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What is this medicine?
CIMETIDINE (sye MET i deen) is a type of antihistamine that blocks the release of stomach acid. It is used to treat stomach or intestinal ulcers. It can relieve ulcer pain and discomfort, and the heartburn from acid reflux.
How should I use this medicine?
The medicine is for injection into a muscle or infusion into a vein. It is given by a health care professional in a hospital or clinic setting.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
agitation, nervousness, depression, hallucinations
breast swelling, tenderness
change in sex drive or performance
redness, blistering, peeling or loosening of the skin, including inside the mouth
yellowing of the eyes or skin
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
What may interact with this medicine?
Do not take cimetidine if you take the following drugs:
This medicine may also interact with the following medications:
What if I miss a dose?
This does not apply.
Where should I keep my medicine?
This drug is given in a hospital or clinic and will not be stored at home.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
blood in your stools (black or tarry stools) or if you have blood in your vomit
pain or trouble trying to swallow food
an unusual or allergic reaction to cimetidine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
What should I watch for while using this medicine?
Your condition will be monitored carefully while you are receiving this medicine.
Do not take with aspirin, ibuprofen or other antiinflammatory medicines. These can make your condition worse.
Do not smoke cigarettes or drink alcohol. These increase irritation in your stomach and can lengthen the time it will take for your ulcer to heal.
If you get black, tarry stools or vomit up what looks like coffee grounds, call your doctor or health care professional at once. You may have a bleeding ulcer.