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Famotidine

Famotidine

What condition does Famotidine treat?

Famotidine is a prescription used for the treatment of peptic ulcers and gastroesophageal reflux disease. This is in the class of medications called histamine-2 (H2) blockers. This prescription is supplied as a tablet for oral use. The Food and Drug Administration (FDA) has already approved this medication.

Histamine is a naturally occurring chemical that stimulates cells in the stomach to produce acid. H2 blockers inhibit the action of histamine on the cells, thus reducing the production of acid.

How does Famotidine work?

Famotidine works by blocking histamine H2 receptors that are found in the cells in the stomach lining. Histamine usually binds to this receptor that causes the cells to create stomach acid. By blocking the H2 receptors, this drug stops histamine from binding to them and stops the cells from making stomach acid.

Stomach acid is made in the stomach as a normal part of the digestive process. Commonly, the linings of the duodenum and stomach are protected by a layer that resists acid attack. On the other hand, if large amounts of stomach acid are formed or this layer is damaged, an ulcer could develop on the lining of the duodenum and stomach. This is called a peptic ulcer.

In GERD, this medication lessens the production of stomach acid. It stops extra acid from flowing back into the food pipe and can be used to get rid of heartburn symptoms accompanying by acid reflux. It also allows the esophagus to heal in reflux esophagitis. By decreasing the amount of acid in the stomach and duodenum, this drug relieves the symptoms of indigestion.

What is the recommended dosage for Famotidine?

Famotidine is to be taken by mouth. This is usually taken once or twice a day or as directed by your doctor. If you are taking this once a day, it is usually taken at bedtime. You may take each dose with or without a meal. The recommended dosage is based on your medical condition, age, and response to the treatment. You should take the right dose, not more or less.  

Do not stop taking this medication without the consent of your doctor. For the best benefit from this product, take it regularly. If you missed a dose, take it as soon as you remember it. Do not take two doses to make up for the missed dose.

What are the side effects of Famotidine?

Common side effects:

  • Constipation
  • Diarrhea
  • Dizziness
  • Mood changes
  • Fatigue
  • Weakness
  • Headache
  • Nausea
  • Vomiting
  • Dry mouth

Stop using this medication and call your doctor right away if these occur:

  • Confusion
  • Lack of energy
  • Sudden dizziness like you might pass out
  • Unexplained muscle pain, weakness, or tenderness especially if you have a fever
  • Unusual tiredness
  • Dark-colored urine

What are the precautions in taking Famotidine?

  • Be sure to tell your doctor if you are taking any other medications such as vitamins or herbal supplements.
  • Before starting this treatment, discuss with your doctor about fertility. Your ability to become pregnant or father a child may be affected.
  • Let your doctor know if you have a medical history of kidney problems, immune system problems, or other stomach problems.
  • Do not use this to treat children younger than 12 unless directed by your doctor.
  • Older adults may be more sensitive to the side effects of this drug.