Thought I'd weigh in on this subject. I believe that narcotics/opioid meds are a trigger for my migraines. Gall bladder surgery in 2010, 3 days in the hospital =3 days of migraine. Luckily, the Imitrex was readily available in injection form. Godsend! Since then I've had 3 occasions when oxycodone or percocet were prescribed. Had to stop those meds because, in all cases, they triggered migraines.