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vitamin c
Commercial name
Ascorbic Zein
Category
VITAMINS- MINERALS
Chemical composition

Each tablet contains 500 mg ascorbic acid (vitamin C).

Dosage Form
tablets
Pharmaceutical group
vitamins
Contraindications

- Hypersensitivity to the active substance or to any of the excipients used

- Ascorbic acid should not be given to patients with hyperoxaluria

Drug interactions

- Ascorbic acid increases the renal excretion of amphetamine. The plasma concentration of ascorbate is decreased by smoking and oral contraceptives.

- Ascorbic acid increases the absorption of iron.

- Concomitant administration of aspirin and ascorbic acid may interfere with absorption of ascorbic acid. Renal excretion of salicylate is not affected and does not lead to reduced anti-inflammatory effects of aspirin.

- Concomitant administration of aluminium-containing antacids may increase urinary aluminium elimination. Concurrent administration of antacids and ascorbic acid is not recommended, especially in patients with renal insufficiency.

- Co-administration with amygdalin (a complementary medicine) can cause cyanide toxicity.

- Concurrent administration of ascorbic acid with desferrioxamine enhances urinary iron excretion.

- Ascorbic acid may interfere with biochemical determinations of creatinine, uric acid and glucose in samples of blood and urine

Dosage and usage

 

Ascorbic acid (Vitamin C) is used as a dietary supplement when the amount of ascorbic acid in the diet is insufficient.

- Ascorbic acid is also used to prevent and treat scurvy (a disease that causes fatigue, swollen gums, joint pain, and poor wound healing from a lack of vitamin C in the body).

·         Adults and children over 6 years old:

Preventive: 25 - 75 mg daily

Note: This unit dosage form is not suitable for prophylactic use.

Treatment: Not less than 250 mg daily in divided doses. 1000 mg daily maximum.

·         Children under 6 years old:

This unit dosage form is not suitable for children under 6 years of age.

·         Elderly :

For other adults. Because the dietary intake of vitamin C may be lower in the elderly, they are more likely to develop vitamin C deficiency

Side Effect

- Nervous system disorders: headache.

- Vascular disorders: flushing.

- Gastrointestinal disorders: nausea, vomiting and stomach cramps. Large doses of ascorbic acid may cause diarrhoea.

- Skin and subcutaneous tissue disorders: redness of skin.

- Renal and urinary disorders: Patients known to be at risk of hyperoxaluria should not ingest ascorbic acid doses exceeding 1g daily as there may be increased urinary oxalate excretion.

- Increased intake of ascorbic acid over a prolonged period may result in increased renal clearance of ascorbic acid

Marketing authorization number(s)

Ascorbic acid tablets 500 mg ...................

The nature and content of the packaging

A carton box containing two blister ,each plester contain 10 round tablets