Hi,
I’ve heard about a medication under development that is under trial to treat Parkinson’s Disease. It’s called Levodopa and is injected into the brain and is converted to Dopamine.
I read that Levodopa is combined is with Carbidopa (Lodosyn) which protects Levodopa from early conversion to Dopamine outside the brain. This prevents or lessens side effects such as nausea.
Any further information on this treatment would be appreciated.