PEA is prescribed as a medical-food supplement Known as ultra-micronized PEA, the drug is a naturally occurring fatty acid similar to an endocannabinoid, one of a suite of molecules found in cannabis that targets endocannabinoid (CB2) receptors in the human body. The company holds exclusive worldwide rights to the drug that has been used for 40 years to fight respiratory infections.-- expect in Italy and Spain, where PEA is prescribed as a medical-food supplement to treat chronic inflammation.