Acidity Medicines Explained: Antacids, Famotidine and PPIs Like Omeprazole

Acidity is so common in Pakistan that many people treat it as a normal part of life. A burning chest after a heavy dinner, a sour taste at the back of the throat, a stomach that hurts when you skip a meal. Millions of people take a tablet, feel better, and then keep taking it for years without ever asking whether they still need it.

This guide explains how the common acidity medicines differ, how to take them properly, what happens with long-term use, how to step down safely, and which symptoms should never be treated at home.

What causes acidity and heartburn?

The stomach makes strong acid to digest food. The muscle at the lower end of the food pipe normally keeps it from flowing back. When this muscle relaxes, or the stomach makes too much acid, the acid irritates the pipe, causing heartburn. Common reasons include:

• Large, oily or spicy meals, and eating late at night.
• Tea, coffee, fizzy drinks, chocolate and alcohol.
• Smoking, paan, gutka and naswar.
• Being overweight, and pregnancy.
• Painkillers such as aspirin, ibuprofen and diclofenac, which irritate the stomach.
• A stomach infection called H. pylori, which is very common in Pakistan and causes gastritis and ulcers.
• Stress.

For a related problem, see our guide to gas and bloating.

Types of acidity medicines

Antacids: fast but short

Antacids neutralise acid that is already in the stomach. They act within minutes and last one to two hours. Syrups and chewable tablets are examples. Products at Khasmart include Globocid Syrup and Polygel Mix Syrup, and you can read about the antacid group. They are good for occasional symptoms, but they do not heal the lining.

H2 blockers: moderate and longer

Medicines such as famotidine reduce acid production, and work for up to twelve hours. They suit night-time symptoms and mild reflux. See Reducid Syrup and Femme Tablet.

Proton pump inhibitors (PPIs): the strongest

PPIs such as omeprazole, esomeprazole, pantoprazole and lansoprazole switch off the acid pumps in the stomach lining, and are the best medicines for reflux disease, ulcers and gastritis. Examples include Nexum and Navis (both esomeprazole). Differences between them are small for most people, and your doctor will pick one that suits you.

Protective medicines

Sucralfate forms a protective layer over ulcers. It is taken at specific times, and it interferes with other medicines, so ask your pharmacist.

Browse the acidity, heartburn and ulcers category, and the digestive health range.

How to take a PPI properly

• Take it 30 to 60 minutes before a meal, usually breakfast, so it is working when you eat. Taking it after food makes it less effective.
• Swallow capsules whole, and do not crush them unless the pack says that this is fine.
• Give it a few days to work fully. PPIs are not instant, so use an antacid for quick relief meanwhile.
• Take it for the length of time your doctor prescribed. Many conditions need four to eight weeks, not a lifetime.
• Do not combine two PPIs.

Long-term use: what to know

PPIs are safe and very useful when there is a clear reason. But many people keep taking them for years without review. Long-term use has been linked to:

• Low vitamin B12 and low magnesium.
• Reduced absorption of iron, and a possible higher risk of bone fractures in older people.
• A greater risk of some gut infections and pneumonia.
• Rebound acidity when stopped suddenly, which makes people think they still need it.

These risks are small for individuals, but they are a reason to ask each year, do I still need this? See our guides to immunity and supplements and iron deficiency.

How to step down safely

• Do not stop a PPI abruptly after long use without advice.
• Your doctor may reduce it gradually, move to an alternate-day plan or switch to a milder medicine.
• Fix the triggers at the same time: smaller meals, earlier dinners, less tea and fried food, weight loss, and no smoking.
• Raise the head of the bed, and do not lie down for two to three hours after eating.

Interactions to know about

• Clopidogrel (a blood-thinning tablet used after stents and heart attacks) may work less well with omeprazole or esomeprazole. If you take both, ask your doctor whether pantoprazole is a better choice.
• Iron, B12 and calcium absorption can drop with a PPI.
• Painkillers: if you must take NSAIDs, your doctor may add a PPI for protection.

When acidity is not just acidity: see a doctor

• Difficulty or pain when swallowing, or food that gets stuck.
• Unplanned weight loss, or loss of appetite.
• Repeated vomiting, or vomiting blood or black material.
• Black, tarry stool, or blood in the stool.
• Anaemia, or constant tiredness and pallor.
• Symptoms that begin after the age of 50 or 55, or that do not respond to treatment.
• Severe or constant upper belly pain.
• A family history of stomach cancer.
• Chest pain with sweating, breathlessness or pain spreading to the arm or jaw. This may be a heart problem, not acidity. Call for emergency help. Read our guide to angina and heart medicines.

Your doctor may test for H. pylori, since treating it can cure many ulcers and gastritis cases.

Everyday habits that reduce acidity

• Eat smaller meals, slowly, and avoid going to bed immediately.
• Limit very spicy, oily and fried foods, and heavy biryani at night.
• Choose less tea and coffee, particularly on an empty stomach.
• Avoid smoking and chewing paan or gutka.
• Walk after meals, and keep a healthy weight.
• Do not take painkillers on an empty stomach.

Frequently asked questions

Can I take a PPI every day for years?

Some people with serious conditions need to. Others do not. Ask your doctor to review it at least once a year.

Is omeprazole better than esomeprazole?

They are very similar. Esomeprazole is a refined form of omeprazole, and differences in everyday use are small.

Why does my acidity come back when I stop the tablet?

Rebound acid production is common after long use, and does not always mean the illness has returned. Step down gradually.

Is it safe to take acidity medicine during pregnancy?

Many are, but always ask your doctor. Antacids and some H2 blockers are commonly used.

Order acidity care from Khasmart, and upload your prescription for prescription medicines, with delivery across Pakistan.

This article is for general information and is not a substitute for advice from your doctor or pharmacist. It does not include doses for you; your doctor decides the medicine and amount. Always follow the directions on the pack or from your doctor.