Tagamet

Tagamet (cimetidine) is a histamine receptor antagonist used to treat and prevent certain types of ulcer, and to treat conditions that cause the stomach to produce too much acid. Tagamet is also used to treat gastroesophageal reflux disease (GERD), when stomach acid backs up into the esophagus and causes heartburn. Tagamet is available in generic form.

What Are Side Effects of Tagamet?

Tagamet may cause serious side effects including:

• pain when swallowing,
• bloody or tarry stools,
• cough with bloody mucus,
• vomit that looks like coffee grounds,
• mood changes,
• anxiety,
• agitation,
• confusion,
• hallucinations, and
• breast swelling or tenderness

Get medical help right away, if you have any of the symptoms listed above.

Common side effects of Tagamet include:

• headache,
• dizziness,
• drowsiness,
• depression,
• agitation,
• breast swelling or tenderness (in men),
• joint or muscle pain,
• skin rash,
• diarrhea,
• nausea, or
• constipation.

Tell your doctor if you experience unlikely but serious side effects of Tagamet including:

• mental/mood changes (e.g., confusion, hallucinations),
• trouble urinating, or
• decreased sexual ability (with very high doses).

Seek medical care or call 911 at once if you have the following serious side effects:

• Serious eye symptoms such as sudden vision loss, blurred vision, tunnel vision, eye pain or swelling, or seeing halos around lights;
• Serious heart symptoms such as fast, irregular, or pounding heartbeats; fluttering in your chest; shortness of breath; and sudden dizziness, lightheadedness, or passing out;
• Severe headache, confusion, slurred speech, arm or leg weakness, trouble walking, loss of coordination, feeling unsteady, very stiff muscles, high fever, profuse sweating, or tremors.

This document does not contain all possible side effects and others may occur. Check with your physician for additional information about side effects.

Dosage for Tagamet

Dose of Tagamet depends on the condition being treated and the patient's response to the medication.

What Drugs, Substances, or Supplements Interact with Tagamet?

Tagamet may interact with blood thinners, clopidogrel, phenytoin, nifedipine, metronidazole, propranolol, chlordiazepoxide, lidocaine, diazepam, theophylline, depression or anxiety medications. Tell your doctor all medications you use.

Tagamet During Pregnancy and Breastfeeding

Tagamet should be used only when prescribed during pregnancy. This medication passes into breast milk. Consult your doctor before breastfeeding.

Additional Information

Our Tagamet (cimetidine) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

Description for Tagamet

READ THE DIRECTIONS AND WARNINGS, INCLUDING THOSE PRINTED ON THE INSIDE OF THE CARTON, BEFORE TAKING THIS PRODUCT.

Drug Facts

Active ingredient

(in each tablet) Cimetidine 200mg