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Multivitamin: uses, side effects & brands
Multivitamins provide a mix of vitamins and minerals for general nutritional support. It belongs to the Vitamin & supplement group. Supplements correct deficiencies and support health when diet or absorption falls short.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Vitamin & supplement |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Filling gaps in a poor or restricted diet
- Support during recovery from illness or poor appetite
- Older adults who eat little
- Pregnancy (using a product designed for pregnancy)
Common brand names
- India: Zincovit, Supradyn, A to Z, Becosules
- Worldwide: Centrum, One A Day
Common side effects
- Mild stomach upset or nausea
- Bright yellow urine (harmless, from vitamin B2)
- Constipation or dark stools (iron-containing products)
Before taking it — precautions
- Avoid doubling up with other supplements — too much vitamin A, vitamin D or iron can be harmful
- In pregnancy use a pregnancy-specific product and avoid high-vitamin-A products
- Tell your doctor if you take warfarin (vitamin K can affect it) or have kidney disease
When to see a doctor urgently
- A child swallowing tablets, especially iron-containing ones (urgent)
- Rash, swelling of the face or difficulty breathing (urgent)
- Severe vomiting, headache or confusion after taking large amounts
Frequently asked questions
Do I need a multivitamin if I eat well?
Most people with a balanced diet do not. They help most when your diet is limited, during pregnancy, or when a doctor finds a deficiency.
Why is my urine bright yellow?
This is from riboflavin (vitamin B2) and is harmless.
Can a multivitamin replace my prescribed iron, folic acid or vitamin D?
Usually not — multivitamins contain smaller amounts than treatment doses. Keep taking what your doctor prescribed unless told otherwise.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.