Not to be taken by patients w/ rare hereditary problems of fructose intolerance, glucose-galactose malabsorption or sucrase-isomaltase insufficiency. Not to be taken w/ other vit A prep unless medically supervised. Make allowance when prescribed w/ vit from other sources.
Vit A: Possible reduction in absorption w/ neomycin. Risk of hypervitaminosis A w/ retinoids. Vit D: Possible increase in vit D requirements w/ barbiturates, carbamazepine, phenytoin & primidone. Increased risk of hypercalcaemia w/ thiazide diuretics.