It's got a scaled plunger. Dial yourself in for 100kg, unless your a fat cunt, then go a little above your weight. I.e you probably have other bugs that will uptake some, so a little extra is good.

It's used by hundreds of millions of people weekly with no ill effects in poverty strickened countries. Do not use alcohol with it, it increases the uptake of the drug and adds to your liver count.

Daily for three days. Wait a week and repeat.