Tinctura Toxicodendri.—Tincture of Poison Oak.
Related entry: Rhus Toxicodendron (U. S. P.)—Rhus Toxicodendron
SYNONYM: Tincture of Rhus Toxicodendron.
Preparation.—Take of fresh leaves of poison oak, 4 ounces; alcohol, 3 fluid ounces. Macerate for 14 days; express and filter under cover.
Action, Medical Uses, and Dosage.—This tincture may be used for all the purposes for which the poison oak is given, in the dose of from a fraction of a drop to 5 drops, in water. It should be kept in vials, well stoppered, as its active principle becomes dissipated on exposure.