Have a Question? Call Us: (855) 876-3060
This medication requires a prescription from your doctor.
Levodopa (L-Dopa) has been used for many years for treating Parkinson’s disease. It is derived from mucuna pururiens, also called velvet bean – a plant that contains high levels of L-dopa. In addition to its benefits in treating Parkinson’s disease, levodopa is also used for testing levels of growth hormones in children. It has been shown to be one of the most effective tests of growth hormone release.
Levodopa is a precursor of dopamine and stimulates the release of growth hormone. For diagnostic purposes in testing growth hormone levels, levodopa is given in a single dose of 125mg-500mg (about 10mg/kg in children or 500mg for adults).The dose should be administered in the morning after the patient has fasted overnight. Blood levels of growth hormone should be tested at baseline, 30, and 60 minutes. Sometimes additional tests are taken at 90 and 120 minutes.
When levodopa is used for treating Parkinson’s it is always combined with carbidopa to reduce nausea. The addition of carbidopa is not necessary when levodopa is being used for diagnostic purposes. The single dose of L-dopa does not produce significant adverse effects, with most patients only experiencing temporary nausea.