"wait 6 weeks but it helps before then too. i have been on it at 25 mg a day for a year.  just recently i have been in a traumatic situation and i ramped up the dosage to 40/50 mg to help. it has been a huge help and i only have taken 2 ativan during this three week ordeal. i think buspar for me makes me tired when i am not anxious and is a huge help when i am. it seems to cut the adrenaline levels and that is what works for me without the sexual side effects that ssris have."