King Tonic Liquid (Ferrous Fumarate; Thiamine Hydrochloride; Riboflavin; Pyridoxine Hydrochloride; Nicotinamide; Calcium D-Pantothenate; Vitamin B12) — Uses, Dosage & NAFDAC

Who is this for?

What is this drug?

This is a combination supplement that contains iron (ferrous fumarate) and B-vitamins (B1, B2, B3, B5, B6, and B12) that work together to help your body build healthy red blood cells, fight tiredness, and keep your nerves and energy levels in good shape.

What is it used for?

Anaemia (blood shortage)tiredness and weaknesspoor appetitevitamin B deficiencyrecovery after illnessgeneral body weaknesssupporting health during heavy menstrual periods

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Anaemia Vitamins & Supplements

How it works

Supplies bioavailable iron for haemoglobin synthesis and provides B-complex vitamins that function as essential coenzymes in energy metabolism, haematopoiesis, and nervous system function, thereby correcting micronutrient deficiencies and restoring oxygen-carrying capacity.

Available Over The Counter

Get this from any pharmacy or chemist — no prescription needed.

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How to take this drug

For adults, the usual dose is 1 to 2 tablets or 1 to 2 tablespoons of tonic daily, or as directed on the pack. It is best taken after food to avoid stomach upset. You can take it with water or a soft drink — avoid taking it with tea or coffee as they can reduce iron absorption.

What if I Miss a Dose?

If you miss a dose, take it as soon as you remember. But if it is almost time for your next dose, just skip the missed one and continue as normal. Do not double up to make up for the missed dose.

What to watch out for

Buy only from reputable pharmacies — avoid roadside sellers or open market products that may be expired or fake. Check the NAFDAC number on the pack before purchasing. If you are already taking another multivitamin, check that you are not doubling up on iron or B-vitamins as too much iron can be harmful.

Common Side Effects

Dark or black-coloured stool (this is normal with iron and nothing to worry about)
mild stomach upset or nausea
constipation or hard stool
slight change in urine colour to bright yellow

Serious Side Effects

Severe stomach pain
vomiting
or diarrhoea — stop taking it and see a doctor. Allergic reactions like swelling of the face
lips
or difficulty breathing — go to the hospital immediately.

Drug Interactions

Avoid taking this supplement with tetracycline or ciprofloxacin antibiotics as iron reduces how well they work — space them at least 2 hours apart. Antacids like aluminium hydroxide can also reduce iron absorption. Tea, coffee, and milk taken at the same time can block the iron from entering your body properly.

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Pregnancy & Breastfeeding Warning

This supplement is generally considered safe during pregnancy and breastfeeding and is often recommended to prevent anaemia, but always confirm the right dose with your doctor or midwife.

Who Should NOT Take This

People who are allergic to any of the ingredients
people with iron overload conditions like haemochromatosis
people who have been told by a doctor that they do not have iron deficiency
and people with peptic ulcer should use with caution.

How to Store

Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be hot, so avoid leaving it on window sills or inside cars. Keep the bottle tightly closed and always store out of the reach of children.

For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.

King Tonic