Vitamin A & D Injectable: Vitamin A 500

Treatment/prevention of vitamin A deficiency; night blindness; reproductive performance; immune function; wound healing. Fat-soluble vitamin (retinol, retinyl acetate/palmitate). Mechanism: retinol oxidized to retinoic acid → binds nuclear retinoic acid receptors (RAR/RXR) → regulates gene transcription for cell differentiation, growth, immune function, and vision (rhodopsin synthesis). Required for corneal epithelial integrity, reproductive function, and immune competence. Key information Fat-soluble vitamin supplement. Injectable or topical. Toxic in overdose — vitamin A toxicosis (bone malformations, skin changes). Do not exceed recommended dose. IM injection: deep IM.

Oral: mix into feed. Administer with food to reduce GI adverse effects. Injectable (oil-based): administer IM; warm to room temperature before injection. Administer as directed — do not exceed recommended dose (hypervitaminosis A risk). Store at room temperature; protect from light. If a dose is missed Administer as soon as you remember. If it is almost time for the next scheduled dose, skip the missed dose and resume the normal schedule. Never double up doses to make up for a missed one.

Hypervitaminosis A (overdose): bone fragility (cervical spondylosis in cats), alopecia, desquamation, hepatotoxicity, teratogenicity. GI: vomiting, anorexia (overdose). Safe at recommended supplemental doses.

For animals Hypervitaminosis A with excessive supplementation: cervical spondylosis in cats (irreversible spinal changes), bone fragility, alopecia, hepatotoxicity. Avoid in pregnant animals. at high doses (teratogenic). Do not supplement vitamin A in animals with adequate dietary intake. For people handling this medication Wash hands thoroughly with soap and water after handling. Avoid contact with eyes; if contact occurs, flush with water for 15 minutes and seek medical attention. Keep out of reach of children. If accidental ingestion occurs, contact Poison Control (1-800-222-1222). Vitamin A — avoid ingestion of concentrated supplements (hypervitaminosis A). Keep out of reach of children. Pregnant women and women of childbearing age should avoid contact. High-dose vitamin A is teratogenic. Keep out of reach of children.

Contact your veterinarian. Fat-soluble vitamin overdose accumulates — vitamin A toxicosis causes bone malformations, skin changes, and liver damage. Chronic vitamin D excess causes hypercalcemia. Contact your veterinarian, a veterinary emergency clinic, or the ASPCA Animal Poison Control Center (888-426-4435) immediately. Do not induce vomiting unless specifically directed by a veterinary professional.