Homactin AA Plus 8.5 Fluid Ounce, 186 Calories Per Carton. For the dietary management of Homocystinurea (HCU). Dispensed by prescription. Homactin AA Plus is a ready-to-drink metabolic formula product for Homocystinurea patients, over 1 year of age. Homactin contains an advanced fortification blend. Product comes in a 250 mL carton. For the dietary management of Homocystinuria (HCU). Use as directed by physician. Must be administered under medical supervision only.