About vitamin a + ascorbic acid + ergocalciferol + halibut liver oil
Vitamins A, C, and D supplement
Used for
- Prevention or treatment of vitamin A, C, or D deficiency
- Nutritional supplementation when dietary intake is inadequate
Usual adult dose
No standard dose; follow the product label because vitamin content varies.
Usual dose in children
No standard dose; use only a children’s product and follow its label.
Common side effects
- Nausea or stomach upset
- Constipation or diarrhea
- Excess vitamin A or D can cause serious toxicity
Important warnings
- Avoid taking other products containing vitamins A or D without checking total intake.
- Excess vitamin A can harm the liver and cause birth defects.
- Excess vitamin D can raise blood calcium and damage the kidneys.
- Halibut liver oil may contain additional nutrients; exact contents vary by product.
Pregnancy
High vitamin A intake can cause birth defects; pregnancy safety depends on the exact formulation and dose.
Breastfeeding
Usual nutritional amounts are generally compatible, but excessive vitamin A or D may be harmful.
Interactions
- Orlistat and bile-acid binders can reduce absorption of fat-soluble vitamins.
- Retinoid medicines can increase vitamin A toxicity risk.
- Thiazide diuretics may increase the risk of high blood calcium with vitamin D.
- Some anticonvulsants can reduce vitamin D levels.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.