Im on mdpv and have a bit of paranoia i took 2mg phenazepam orally using a scale accurate to 1mg 9 hours ago.. is it safe to redose with 2mg now?
How expensive is your scale?
If your working with something like the standard $20 mg scale, or anything under ~$200, you took anywhere from 1-4mg of phenazepam, as they drift a few mgs. Even the most accurate cheap mg scales are really only .003g scales. For something active (& long lasting) at 500mcg like phenazepam, thats just a terrible idea to weigh out individual doses from powder using a cheap scale.
The only safe way to measure out individual doses of phenaz is to use volumetric dosing with either propylene glycol, or a dryish alcohol. Re-dosing 9 hours later is not really a good idea either, as the phenazepam should not be metabolized much at all at that point. its half life is a few days for most people. That means a few days later your still half as high from the dose you took days ago.
Personally, i would just put down the pv, put away the phenazepam, and come down. Re-dosing on either while already on an unknown amount of phenazepam is just a blackout/psychotic break waiting to happen. If you do redose w/ the phenaz, don't weigh out individual doses. You WILL end up blacking out doing that. If you must, try and get some pre-measured benzos to help with the crash. Etizolam, valium, clonazepam, etc. Just DO NOT DOSE INDIVIDUALLY WEIGHED DOSES OF PHENAZ. Do a bit of googling about phenazepam blackouts and you'll realize how risky that is.
If you can't get ethanol, try isporopyl alcohol, just make sure it evaporates cleanly. Weigh out 50mg of phenazepam, and dissolve it in 25ml of a dry as you can get alcohol (90% iso or everclear). Heat if necessary to get it all dissolved. Measure out 1ml with a luerlock oral dosing syringe or another small syringe accurate to .1ml. You can get these at most pharmacy's, just as for them to measure out liquid medication for a small child. You shouldn't get any funny looks.
Take .5ml and evaporate it on a thick piece of paper (making blotters), or something else edible that will absorb all the alcohol. You now have accurate 1mg phenazepam dosage units.
An easier route is to just get some propylene glycol, its cheap and easy to find on the internet, and use that in the same manner, but since its food safe, just measure out .5ml and squirt it in your mouth, then wash down with water.
Please do not fuck around with weighing out single dosages of phenazepam powder. The majority of people who have tried that end up blacking out for days on end (phenazepam will stay in your system for days, longer than valium ime). Combined with PV binging, i can't even imagine how risky that is.