Hello, Mucuna IS a drug, herbal or not. It is used in India to treat PD, and clinical studies show it works 3 times better than sinemet. You are taking sinemet type drug, so I wonder why your surprised your neuro suggested sinemet.

Mucuna probably contains something similar to carbidopa, because the same amount of l-dopa in mucuna, compared with sinemet, resulted in three times better response. Carbidopa was not needed with mucuna.

It will probably cause dyskinesias, like sinemet, so don't take it and assume because it's natural, it has no long term side effects.