I've been on diazepam since mid-2012. My psychiatrist scripted 10 mg a day only. When I first took, all I needed was 10 mg to get that calm, anxiolytic effect. However, these days diazepam has virtually no anxiolytic effect at all. I recall reading that sedation decreases with tolerance, but the anxiolytic effect is still present. I must be an anomaly since no matter what dose I take, all it does is sedate me, making me sleepy. Is there a way to get back that anti-anxiety effect?