User:Mr. Ibrahem/Cimetidine

Cimetidine, sold under the brand name Tagamet among others, is a medication used to treat stomach ulcers, gastroesophageal reflux disease (GERD), heart burn, and upper GI bleeding. It may also be used for allergic reactions. It is taken by mouth or by injection. Onset is within an hour with effects lasting for up to 5 hours.

Common side effects include dizziness, headache, sleepiness, and diarrhea. Prolonged use may result in breast enlargement. Other side effects may include arrythmias, pneumonia, and confusion. There is no evidence of harm in pregnancy, but such use has not been well studied. H2 receptor antagonist that inhibits stomach acid production.

Cimetidine was developed in 1971 and came into commercial use in 1977. It is available as a generic medication. In the United Kingdom a month of medication costs the NHS about £16 as of 2021. This amount in the United States is about 33 USD.