Pure lorazepam is a whitish powder. As a medicine, it is dispensed in tablets containing from 0.5 to 2.0 mg of lorazepam. The drug can also be given as an injectable liquid, intramuscularly or intravenously.
Though relatively safe, there are many contraindications and cautions for this drug; it should only be used as prescribed by a medical doctor and in accord with all physician and manufacturer guidelines. Two cautions in particular are worth noting: the drug may cause death if taken in excess with alcohol, and it may harm the unborn child.