I take 10mg of Buspirone in the morning, and 5mg in the evening. My psychiatrist didn't give me enough refills to last until my next appointment, so I haven't had my morning dose. I read that the half life is 2-3 hours, so it should be out of my system. How long does it take for withdrawal symptoms to set in? Also, if the half life is only 2-3 hours, wouldn't a regimen of at least 3 times per day dose work better? Maybe this is why I'm so anxious in the evening.