4-week period is usually required for the treatment of reflux oesophagitis. If this is not
sufficient, healing will usually be achieved within a further 4 weeks.
Adults
Eradication of H. pylori in combination with two appropriate antibiotics
In H. pylori positive patients with gastric and duodenal ulcers, eradication of the germ by a
combination therapy should be achieved. Considerations should be given to official local
guidance (e.g. national recommendations) regarding bacterial resistance and the
appropriate use and prescription of antibacterial agents. Depending upon the resistance
pattern, the following combinations can be recommended for the eradication of H. pylori:
a) twice daily one tablet Pantomax
+ twice daily 1000 mg amoxicillin
+ twice daily 500 mg clarithromycin
b) twice daily one tablet Pantomax
+ twice daily 400 - 500 mg metronidazole (or 500 mg tinidazole)
+ twice daily 250 - 500 mg clarithromycin
c) twice daily one tablet Pantomax
+ twice daily 1000 mg amoxicillin
+ twice daily 400 - 500 mg metronidazole (or 500 mg tinidazole)
In combination therapy for eradication of H. pylori infection, the second Pantomax tablet
should be taken 1 hour before the evening meal. The combination therapy is implemented
for 7 days in general and can be prolonged for a further 7 days to a total duration of up to
two weeks. If, to ensure healing of the ulcers, further treatment with pantoprazole is
indicated, the dose recommendations for duodenal and gastric ulcers should be considered.
If combination therapy is not an option, e.g. if the patient has tested negative for H. pylori,
the following dose guidelines apply for Pantomax monotherapy:
Treatment of gastric ulcer
One tablet of Pantomax per day. In individual cases the dose may be doubled (increase to 2
tablets Pantomax daily) especially when there has been no response to other treatment. A
4-week period is usually required for the treatment of gastric ulcers. If this is not sufficient,
healing will usually be achieved within a further 4 weeks.
Treatment of duodenal ulcer
One tablet of Pantomax per day. In individual cases the dose may be doubled (increase to 2
tablets Pantomax daily) especially when there has been no response to other treatment. A
duodenal ulcer generally heals within 2 weeks. If a 2-week period of treatment is not
sufficient, healing will be achieved in almost all cases within a further 2 weeks.
Special populations
Children below 12 years of age
Pantomax is not recommended for use in children below 12 years of age due to limited data
on safety and efficacy in this age group.
Hepatic Impairment
A daily dose of 20 mg pantoprazole (1 tablet of 20 mg pantoprazole) should not be exceeded
in patients with severe liver impairment. Pantomax must not be used in combination
treatment for eradication of H. pylori in patients with moderate to severe hepatic
dysfunction since currently no data are available on the efficacy and safety of Pantomax in
combination treatment of these patients (see section 4.4).
Renal Impairment
No dose adjustment is necessary in patients with impaired renal function. Pantomax must
not be used in combination treatment for eradication of H. pylori in patients with impaired
renal function since currently no data are available on the efficacy and safety of Pantomax in
combination treatment for these patients.
Elderly
No dose adjustment is necessary in elderly patients.
Hepatic Impairment
In patients with severe liver impairment the liver enzymes should be monitored regularly
during treatment with pantoprazole, particularly on long-term use. In the case of a rise of
the liver enzymes the treatment should be discontinued (see section 4.2).
Co-administration with NSAIDs
The use of Pantomax 20 mg as a preventive of gastroduodenal ulcers induced by nonselective non-steroidal anti-inflammatory drugs (NSAIDs) should be restricted to patients
who require continued NSAID treatment and have an increased risk to develop
gastrointestinal complications. The increased risk should be assessed according to individual
risk factors, e.g. high age (>65 years), history of gastric or duodenal ulcer or upper
gastrointestinal bleeding.
