Indications
This is a multivitamin preparation that contains both water-soluble vitamins (the B group and vitamin C) and fat-soluble vitamins (A, D, E and sometimes K). It is used to prevent and treat vitamin deficiencies caused by poor diet, illness, recovery from surgery, poor appetite, increased needs or conditions that reduce absorption.
How It Works
Each vitamin has its own job. B vitamins help turn food into energy and support nerves and blood cells; vitamin C supports healing and immunity; vitamin A supports vision and skin; vitamin D helps the body absorb calcium for bones; vitamin E protects cells from damage. Replacing missing vitamins helps these body processes work normally.
Dosage and Administration
Use as directed on the label or by your doctor. Oral tablets, capsules or syrup are usually taken once a day after a meal. Some products of this kind are injections or infusions; these are given by a doctor or nurse at the dose prescribed. Do not take more than the recommended amount.
Interactions
Vitamin K can reduce the effect of Warfarin. Large doses of vitamin B6 can reduce the effect of Levodopa. Folic acid may affect levels of Phenytoin. Avoid taking other vitamin A or D supplements at the same time unless advised, to prevent excess. Some antiepileptic medicines and Orlistat may lower vitamin levels.
Contraindications
- Allergy to any ingredient
- Existing excess of vitamin A or vitamin D, or high blood calcium
- Severe kidney disease, unless advised by a doctor
Side Effects
Usually well tolerated. Mild nausea, stomach upset, change in taste, and bright yellow urine (from vitamin B2, harmless) may occur. Injections may cause pain at the site or flushing.
Get urgent medical help if there is swelling of the face, lips or throat, difficulty breathing, a widespread rash, or fainting during or after an injection.
Pregnancy and Lactation
Normal daily doses are generally safe. Avoid high doses of vitamin A in pregnancy, as too much can harm the baby. Pregnant women should preferably use a product made for pregnancy; ask your doctor.
Precautions and Warnings
Do not combine with other multivitamins without advice, because fat-soluble vitamins (A, D, E, K) build up in the body. Keep away from children; products containing iron are especially dangerous for them. Tell your doctor if you have kidney or liver disease or take blood thinners.
Overdose
Large or long-term overdoses can cause vitamin A or D toxicity: headache, nausea, vomiting, blurred vision, thirst, weakness, bone pain or confusion. Seek medical advice.
Therapeutic Class
Vitamin preparation (multivitamin).
Storage
Store below 30°C in a dry place, away from light and out of the reach of children. Injections: store as directed on the pack.
Prepared by the Oshud Alo team from standard drug references. For information only; always follow your doctor's advice.