If you mean would bleach remove heroin from a urine sample the short answer is no heroin is a drug not a bacteria or virus if bleach was added to urine it would definitely not take the heroin out of the urine if it were present.
no, just stop doing it.
Stop taking heroin.
8 hrs?
Heroin will be out of most people's systems in 1 to 3 days. Four days will be beyond the threshold, since Heroin is water-soluable, so it will not show in your urine.
No, opium and heroin are different substances and will show up as separate substances in a urine test. Heroin is derived from opium, but they have distinct chemical compositions that can be distinguished in drug tests.
immeadiatly
No heroin can not be flushed from one urine, it goes to the brain.
yes
put simple, heroin
yes
I've never actually tried it but I have heard on numerous occasions that adding citric acid to urine can rid it of heroin, be careful though because I'm not 100% sure.