rac-N-Methyl-frovatriptan-d6 Oxalate is the isotopic analog of rac-N-Methyl-frovatriptan Oxalate. rac-N-Methyl-frovatriptan Oxalate is a metabolite of Frovatriptan (F768505). It is a Serotonin 5-HT1B/1D receptor agonist. It is a triptan drug for the treatment of migraine headaches. Frovatriptan causes vasoconstriction of arteries and veins that supply blood to the head.