Weaning off migraine meds. Advise.

I have migraine since the past 1 year or so. My doctor has prescribed me Topaz 25mg for morning dose and Topaz 50 mg for the night dose. He has also prescribed me with a SOS medication., Vasograin. Now, I don't mean to be condescending or a know it all, but I'm an R&D Officer in a Biopharma, so I understand that Vasograin is not safe for migraine. There are many safer medications available out there. I've tried to reason with with my doctor, but he said it's safe to take it. But my episodes are like 4-5 times a month and each episode goes on for about 2 days requiring atleast 2-3 doses of Vasograin. I'm already experiencing it's side effects of twitching, dystonia and akasthia. also feel medication overuse also develops an increase in the condition when not treated properly. But, at the end I'm not a DOCTOR. As a patient in need of a good doctor, I am humbly asking if any kind doctor can help me in weaning off these meds for good and cure my condition. Kindly advise.