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Diarrhoea and rehydration

Zinc sulfate

No prescription neededDiarrhoea and rehydration
Comes as:Dissolving tabletSyrup

Usual adult dose

For diarrhoea in children, together with ORS: babies under 6 months 10 mg once a day; children 6 months and older 20 mg once a day, for 10 to 14 days. Dissolve the tablet in a little breast milk or clean water. Adult doses for zinc deficiency are set by your doctor.

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

Side effects

Common

  • nausea
  • vomiting soon after the dose
  • metallic taste
  • stomach upset

Serious — get help

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

  • severe or repeated vomiting
  • signs of dehydration getting worse

Do not take it, or take care, if

  • If the child vomits within 30 minutes, give the dose again
  • Long-term high doses can cause copper deficiency (only as advised)
  • Zinc does not replace ORS — always give both

Interactions

Medicines that can react with this one.

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

    Zinc reduces ciprofloxacin absorption; take ciprofloxacin 2 hours before or 6 hours after.

  • Doxycycline

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.

Zinc reduces doxycycline absorption; take them at least 2 hours apart.

Minor1 medicineUsually not a problem, but tell your doctor.
  • Ferrous sulfate

    Iron and zinc compete for absorption; take them at different times.

Oral rehydration salts
No 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.