On Buspar (buspirone) for over a week, less anxiety but more anger, this is unlike me. Will this side effect pass or should I stop taking?

Buspar (buspirone) Very common effect when Buspar (buspirone) is started, eases up with time, especially as it seems to be working for the anxiety. Keep your doctor informed of any and all side effects.
Anger/hostility. Buspar (buspirone) can take 3-6 weeks before full anti-anxiety effects appear. The most common side effects are dizziness, drowsiness & headache. Agitation & hostility can happen more infrequently, and some people can get an increase of anxiety. Could your life situation be arousing anger too? Please work with your prescribing physician on this, so you can get the best results. S/he would want to know.