Vitamins & supplements · Combined vitamin and mineral supplement

Multivitamin with minerals

A daily multivitamin providing essential vitamins and minerals to support general nutrition when dietary intake may be inadequate.

OTCPregnancy: cautionKidney warningLiver warningSenior precaution
RevitalCentrumSupradynOne-a-Day
Overview & typical uses

A daily multivitamin providing essential vitamins and minerals to support general nutrition when dietary intake may be inadequate.

Primary uses

  • Support daily nutritional needs
  • Bridging temporary dietary gaps
How it works

Supplies vitamins and minerals used by the body's many enzyme systems, immune function, and general metabolism.

Available forms & strengths
  • Tablet (Oral)
  • Softgel capsule (Oral)
  • Effervescent tablet (Oral)
General precautions & contraindications

Do not use if

  • Known allergy to any ingredient
  • Iron-containing multivitamins in iron overload conditions

Pregnancy

Use with caution — discuss with clinician. Prefer a dedicated pregnancy multivitamin (with the right folate and iron balance).

Breastfeeding

Generally considered safe. Standard multivitamins are safe; pregnancy multivitamins are often continued during breastfeeding.

Kidney considerations

  • Some formulations high in vitamin A, D, or potassium may need adjustment in kidney disease.

Liver considerations

  • Discuss high-dose vitamin A products with a clinician if you have liver disease.

Paediatric use

Use paediatric-specific formulations.

Older adults

Senior-adapted formulations often make sense.

Common side effects
  • Mild digestive upset if taken on an empty stomach
  • Change in urine colour (from B vitamins) — harmless
Serious warnings — seek help if these appear
  • Serious allergic reaction (rare)
  • Iron overload if taken alongside iron supplements
Drug interactions
Levothyroxinecaution

Calcium/iron can reduce absorption — separate doses by 4 hours.

Tetracycline / fluoroquinolone antibioticscaution

Calcium, iron, magnesium can reduce absorption.

Warfarincaution

Sudden changes in vitamin K intake can alter INR.

Food & alcohol precautions
Food

Take with a meal to reduce stomach upset.

Storage, missed dose & overdose

Storage

Store below 25 °C, out of reach of children.

If a dose is missed

Take when remembered — do not double up.

Overdose

Long-term overdose (especially fat-soluble vitamins A and D) can cause toxicity. Do not combine multiple supplements without advice.

Frequently asked questions
Do I need a multivitamin every day?

Most healthy adults with a balanced diet don't strictly need one. Discuss with a clinician for pregnancy, restrictive diets, or specific deficiencies.

Medical references
  • WHO Model Formulary — Vitamins & mineralsWorld Health Organization

Content last reviewed: 2025-01-01

Medical disclaimer

This information is for educational purposes only and should not replace professional medical advice. Please consult a licensed pharmacist or clinician for advice tailored to your personal circumstances.