Although the bark, leaves, and buds of Poplar all contain the active ingredient salicylic acid, only the buds are considered unquestionably effective. They are used for frostbite and sunburn, in addition to wounds and burns. The bark and leaves are used to treat pain, prostate problems, bladder complaints, and rheumatism. In homeopathic medicine, Poplar is prescribed for colds and disorders of the urinary system.
Salicylic acid has anti-inflammatory and antibacterial properties.
It relieves pain and eases spasms. Poplar also contains zinc, which some researchers feel may account for its beneficial effects on the urinary system. Special Cautions External Poplar preparations can cause allergic skin reactions. There are no known drug interactions associated with the use of Poplar. No information is available.