Valerian and passiflora are both herbal and reasonably effective though it does depend on severity of symptoms.

I take tricyclics (lofepramine), I think they help a little without turning me into a zombie. I took Trazodone and they knocked me out like a general anaesthetic ! I wasn't anxious but barely conscious either.

Remember that the prescription meds for anxiety can sometimes be difficult to come off, lead to dependence.
Be very wary of SSRI's. They made me like a cat on a hot tin roof !