**VITAMIN D: Benefits, Side Effects, Uses, Dosage, Warnings?** Other names: calciferol, calcifediol, cholecalciferol, ergocalciferol, dihydroxycholecalciferol, sunshine vitamin, vitamin antirachitic. Indications top Processing Some effectiveness Treat hypoparathyroidism, psoriasis and rickets. Legend symbols Likely effectiveness Prevent dental caries and ... vitamin A. Take the cod liver oil to meet its needs vitamin D could potentially lead to overdose toxic vitamin A 94 .