In presence of alarm symptoms
In the presence of any alarm symptom (e. g. significant unintentional weight loss, recurrent
vomiting, dysphagia, haematemesis, anaemia or melaena) and when gastric ulcer is
suspected or present, malignancy should be excluded, as treatment with pantoprazole may
alleviate symptoms and delay diagnosis.
Further investigation is to be considered if symptoms persist despite adequate treatment.
Co-administration with atazanavir
Co-administration of atazanavir with proton pump inhibitors is not recommended (see
section 4.5). If the combination of atazanavir with a proton pump inhibitor is judged
unavoidable, close clinical monitoring (e.g virus load) is recommended in combination with
an increase in the dose of atazanavir to 400 mg with 100 mg of ritonavir. A pantoprazole
dose of 20 mg per day should not be exceeded.
Influence on vitamin B12 absorption
Pantoprazole, as all acid-blocking medicines, may reduce the absorption of vitamin B12
(cyanocobalamin) due to hypo- or achlorhydria. This should be considered in patients with
reduced body stores or risk factors for reduced vitamin B12 absorption on long-term therapy
or if respective clinical symptoms are observed.
Long term treatment
In long-term treatment, especially when exceeding a treatment period of 1 year, patients
should be kept under regular surveillance.
Gastrointestinal infections caused by bacteria
Pantoprazole, like all proton pump inhibitors (PPIs), might be expected to increase the
counts of bacteria normally present in the upper gastrointestinal tract. Treatment with
Pantomax may lead to a slightly increased risk of gastrointestinal infections caused by
bacteria such as Salmonella and Campylobacter.
Effect of pantoprazole on the absorption of other medicinal products
Because of profound and long lasting inhibition of gastric acid secretion, pantoprazole may
reduce the absorption of drugs with a gastric pH dependent bioavailability, e.g some azole
antifungals as ketoconazole, itraconazole, posaconazole and other medicine as erlotinib.
HIV medications (atazanavir)
Co-administration of atazanavir and other HIV medications whose absorption is pHdependent with proton-pump inhibitors, might result in a substantial reduction in the
bioavailability of these HIV medications and might impact the efficacy of these medicines.
Therefore, the co-administration of proton pump inhibitors with atazanavir is not
recommended (see section 4.4).
Coumarin anticoagulants (phenprocoumon or warfarin)
Although no interaction during concomitant administration of phenprocoumon or warfarin
has been observed in clinical pharmacokinetic studies, a few isolated cases of changes in
International Normalised Ratio (INR) have been reported during concomitant treatment in
the post-marketing period. Therefore, in patients treated with coumarin anticoagulants (e.g.
phenprocoumon or warfarin), monitoring of prothrombin time / INR is recommended after
initiation, termination or during irregular use of pantoprazole.
Other interactions studies
Pantoprazole is extensively metabolized in the liver via the cytochrome P450 enzyme
system. The main metabolic pathway is demethylation by CYP2C19 and other metabolic
pathways include oxidation by CYP3A4.
Interaction studies with drugs also metabolized with these pathways, like carbamazepine,
diazepam, glibenclamide, nifedipine, and an oral contraceptive containing levonorgestrel
and ethinyl oestradiol, did not reveal clinically significant interactions.
Results from a range of interaction studies demonstrate that pantoprazole does not effect
the metabolism of active substances metabolised by CYP1A2 (such as caffeine, theophylline),
CYP2C9 (such as piroxicam, diclofenac, naproxen), CYP2D6 (such as metoprolol), CYP2E1
(such as ethanol), or does not interfere with p-glycoprotein related absorption of digoxin.
There were no interactions with concomitantly administered antacids.
Interaction studies have also been performed by concomitantly administering pantoprazole
with the respective antibiotics (clarithromycin, metronidazole, amoxicillin). No clinically
relevant interactions were found.
Pregnancy
There are no adequate data from the use of pantoprazole in pregnant women. Studies in
animals have shown reproductive toxicity (see section 5.3). The potential risk for humans is
unknown. Pantomax should not be used during pregnancy, unless clearly necessary.
