Cimetidine

Cimetidine is a medication that is used to treat pain due to excess stomach acid, stomach ulcer and heartburn. It can also be given to protect your stomach from the effects of some medications such as painkillers (aspirin, diclofenac, aceclofenac, naproxen, ibuprofen).

Useful information

It is advisable to reduce eating spicy food, drinking alcohol, smoking, and stress because they can cause or worsen ulcers.

Cimetidine prevents the production of acid in your stomach and allows ulcers (sores) to heal.

Useful information

Stomach acid (HCl) is required to digest food. Excess acid can however irritate the walls of the stomach and cause pains.

The stomach has a protective covering to protect against damage caused by stomach acid. Smoking and certain pain medications (aspirin, diclofenac, aceclofenac, naproxen, ibuprofen) can affect the function of the protective covering and lead to ulcers.

Ulcers can also be caused by infections by microorganisms (Helicobacter pylori). An antibiotic may be added to cimetidine to treat ulcers if an infection is suspected.

You may experience:

  • Headache

  • Fatigue

  • Diarrhea

  • Dizziness

  • Enlargement of breast in males

    This side effect usually stops once you stop taking cimetidine

You may eat normally while taking cimetidine.

Useful information

It is advisable to reduce eating spicy food, drinking alcohol, smoking, and stress because they can cause or worsen ulcers.

If you forget to take your prescription, take it as soon as you remember.

If you miss a dose, don’t take a double dose.

If your next dose is approaching, skip the missed dose and take the next one.

Cimetidine does not affect your ability to drive or operate machinery.

Cimetidine isn’t addictive.

Cimetidine has not been shown to affect sexual performance, fertility or contraceptives.

If you experience any sexual dysfunction when taking cimetidine, talk to your doctor.

Cimetidine can safely be used during pregnancy with consent from your doctor.

Cimetidine can be found in breast milk. Don’t take this medication when breastfeeding unless prescribed by a doctor.

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