"i have been taking serax/oxazepam for 30 years for anxiety/panic attacks, works great! i started out on 10mg then after a few years was switched to 15mg. the past year or so i have been having trouble sleeping so the dr. put me on 30mg to take only at night before bed which i do and it works great for sleep. so, i take the 15mg when i need them for anxiety and the 30mg only at night."