Girlofsteel,
I've never heard of Avazide...Are you sure it's not Avalide that you've been taking?
If it's Avalide, this drug IS Avapro but in combo with a thiazide diuretic (hydrochlorthiazide).
It should reach its full blood pressure lowering effect after about 4-6 weeks, however you should have seen a substantial response of some kind by now ( usually within one or two weeks of commencing therapy).
zuzu xx