Still available in a time-warp apothecary on Leningradskoye Shosse, right side of heading out of town, after Metro Voykovskaya but before the river. Details soon. 70 roubles ($2.20) each. If you want to commit suicide by having your blood sucked out you’ll need $2000 worth of them but that’s another story. The exact address is coming up. Tried these myself. Heart beat and pressure comes to the norm in no time but I tend to think part of the reason is women who happen to witness the scene screaming. As a card-carrying sadist I find that satisfying, and my BP returns to norm. I also recall seeing blood-letting offered by Muslim old-timers.