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Acidity and ulcers

Sodium alginate + Sodium bicarbonate

Also sold as: Gaviscon

No prescription neededAcidity and ulcers
Comes as:SuspensionChewable tablet

Usual adult dose

Usual adult dose: 10 to 20 ml of liquid or 2 to 4 chewable tablets after meals and at bedtime, up to 4 times a day. Do not use regularly for more than 7 days without a doctor.

Your doctor may give you a different dose. Children's doses depend on weight.

Side effects

Common

  • bloating
  • wind
  • mild stomach upset

Serious — get help

Stop taking it and see a doctor straight away if you notice:

  • severe allergic reaction
  • swelling or breathlessness in heart or kidney disease (high sodium)

Do not take it, or take care, if

  • Heart failure, high blood pressure or kidney disease on a low-salt diet (high sodium — use with caution)
  • Take other medicines at least 2 hours apart
  • Symptoms lasting more than 7 days need a doctor

Interactions

Medicines that can react with this one.

Moderate2 medicinesTake together only with care. Ask your doctor or pharmacist.
  • Ciprofloxacin

    Antacid products can reduce ciprofloxacin absorption; take them at least 2 hours apart.

  • Levothyroxine

    Can reduce levothyroxine absorption; take them at least 4 hours apart.

Pregnancy

  1. A
  2. B
  3. C
  4. D
  5. X

Not established

Not established. Ask your doctor before using it in pregnancy or while trying to get pregnant.

Generic alternatives

Similar medicines your doctor or pharmacist may offer instead.

  • Aluminium hydroxide + Magnesium hydroxideNo prescription needed
  • FamotidineNo prescription needed
  • OmeprazoleNo prescription needed
Check with my other medicines

Always follow your doctor or pharmacistThis page is general information, not a prescription. Do not start, stop or change a medicine on your own.