"currently at 200mg to control insomnia and migraines. only small side effect is occasional slight dizziness. other than that, now that i am on correct dosage, minimal side effects and complete relief from issues.. as an aside, was unable to get refill for a week once and experienced extreme, worsening withdrawal symptoms: constant, mild headaches. diarrhea. vomiting. debilitating nausea, dizziness and vertigo. runny nose. complete loss of appetite. feeling dehydrated. constant panic attacks: uncontrollable anxiety, racing heart, profuse sweating and feeling dehydrated and like i&#039;m gasping for air. i&#039;ve had remarkable success with the drug, but i caution anyone considering stopping to confer w their dr and wean off rather than cold turkey."