Lactation
Animal studies have shown excretion of pantoprazole in breast milk. Excretion into human
milk has been reported. Therefore, a decision on whether to continue/discontinue breastfeeding or to continue/discontinue therapy with Pantomax should be made taking into
account the benefit of breast-feeding to the child, and the benefit of Pantomax therapy to
women.
Adverse drug reactions, such as dizziness and visual disturbances may occur (see section
4.8). If affected, patients should not drive or operate machines.
Approximately 5 % of patients can be expected to experience adverse drug reactions (ADRs).
The most commonly reported ADRs are diarrhoea and headache, both occurring in
approximately 1 % of patients.
The table below lists adverse reactions reported with pantoprazole, ranked under the
following frequency classification:
Very common ( 1/10); common ( 1/100 to <1/10); uncommon ( 1/1,000 to <1/100);
rare ( 1/10,000 to <1/1,000); very rare (<1/10,000), not known (cannot be estimated from
the available data).
For all adverse reactions reported from post-marketing experience, it is not possible to apply
any Adverse Reaction frequency and therefore they are mentioned with a “not known”
frequency.
Within each frequency grouping, adverse reactions are presented in order of decreasing
seriousness.
Table 1. Adverse reactions with pantoprazole in clinical trials and post-marketing experience
There are no known symptoms of overdose in man.
Systemic exposure with up to 240 mg administered intravenously over 2 minutes, were well
tolerated.
As pantoprazole is extensively protein bound, it is not readily dialysable.
In the case of an overdose with clinical signs of intoxication, apart from symptomatic and
supportive treatment, no specific therapeutic recommendations can be made.
Pharmacotherapeutic group: Proton pump inhibitors, ATC code: A02BC02
Mechanism of action
Pantoprazole is a substituted benzimidazole which inhibits the secretion of hydrochloric acid
in the stomach by specific blockade of the proton pumps of the parietal cells.
Pantoprazole is converted to its active form in the acidic environment in the parietal cells
where it inhibits the H+, K+-ATPase enzyme, i. e. the final stage in the production of
hydrochloric acid in the stomach. The inhibition is dose-dependent and affects both basal
and stimulated acid secretion. In most patients, freedom from symptoms is achieved within
2 weeks. As with other proton pump inhibitors and H2 receptor inhibitors, treatment with
pantoprazole reduces acidity in the stomach and thereby increases gastrin in proportion to
the reduction in acidity. The increase in gastrin is reversible. Since pantoprazole binds to the
enzyme distal to the cell receptor level, it can inhibit hydrochloric acid secretion
independently of stimulation by other substances (acetylcholine, histamine, gastrin). The
effect is the same whether the product is given orally or intravenously.
The fasting gastrin values increase under pantoprazole. On short-term use, in most cases
they do not exceed the upper limit of normal. During long-term treatment, gastrin levels
double in most cases. An excessive increase, however, occurs only in isolated cases. As a
result, a mild to moderate increase in the number of specific endocrine (ECL) cells in the
stomach is observed in a minority of cases during long-term treatment (simple to
adenomatoid hyperplasia). However, according to the studies conducted so far, the
formation of carcinoid precursors (atypical hyperplasia) or gastric carcinoids as were found
in animal experiments (see section 5.3) have not been observed in humans.
An influence of a long term treatment with pantoprazole exceeding one year cannot be
completely ruled out on endocrine parameters of the thyroid according to results in animal
studies.
Absorption
Pantoprazole is rapidly absorbed and the maximal plasma concentration is achieved even
after one single 20 mg oral dose. On average at about 2.0 h - 2.5 h p.a. the maximum serum
concentrations of about 1-1.5 µg/ml are achieved, and these values remain constant after
multiple administration. Pharmacokinetics does not vary after single or repeated
administration. In the dose range of 10 to 80 mg, the plasma kinetics of pantoprazole is
linear after both oral and intravenous administration.
