Is it ok to smoke weed while i'm on metadate?

No: Weed will undo the therapeutic effects of the metadate.

Weed: That would defeat the purpose of using metadate in the first place. The combination can make you irritable & lose focus.

Metadate + Cannabis: Combining Cannabis & Metadate can impact cardiovascu-lar function, subjective effects, & performance. See: https://pubmed.ncbi.nlm.nih.gov/25175495/ * This may also trigger mania. See: https://www.longdom.org/open-access/cannabis-and-methylphenidateinduced-manic-symptoms-2161-0495-1000254.pdf

See below: As long as you dont mind cancelling any benefit you may be deriving from the metadate.

Cannabis & Metadate: Combining Cannabis & Metadate can impact cardiovascu-lar function, subjective effects, & performance. See: https://pubmed.ncbi.nlm.nih.gov/25175495/ * This may also trigger mania. See: https://www.longdom.org/open-access/cannabis-and-methylphenidateinduced-manic-symptoms-2161-0495-1000254.pdf