It's probably the stress. I don't think Diovan "wears off" over time, but then I am new to the drug, so you or Lenin might know more. Have you talked to the dr about Diovan HCT?
Today did the trick for me. I scheduled a dr appt for this morning b/c the Diovan didn't seem to be working and I noticed a slight increase in bp. This morning, I got a couple readings below 110 systolic. After some morning "decaf" coffee (which still has caffeine) and a sugary breakfast bar, it went up to around 114-116. Post lunch, about 6 hrs after taking the drug (when it's supposed to have maximum effect), systolic was 102, the lowest I've ever seen it. Today marks 1 week since I upped the dosage. Hmm...
It might also have something to do w/ stress for me - been very stressed at work lately and my wife and I hopped in the sack last night
Helped me to totally unwind !
Also crediting the Lord Jesus, the great physician, for the medical help.
I pray the good results aren't a fluke.