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Pan 40 dosage: how to take it

Also in: हिन्दी தமிழ் मराठी తెలుగు ಕನ್ನಡ বাংলা ગુજરાતી മലയാളം

Also known as: Pan, Pan 40 mg, Pan 40 tablet, Pan40

Take Pan 40 exactly as your doctor advises or as printed on the pack. The dose and how long you take it depend on the condition being treated.

Pan 40: Uses, How It Works, Side Effects

Active ingredient
Pantoprazole 40 mg
Type of medicine
Proton pump inhibitors (PPIs)
Used for
Acidity and acid reflux, Stomach and duodenal ulcers
Starts working in
Acid falls within hours; symptoms often ease in 2 to 3 days
Effect lasts
About 24 hours per dose
With or without food
Usually before breakfast, about 30 to 60 minutes earlier
Alcohol
Best avoided; it can make acidity worse
Pregnancy
Ask your doctor
Habit-forming
No
Made by
Alkem Laboratories Ltd

Pharmacist review in progress. This page is based on the sources listed below and is being checked by our registered pharmacist.

On this page
  1. How to take Pan 40
  2. Who should be careful
  3. Medicines and things that interact with Pan 40
  4. If someone takes too much
  5. Common questions

How to take Pan 40

Take Pan 40 exactly as your doctor advises or as printed on the pack. The dose and how long you take it depend on the condition being treated.

  • It is usually taken once a day, before breakfast (commonly 30 to 60 minutes before the meal). Some conditions need it twice a day; follow your prescription.
  • Swallow the tablet whole with water. Do not crush, chew or break it, because the coating protects the medicine from stomach acid.
  • If you miss a dose, take it when you remember. If it is almost time for the next dose, skip the missed one. Do not take two doses together.
  • Symptoms often ease within 2 to 3 days, but full benefit can take up to 4 weeks. Take it for as long as your doctor advises.
  • Long-term use should be reviewed by a doctor regularly. Do not keep taking it for months on your own.
  • People with severe liver disease may need a lower dose. Tell your doctor about any liver problems.
  • Pan 40 is not usually used for children. Any use in children is decided by a doctor.

Who should be careful

Some people need to check with a doctor before taking pantoprazole, or need extra checks while taking it, especially for a long time.

  • Warning signs that need a doctor's check first: unexplained weight loss, difficulty or pain when swallowing, repeated vomiting, vomiting blood, or black stools. Pantoprazole can ease symptoms and hide a more serious problem such as stomach cancer
  • Long-term use (especially more than a year): it can lower vitamin B12 (tiredness, tingling, a sore red tongue) and slightly raise the risk of bone fractures, gut infections and harmless stomach growths called fundic gland polyps. Your doctor may review whether you still need it
  • Low magnesium, or taking medicines such as water tablets (diuretics) or digoxin: your doctor may check magnesium levels
  • Weak bones (osteoporosis) or a high risk of fractures
  • Liver disease
  • A past skin reaction to pantoprazole or a similar medicine, such as a lupus-type rash
  • A planned blood test for chromogranin A or tests for neuroendocrine tumours: pantoprazole may need to be stopped for some time beforehand, so tell the doctor doing the test
  • Pregnancy or breastfeeding: there is limited information in pregnancy, so ask your doctor; only very small amounts pass into breast milk
  • Past allergic reaction to pantoprazole or similar medicines such as omeprazole, esomeprazole or rabeprazole

Medicines and things that interact with Pan 40

Pantoprazole lowers stomach acid, which changes how some medicines are absorbed, and it affects a few others directly. Tell your doctor or pharmacist about everything you take.

