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Tagamet HB

Generic name: Cimetidine [sye-ME-ti-deen]

Drug class: H2 antagonists

What is Tagamet HB?

Tagamet HB is a stomach acid reducer that helps treat and avoid certain forms of stomach ulcers. The medicine can also be employed to manage gastroesophageal reflux disease (GERD), which occurs when stomach acid builds into the oesophagus and results in heartburn. OTC (nonprescription) Tagamet H can be employed to help treat heartburn caused by acid indigestion and a sour stomach, as well as to treat these ailments when they are caused by certain food items or drinks. Tagamet HB can also be used for other purposes that are not covered in this guide.

Side effects of Tagamet HB

Contact emergency medical assistance. If you notice symptoms warning signs of an allergic response (hives, breathing difficulties, and swelling in your throat or face) or severe skin reactions (fever, burning or sore throats, irritation in your eyes, skin irritation, and a red or purple eruption that causes peeling and blisters),

Tagamet HB may cause serious side effects. Stop taking Tagamet HB and contact your physician immediately in the event that you suffer from:

  • The pain of swallowing
  • Bloody or tarry stool, a cough with bloody mucus, or vomit that resembles coffee grounds
  • Mood changes, anxiety, disturbances,
  • Hallucinations, confusion, or
  • Breast swelling or tenderness

The risk of serious side effects is higher in older people or those who are debilitated or disabled.

Common negative side effects of Tagamet HP could be:

  • Headache
  • Diarrhoea.

This isn't a complete list of all the side effects. Others could happen. Contact your physician for advice regarding medical adverse effects. You may report any adverse reactions to the FDA at 1-800-FDA-1088.

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Follow all the instructions on the medicine label and the package. Inform your healthcare professionals about your medical ailments, allergies, and any medications you take.

Before you start taking this medicine.

Heartburn may be one of the early signs of a coronary attack. Take immediate medical care. If you are experiencing chest pain that extends into your shoulder or jaw and you experience anxiety or lightheadedness,

It is not recommended to use Tagamet HB in the event that you are intolerant to Tagamet or any other acids that reduce stomach acid (such as ranitidine, famotidine, Zantac, Axid, and many others).

Speak with a pharmacist or doctor to determine if Tagamet HB is safe to use if you suffer from:

  • stomach discomfort, nausea, and vomiting;
  • difficulty swallowing
  • frequent chest pain;
  • heartburn accompanied by wheezing;
  • Unknown weight loss that is not explained;
  • heartburn that lasts for more than 3 months;
  • kidney or liver disease.

Consult your doctor prior to taking this medication if you are expecting.

It is recommended not to breastfeed when taking Tagamet HB. Don't give the medication to an infant without medical guidance.

How to take Tagamet HB?

Follow the directions on the label or as directed by your physician. Tagamet HB is generally taken in conjunction with meals or at bedtime. To prevent heartburn from food or drinks, take a tablet of Tagamet HB for 30 minutes prior to drinking or eating. Consume this medicine along with a cup of fluid. Make sure to measure the liquid medicine with care. Use the syringe for dosing or a dosage-metering device (not an ordinary spoon). It can take as long as 8 weeks for a wound to heal. Make sure to take this medicine for the entire prescribed duration, even if symptoms do not improve immediately. Cigarettes. Consult your physician if symptoms don't improve or if they become worse.Do not take the over-the-counter drug Tagamet for more than 14 days unless you have your physician's guidance. heat, moisture, and light.

What happens If I miss a dose?

You should take the medication as quickly as you are able, but avoid any missed doses if you are nearing the time to take the next dose. Don't take two doses at once.

What happens if I overdose?

Get medical attention in an emergency or contact the poison help line at 1-800-222-1222.

What should be avoided?

Be sure to avoid taking any other medication within 2 hours prior to or 2 hours after taking Tagamet HB. The medicine may make it more difficult for the body to absorb certain medications you take orally. Consult your physician before taking other stomach acid reducers or antiacids. Use only those prescribed by your physician.

What other drugs can impact Tagamet HB?

Talk to your doctor or pharmacist prior to taking Tagamet HB in conjunction with other medications, particularly:

  • Ketoconazole;

  • Phenytoin;

  • Theophylline;

  • An antidepressant drug; or

  • A blood thinner- warfarin, Coumadin, Jantoven;

  • Heart or blood pressure medicine--nifedipine, propranolol; or

  • A sedative--chlordiazepoxide, diazepam.

This list isn't complete and a variety of other medications could interfere with Tagamet HB, or make it less effective when used in conjunction with this medication.


This includes over-the-counter and prescription medications, vitamins, and herbal supplements.


The interactions of all drugs are listed here.




Prescription only

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