The absolute bioavailability from the tablet was found to be about 77 %. Concomitant intake
of food had no influence on AUC, maximum serum concentration and thus bioavailability.
Only the variability of the lag-time will be increased by concomitant food intake.
Distribution
Pantoprazole's serum protein binding is about 98 %. Volume of distribution is about 0.15
l/kg.
Elimination
The substance is almost exclusively metabolized in the liver. The main metabolic pathway is
demethylation by CYP2C19 with subsequent sulphate conjugation, other metabolic pathway
includes oxidation by CYP3A4. Terminal half-life is about 1 hour and clearance is about 0.1
l/h/kg. There were a few cases of subjects with delayed elimination. Because of the specific
binding of pantoprazole to the proton pumps of the parietal cell the elimination half-life
does not correlate with the much longer duration of action (inhibition of acid secretion).
Renal elimination represents the major route of excretion (about 80 %) for the metabolites
of pantoprazole, the rest is excreted with the faeces. The main metabolite in both the serum
and urine is desmethylpantoprazole which is conjugated with sulphate. The half-life of the
main metabolite (about 1.5 hours) is not much longer than that of pantoprazole.
Characteristics in patients/special groups of subjects
Approximately 3 % of the European population lack a functional CYP2C19 enzyme and are
called poor metabolisers. In these individuals the metabolism of pantoprazole is probably
mainly catalysed by CYP3A4. After a single-dose administration of 40 mg pantoprazole, the
mean area under the plasma concentration-time curve was approximately 6 times higher in
poor metabolisers than in subjects having a functional CYP2C19 enzyme (extensive
metabolisers). Mean peak plasma concentrations were increased by about 60 %. These
findings have no implications for the posology of pantoprazole.
No dose reduction is recommended when pantoprazole is administered to patients with
impaired renal function (including dialysis patients). As with healthy subjects, pantoprazole's
half-life is short. Only very small amounts of pantoprazole are dialyzed. Although the main
metabolite has a moderately delayed half-life (2 - 3h), excretion is still rapid and thus
accumulation does not occur.
Although for patients with liver cirrhosis (classes A and B according to Child) the half-life
values increased to between 3 and 6 h and the AUC values increased by a factor of 3 - 5, the
maximum serum concentration only increased slightly by a factor of 1.3 compared with
healthy subjects.
A slight increase in AUC and Cmax in elderly volunteers compared with younger counterparts
is also not clinically relevant.
Children
Following administration of single oral doses of 20 or 40 mg pantoprazole to children aged 5
- 16 years AUC and Cmax were in the range of corresponding values in adults.
Following administration of single i.v. doses of 0.8 or 1.6 mg/kg pantoprazole to children
aged 2 - 16 years there was no significant association between pantoprazole clearance and
age or weight. AUC and volume of distribution were in accordance with data from adults.
Absorption
Pantoprazole is rapidly absorbed and the maximal plasma concentration is achieved even
after one single 20 mg oral dose. On average at about 2.0 h - 2.5 h p.a. the maximum serum
concentrations of about 1-1.5 µg/ml are achieved, and these values remain constant after
multiple administration. Pharmacokinetics does not vary after single or repeated
administration. In the dose range of 10 to 80 mg, the plasma kinetics of pantoprazole is
linear after both oral and intravenous administration.
The absolute bioavailability from the tablet was found to be about 77 %. Concomitant intake
of food had no influence on AUC, maximum serum concentration and thus bioavailability.
Only the variability of the lag-time will be increased by concomitant food intake.
Distribution
Pantoprazole's serum protein binding is about 98 %. Volume of distribution is about 0.15
l/kg.
Elimination
The substance is almost exclusively metabolized in the liver. The main metabolic pathway is
demethylation by CYP2C19 with subsequent sulphate conjugation, other metabolic pathway
includes oxidation by CYP3A4. Terminal half-life is about 1 hour and clearance is about 0.1
l/h/kg. There were a few cases of subjects with delayed elimination. Because of the specific
binding of pantoprazole to the proton pumps of the parietal cell the elimination half-life
does not correlate with the much longer duration of action (inhibition of acid secretion).
