Serc (Betahistine) –

Serc (Betahistine)




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Product Details


SERC (betahistine) is a medication that can treat episodes of recurrent vertigo that are associated with Ménière’s disease.

People with Ménière’s disease have extra fluid that builds inside of their ear canals. Extra fluid interferes with the nerves in the inner ear that detect position, movement, and balance. People with Ménière’s disease have recurrent episodes of vertigo that may interfere with their daily lives.

SERC medication works by interacting with both histamine-1 and histamine-3 receptors on the surface of nerve cells of the ear. The interactions seem to decrease how much histamine is available to activate these nerve cells. SERC also increases blood flow to the inner ear and it slows down nerve signals in lateral and medial vestibular nuclei.

The FDA has not approved SERC for any indication in the United States. SERC is widely used in both Europe and Canada.


Take 24 mg to 48 mg by mouth in divided doses. SERC dosages include a 16 mg tablet and a 24 mg tablet.

Examples of different dosing may include:

  • Twice daily dosing: 24 mg by mouth twice daily
  • Three times daily dosing: 8 mg to 16 mg by mouth three times daily


The active ingredient in SERC is betahistine.


Do not take SERC if you have a peptic ulcer or similar stomach conditions. Speak with your doctor or pharmacist if you have a history of these conditions.

Do not take SERC if you have a history of pheochromocytoma.

If you have a history of asthma, speak with your doctor before taking SERC.

Side Effects

The most common side effects of SERC may include:

  • Bloating
  • Dyspepsia
  • Headache
  • Itching
  • Nausea
  • Skin rashes
  • Stomach pain
  • Vomiting