Can someone with a masters of science degree prescribe medication?

Technically speaking, anyone can "prescribe" medication ("You should take some aspirin"). Whether it is legally permissible for a pharmacist to fill that prescription or not is a different issue.

In general, "prescription medications" can only be dispensed if the prescription was written by a physician (a medical doctor or a doctor of osteopathy). In many jurisdictions other degrees confer limited prescribing powers... for example, a dentist (doctor of dental surgery) is usually permitted to prescribe painkillers and antibiotics.

Nowhere that I know of is the prescription of someone with a masters of science degree and no other qualifications treated any differently, legally, than one written by a high school dropout.