"i take 100 mg &quot;as needed&quot; for chronic neck and shoulder pain after dual afdc surgery which left me with some major nerve damage.  it doesn&#039;t totally relieve my pain, but it makes it tolerable. one dose makes me nauseous with or without food in my stomach. if i have a bad neck day and take 2 doses i will spend the night throwing up so i never take 2 doses any more."