Tinctures

Laudanum is a tincture of opium containing approximately 10% powdered opium by weight (the equivalent of 1% morphine). Laudanum is prepared by dissolving extracts from the opium poppy (Papaver somniferum) in alcohol (ethanol).

thumb|right|upright|A tincture prepared from Salix alba|white willow bark and [[ethanol, containing salicin (from which salicylic acid-based products like aspirin are derived)]]

antiseptic solution rubbed on skin before surgical operations

alcoholic solution of Cannabis