  • HIV medicines atazanavir, nelfinavir and rilpivirine: pantoprazole can sharply lower their levels and make them less effective. Rilpivirine must not be taken with it
  • Methotrexate, especially at high doses: levels of methotrexate may rise and stay high for longer
  • Warfarin and similar blood thinners: changes in blood clotting tests and bleeding have been reported, so your doctor may check your INR more often
  • Medicines that need stomach acid to be absorbed, such as ketoconazole and itraconazole (antifungals), iron tablets, and some cancer medicines such as erlotinib, dasatinib and nilotinib: they may work less well
  • Mycophenolate (used after organ transplants): may be absorbed less well
  • Rifampicin (a TB medicine) and St John's wort: may lower pantoprazole levels
  • Some laboratory tests: pantoprazole can falsely raise chromogranin A levels and can rarely cause a false positive urine drug test for cannabis (THC)

If someone takes too much

There is no specific antidote for a pantoprazole overdose; treatment supports the body while the medicine clears. One extra tablet taken by mistake is unlikely to cause harm. If someone has taken much more than prescribed, or feels unwell, call 112 or go to the nearest hospital and take the medicine pack with you.

Common questions

When should I take Pan 40, before or after food?

It is usually taken once a day before breakfast, often 30 to 60 minutes before the meal. Pantoprazole blocks the acid pumps that switch on when you eat, so having it in the blood around mealtime helps it work best. Follow your doctor's advice or the label.

How long does Pan 40 take to work?

Acid output starts falling within a few hours of the first dose, but symptoms usually ease over 2 to 3 days as more acid pumps are blocked. Full benefit can take up to 4 weeks. It is not meant for instant relief of a sudden attack of acidity.

Can I take Pan 40 every day for a long time?

Only if your doctor advises it and reviews it regularly. Long-term use, especially beyond a year, is linked to low vitamin B12 and magnesium, bone fractures and gut infections. Many people need it only for a few weeks. Do not continue it for months on your own.

Can I take Pan 40 with painkillers or antibiotics?

It is often prescribed with painkillers such as ibuprofen to protect the stomach, and with antibiotics to treat H. pylori. It does interact with a few medicines, including methotrexate, warfarin, some HIV medicines and some antifungals, so tell your doctor or pharmacist about everything you take.

Can I crush or chew Pan 40?

No. Swallow it whole with water. The special coating protects pantoprazole from stomach acid, which would destroy it before it can be absorbed. If you have trouble swallowing tablets, ask your doctor about other forms.

Sources

  1. PROTONIX (pantoprazole sodium) delayed-release tablets: full prescribing information (revised 6/2023). Pfizer (Wyeth Pharmaceuticals), US FDA-approved labeling
  2. PROTONIX (pantoprazole sodium) delayed-release tablets and oral suspension (label revised 6/2023). DailyMed, US National Library of Medicine
  3. Pantoprazole 40 mg gastro-resistant tablets: Summary of Product Characteristics. electronic medicines compendium (emc), UK
  4. Pantoprazole. StatPearls, National Center for Biotechnology Information (NCBI), US National Library of Medicine
  5. Pantoprazole: medicine to lower stomach acid. NHS (UK)
  6. How and when to take pantoprazole. NHS (UK)
  7. Side effects of pantoprazole. NHS (UK)
  8. Pregnancy, breastfeeding and fertility while taking pantoprazole. NHS (UK)
  9. Common questions about pantoprazole. NHS (UK)
  10. Who can and cannot take pantoprazole. NHS (UK)
  11. Pantoprazole. Drugs and Lactation Database (LactMed), NCBI, US National Library of Medicine
  12. Rebound Acid Hypersecretion after Withdrawal of Long-Term Proton Pump Inhibitor (PPI) Treatment: Are PPIs Addictive? (Namikawa and Björnsson, Int J Mol Sci, 2024). PubMed Central, US National Library of Medicine
  13. CMDh confirms recommendations on restricting use of domperidone-containing medicines. European Medicines Agency
  14. List of drugs prohibited for manufacture and sale through gazette notifications under section 26A of the Drugs & Cosmetics Act 1940. Central Drugs Standard Control Organisation (CDSCO)
  15. Fixed Dose Combinations (including list of 156 prohibited FDCs dated 02.08.2024). Central Drugs Standard Control Organisation (CDSCO)
  16. National Formulary of India. Indian Pharmacopoeia Commission
  17. Pradhan Mantri Bhartiya Janaushadhi Pariyojana. Pharmaceuticals & Medical Devices Bureau of India