Why can't my general practitioner prescribe metformin or clomid (clomiphene)?i have pcos off pill since january no periods

No restriction: Your general practitioner should be able to provide you these medications. If he/she is uncomfortable using them, then see a specialist.

Scope of Care.: Depends upon why they are prescribing the med. In general it is not wise for a gp to prescribe meds out of their area of expertise or practice. Using metformin to treat pcos sounds like a good gp fit, but using Clomid (clomiphene) may be a step too far.