Originally Posted by kiwi33

I don't have PD so L-Dopa is not on my list of medications.

L-Dopa is converted, in a one-step enzyme-catalysed reaction, into dopamine.

The fact that L-Dopa as a medication is taken in solid (possibly crystalline) form does not matter. Once it goes into solution in body fluids the enzyme which converts it into dopamine does not "know" that it was ingested in a solid crystalline/amorphous form.