Renal elimination represents the major route of excretion (about 80 %) for the metabolites
of pantoprazole, the rest is excreted with the faeces. The main metabolite in both the serum
and urine is desmethylpantoprazole which is conjugated with sulphate. The half-life of the
main metabolite (about 1.5 hours) is not much longer than that of pantoprazole.
Characteristics in patients/special groups of subjects
Approximately 3 % of the European population lack a functional CYP2C19 enzyme and are
called poor metabolisers. In these individuals the metabolism of pantoprazole is probably
mainly catalysed by CYP3A4. After a single-dose administration of 40 mg pantoprazole, the
mean area under the plasma concentration-time curve was approximately 6 times higher in
poor metabolisers than in subjects having a functional CYP2C19 enzyme (extensive
metabolisers). Mean peak plasma concentrations were increased by about 60 %. These
findings have no implications for the posology of pantoprazole.
No dose reduction is recommended when pantoprazole is administered to patients with
impaired renal function (including dialysis patients). As with healthy subjects, pantoprazole's
half-life is short. Only very small amounts of pantoprazole are dialyzed. Although the main
metabolite has a moderately delayed half-life (2 - 3h), excretion is still rapid and thus
accumulation does not occur.
Although for patients with liver cirrhosis (classes A and B according to Child) the half-life
values increased to between 3 and 6 h and the AUC values increased by a factor of 3 - 5, the
maximum serum concentration only increased slightly by a factor of 1.3 compared with
healthy subjects.
A slight increase in AUC and Cmax in elderly volunteers compared with younger counterparts
is also not clinically relevant.
Children
Following administration of single oral doses of 20 or 40 mg pantoprazole to children aged 5
- 16 years AUC and Cmax were in the range of corresponding values in adults.
Following administration of single i.v. doses of 0.8 or 1.6 mg/kg pantoprazole to children
aged 2 - 16 years there was no significant association between pantoprazole clearance and
age or weight. AUC and volume of distribution were in accordance with data from adults.
Preclinical data reveal no special hazard to humans based on conventional studies of safety
pharmacology, repeated dose toxicity and genotoxicity.
In the two-year carcinogenicity studies in rats neuroendocrine neoplasms were found. In
addition, squamous cell papillomas were found in the forestomach of rats. The mechanism
leading to the formation of gastric carcinoids by substituted benzimidazoles has been
carefully investigated and allows the conclusion that it is a secondary reaction to the
massively elevated serum gastrin levels occurring in the rat during chronic high-dose
treatment. In the two-year rodent studies an increased number of liver tumors was
observed in rats and in female mice and was interpreted as being due to pantoprazole's high
metabolic rate in the liver.
A slight increase of neoplastic changes of the thyroid was observed in the group of rats
receiving the highest dose (200 mg/kg). The occurrence of these neoplasms is associated
with the pantoprazole-induced changes in the breakdown of thyroxine in the rat liver. As the
therapeutic dose in man is low, no harmful effects on the thyroid glands are expected.
In animal reproduction studies, signs of slight fetotoxicity were observed at doses above 5
mg/kg.
Investigations revealed no evidence of impaired fertility or teratogenic effects.
Penetration of the placenta was investigated in the rat and was found to increase with
advanced gestation. As a result, concentration of pantoprazole in the foetus is increased
shortly before birth.
Mannitol , Crospovidone,Sodium Carbonate Anhydrous,Hyreromellose,Calcium Stearate,
Opadry,Acryl eze.
Not applicable.
Do not store above 30°C.
Store in the original package
How supplied
Packs of 15, 30 enteric coated tablets: Each enteric coated tablet contains Pantoprazole
Sodium Sesquihydrate equivalent to 40 mg Pantoprazole.
No special requirements.