LONGECITY

Looking for any reliable source of carbidopa (without levodopa) available in the US. I get pretty noticeable peripheral side effects from 5HTP (mostly gut pain), so am interested in trying the combo. Searches here and on the broader internet have turned up zip.

PM me if you're shy about sharing here. Thanks.

ETA: Here's a couple more interesting potential benefits of carbidopa:

Carbidopa, a drug in use for management of Parkinson disease inhibits T cell activation and autoimmunity.

Carbidopa is an activator of aryl hydrocarbon receptor with potential for cancer therapy.