This is an over the counter product - it does not require prescription.
Dogs 40-90 lbs . . . . . . . 1 tablet per day
Dogs 90 lbs and over . . . 2 tablets per day
Indications: For animals displaying behavioral signs of cognitive decline or for other conditions related to oxidative stress and aging.
Acetyl-L-Carnitine, Alpha-Lipoic Acid (dog formula), Bioflavanol,
N-acetyl-Cysteine, Taurine (cat formula), Vitamin E, Thiamine,
Riboflavin, Niacin, Vitamin B6, Vitamin B12, Folic Acid, Soy Lecithin
(source of phosphatidylserine), Omega-3 Fatty Acids, Cranberry,
Bilberry, Sage, Rosemary, Spirulin