Medications and Drugs
Brand Names: Tagamet, Tagamet HB
Generic Name: cimetidine (Pronunciation: sye ME ti deen)
What is cimetidine (Tagamet, Tagamet HB)?
Cimetidine is in a group of drugs called histamine receptor antagonists. Cimetidine works by decreasing the amount of acid your stomach produces.
Cimetidine is used to treat and prevent certain types of ulcer, and to treat conditions that cause the stomach to produce too much acid. Cimetidine is also used to treat gastroesophageal reflux disease (GERD), when stomach acid backs up into the esophagus and causes heartburn.
Cimetidine may also be used for other purposes not listed in this medication guide.
Cimetidine 200 mg-APO
round, green, imprinted with APO 018
Cimetidine 200 mg-MYL
pentagonal, green, imprinted with 53, M
Cimetidine 200 mg-TEV
round, white, imprinted with 93, 111
Cimetidine 300 mg-APO
round, green, imprinted with APO 019
Cimetidine 300 mg-GG
round, green, imprinted with GG 428
Cimetidine 300 mg-IVA
round, white, imprinted with Z 300, 7117
Cimetidine 300 mg-MYL
pentagonal, green, imprinted with 317, M
Cimetidine 300 mg-TEV
round, white, imprinted with 93, 112
Cimetidine 300 mg-TEV8192
oval, green, imprinted with 300, N192
Cimetidine 400 mg-APO
oblong, green, imprinted with APO020
Cimetidine 400 mg-GG
oblong, green, imprinted with GG 429
Cimetidine 400 mg-IVA
oblong, white, imprinted with Z 400, 71 71
Cimetidine 400 mg-MYL
pentagonal, green, imprinted with 372, M
Cimetidine 400 mg-SAN
oblong, white, imprinted with LEK CT4
Cimetidine 400 mg-TEV
oblong, white, imprinted with 93 113
Cimetidine 800 mg-APO
oval, green, imprinted with APO021
Cimetidine 800 mg-GG
oblong, green, imprinted with GG 430
Cimetidine 800 mg-IVA
oval, white, imprinted with Z 800, 77 11
Cimetidine 800 mg-MYL
oval, green, imprinted with M 541
Cimetidine 800 mg-SAN
oval, white, imprinted with LEK CT8
What are the possible side effects of cimetidine (Tagamet, Tagamet HB)?
Stop using cimetidine and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
Less serious side effects may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about cimetidine (Tagamet, Tagamet HB)?
Use this medication exactly as directed on the label, or as your doctor has prescribed it for you. Do not use more of the medication than recommended. Do not use the medication for longer than recommended.
Avoid taking antacids unless your doctor recommends them for heartburn pain. Follow your doctor's advice about the type of antacid to use and when to use it. You may not be able to take the antacid at the same time you take your dose of cimetidine.
Taking cimetidine may make you more susceptible to virus that can cause pneumonia. This has occurred most often in elderly people and in those with diabetes, a weak immune system, or chronic lung disease. Before using cimetidine, tell your doctor if you have any of these conditions.
There are many other drugs that can interact with cimetidine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
Heartburn can be confused with early symptoms of heart attack. Seek emergency medical attention if you have chest pain or heavy feeling, dizziness, pain spreading to the arm or shoulder, sweating, nausea or vomiting, and a general ill feeling.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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