cimetiidin

Cimetidine is a medication that reduces the amount of acid produced in the stomach. It is a histamine H2-receptor antagonist, meaning it works by blocking the action of histamine, a substance that stimulates the stomach to release acid. Cimetidine was one of the first widely successful drugs in this class and has been used to treat a variety of conditions related to excess stomach acid.

The primary uses for cimetidine include the treatment of duodenal ulcers and gastric ulcers. It can also be used to prevent the recurrence of these ulcers. Additionally, cimetidine is prescribed for conditions such as gastroesophageal reflux disease (GERD), also known as heartburn, and Zollinger-Ellison syndrome, a rare condition that causes the stomach to produce too much acid.

Cimetidine is typically taken orally, either as a tablet or liquid. It is also available in injectable forms for use in hospital settings. The dosage and frequency of administration depend on the specific condition being treated and the patient's response.

While generally considered safe and effective, cimetidine can cause side effects. These may include headache, dizziness, diarrhea, and fatigue. In some cases, more serious side effects can occur, such as confusion, hallucinations, or liver problems. Cimetidine can also interact with other medications, affecting their absorption or metabolism, so it is important for patients to inform their doctor about all other drugs they are taking. Due to these potential interactions and side effects, especially with newer and more selective medications, cimetidine is now less commonly prescribed than it once was for some indications.