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Cimetidine

Cimetidine

What is Cimetidine used for?

Cimetidine is used to treat ulcers of the stomach and intestines and prevent them from coming back after they have healed. This medication is also used to treat certain stomach and throat (esophagus) problems caused by too much stomach acid (such as Zollinger-Ellison syndrome, erosive esophagitis) or a backward flow of stomach acid into the esophagus (acid reflux disease/GERD). Decreasing extra stomach acid can help relieve symptoms such as stomach pain, heartburn, difficulty swallowing, cough, and trouble sleeping. It can also prevent serious acid damage to your digestive system (such as ulcers, cancer of the esophagus). Cimetidine belongs to a class of drugs commonly called H2 blockers. It works by reducing the amount of acid in your stomach. This medication is also available without a prescription. It is used to treat occasional heartburn caused by too much acid in the stomach (also called acid indigestion or sour stomach). It is also used to prevent heartburn and acid indigestion caused by certain foods and beverages. If you are taking this medication for self-treatment, it is important to read the manufacturer's package instructions carefully so you know when to consult your doctor or pharmacist. (See also Precautions.) Do not use this medication to treat children younger than 12 unless directed by the doctor.

CHEMICAL NAME

Cimetidine (sye-MET-uh-deen)

DRUG TYPE

Heartburn/Ulcer Disease

Cimetidine Prices

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Cimetidine Frequently Asked Questions

See also How to Use section.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug include: dofetilide, epirubicin, artemether, clopidogrel, lumefantrine, metformin, moclobemide, moricizine, quinidine, silver sulfadiazine.

This medication can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include fezolinetant, metoprolol, tacrine, warfarin, zaleplon, calcium channel blockers (such as diltiazem), tricyclic antidepressants (such as amitriptyline), theophylline, among others.

Since cimetidine reduces the amount of acid in your stomach, it may also change the absorption of certain medications and affect how they work. Some examples of affected drugs include atazanavir, dasatinib, certain azole antifungals (such as itraconazole, ketoconazole), levoketoconazole, pazopanib, sparsentan, among others. Ask your doctor or pharmacist if any of the medications you take are affected by cimetidine and how to manage this interaction.

Cigarette smoking can affect this medication. Tell your doctor if you smoke and if you stop or start smoking while using this medication.

This medication and similar H2 blockers (such as famotidine, nizatidine, ranitidine) are available both with and without a prescription. Do not take them at the same time.

Cimetidine Dosage and Form Information

Supplied As
Strength
Tablet
400 Mg
200 Mg
800 Mg
300 Mg
Solution Oral
300 Mg/5Ml