Devit-3 is a sterile intramuscular (I.M.) ampoule containing Vitamin D3 at a concentration of 300,000 I.U./ml. This injectable form of vitamin D3 is designed for medical use to treat vitamin D deficiency. This is a prescription medication that should only be administered by or under the supervision of a healthcare professional. The ampoule contains a sterile solution for intramuscular injection. Each ampoule contains a single dose of vitamin D3.