Tagamet HB

Generic name:cimetidine [ sye-ME-ti-deen ]
Drug class:H2 antagonists

Medically reviewed by Drugs.com on May 19, 2022. Written by Cerner Multum.

What is Tagamet HB?

Tagamet HB is a stomach acid reducer that is used to treat and prevent certain types of stomach ulcer. This medicine is also used to treat gastroesophageal reflux disease (GERD), when stomach acid backs up into the esophagus and causes heartburn.

Over-the-counter (nonprescription) Tagamet HB is used to treat heartburn with sour stomach and acid indigestion, or to prevent these conditions when caused by certain foods or beverages.

Tagamet HB may also be used for purposes not listed in this medication guide.

Warnings

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Before taking this medicine

Heartburn can mimic early symptoms of a heart attack. Get emergency medical help if you have chest pain that spreads to your jaw or shoulder and you feel anxious or light-headed.

You should not use Tagamet HB if you are allergic to Tagamet HB or other stomach acid reducers (such as ranitidine, famotidine, Zantac, Axid, and others)

Ask a doctor or pharmacist if Tagamet HB is safe to use if you have:

• stomach pain, nausea, and vomiting;

• trouble swallowing;

• frequent chest pain;

• heartburn with wheezing;

• unexplained weight loss;

• heartburn lasting longer than 3 months; or

• liver or kidney disease.

Ask a doctor before using this medicine if you are pregnant.

You should not breastfeed while using Tagamet HB.

Do not give this medicine to a child without medical advice.

How should I take Tagamet HB?

Use exactly as directed on the label, or as prescribed by your doctor.

Tagamet HB is usually taken with meals or at bedtime.

To prevent heartburn from foods or beverages, take Tagamet HB within 3...