1. Amitriptyline HCL is supplied in a 10mL vial. The label reads 10mg/mL. How many mL should be administered per dose if 20mg IM is prescribed? 2. Tetracycline hydrochloride is available in vials containing 500mg/2mL. How many mL should be administered if 0.25g is ordered daily? 3. The health care provider orders: Bricanyl 0.25mg subQ bid. The ampule is labeled 1mg/mL. How many mL will you draw up?.