"i started out on a quarter of a 50 mg trazadone tablet every other night at bedtime.  i did this for a week then increased to a quarter tab every night.  after two nights of one quarter tablets i started waking with a stuffy nose and a headache.   morning 3, i was in a full blown migraine and had to take zomig.  i have attempted this exact process 4 times now with weeks in between (no trazadone) to make sure it is a side effect of the medicine. now, i am sure trazadone is causing the headaches and i never have taken more than 1/4."