• Can HYDROCODONE-CHLORPHENIRAM used as a cough medicine, also have a slight muscle relaxant effect? My daughter has had muscle spasms on the right side of her face, jaw and tongue since she was four years of age, now 23 and has been treated with Zonegran and Topamax and now Trokendi (slow release Topiramate). While on the above cough medicine she went 8 days w/o a spasm. Normal, with meds, to have at least 1-3 a day. I thought this was a general chat. Never mind.