Famotidine is a medication that reduces the amount of acid produced in the stomach. It is commonly used to treat ulcers, gastroesophageal reflux disease (GERD), and conditions where the stomach produces too much acid. Famotidine belongs to a class of drugs known as H2 blockers, which work by reducing the amount of acid in the stomach.

Famotidine FAQ


What is famotidine used for?

Famotidine is used to treat ulcers in the stomach and intestines, gastroesophageal reflux disease (GERD), and conditions where the stomach produces too much acid.

How does famotidine work?

Famotidine belongs to a class of drugs known as H2 blockers, which work by reducing the amount of acid in the stomach.

Can I buy famotidine without a prescription?

In the UK, famotidine is available both over-the-counter and with a prescription, depending on the strength. It is always best to consult with a healthcare professional before starting any new medication.

What are the common side effects of famotidine?

Common side effects may include headache, dizziness, constipation, or diarrhea. If these effects persist or worsen, it is important to seek medical attention.

How should famotidine be taken?

Famotidine is usually taken orally, either with or without food. The dosage and frequency of administration will depend on the condition being treated, so it is important to follow the doctor's instructions or the instructions on the package.

Can famotidine be taken with other medications?

It is important to inform the healthcare professional about all other medications being taken, as famotidine may interact with certain drugs. This will help avoid any potential interactions or adverse effects.

Is famotidine safe for long-term use?

Famotidine is generally safe for long-term use when taken as directed. However, it is important to follow the prescribed dosage and to consult with a healthcare professional if there are any concerns about long-term use.

What should I do if I miss a dose of famotidine?

If a dose of famotidine is missed, it should be taken as soon as possible. However, if it is almost time for the next dose, the missed dose should be skipped and the regular dosing schedule resumed.

Is famotidine safe during pregnancy?

Pregnant individuals should consult with a healthcare professional before using famotidine, as there may be potential risks to the unborn baby. The benefits and risks should be carefully evaluated before using this medication during pregnancy.

Can famotidine cause allergic reactions?

Allergic reactions to famotidine are rare, but they can occur. Signs of an allergic reaction may include rash, itching, swelling, severe dizziness, or trouble breathing. If any of these symptoms are experienced, immediate medical attention is necessary.

What should I do in case of famotidine overdose?

In case of an overdose, it is important to seek immediate medical attention. Overdose symptoms may include difficult or slow breathing, and fainting. It is important to avoid taking more than the prescribed dosage of famotidine.

How long does it take for famotidine to work?

Relief from symptoms of ulcers and GERD may be felt within a few days of starting famotidine, but the full benefit of the medication may take several weeks. It is important to continue taking the medication as prescribed, even if relief is experienced.

What dietary precautions should I take while using famotidine?

It is important to avoid certain foods or drinks that can worsen stomach acid issues, such as spicy foods, citrus fruits and juices, and alcohol. Making dietary and lifestyle changes can complement the effects of famotidine.

Can famotidine cause drowsiness?

Drowsiness is not commonly associated with famotidine use. However, individual responses to medication can vary, so it is important to be cautious when driving or operating machinery until the effects of the medication are known.

Is there a specific time of day when famotidine should be taken?

The timing of famotidine administration can vary depending on the condition being treated. It is best to follow the prescribed dosing schedule as indicated by the healthcare professional or the instructions on the package.

Can famotidine help with heartburn?

Yes, famotidine is effective in relieving heartburn and other symptoms associated with excess stomach acid. It helps reduce the production of acid in the stomach, providing relief from heartburn and related discomfort.

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Information provided by Maryam Abdullahi-Mahdi. Reviewed by Prof. Vijay Sangar