Because Parkinsonâs disease symptoms are due to a deficiency of the brain chemical dopamine, the main drug treatments help increase dopamine levels in the brain. Levadopa, usually combined with carbidopa, is the standard drug treatment.
Here are all the possible meanings and translations of the word poison-ivy. Wiktionary(0.00 / 0 votes)Rate this definition: poison-ivy(Noun) A woody vine plant in the family Anacardiaceae well-known for its ability to produce urushiol, a skin irritant that causes an itching rash for most people.
Definition of ivy. plural. ivies. 1 : a widely cultivated ornamental climbing or prostrate or sometimes shrubby chiefly Eurasian vine (Hedera helix) of the ginseng family with evergreen leaves, small yellowish flowers, and black berries. 2 : any of several climbing plants (such as Virginia creeper ) resembling ivy; especially : poison ivy.