A cheap, legal alternative to amphetamine sulphate (speed, Dexedrine, …) for insufflation.
1 pack of 12 pseudoephedrine tablets (e.g., decongestants such as Sudafed (these have a coating which can irritate the nasal passage), Actifed (preferred), or Boots own-brand; beware the shop-floor versions, these contain phenylephrine which has no pharmacodynamic properties but can’t be used in the synthesis of meth, you want the version with pseudoephedrine hydrochloride, only available over-the-counter)
24 New Era Mineral Salts Q tablets (available online)
Make sure everything is bone-dry before you begin. Grind all the tablets together in a pestle with a mortar (preferably a stone, not wood, one). Scrape it out into an airtight container (such as a zip-lock baggy).
In total there should be 12 × 60 mg = 720 mg of pseudoephedrine in powder weighing about 3.6 g, giving the equivalent of 20% pure amphetamine sulphate, i.e., cut 4:1, which is about street average.
From Wikipedia: “The euphoric and locomotor-stimulating effects of amphetamine are dependent upon the magnitude and speed by which it increases synaptic dopamine and norepinephrine concentrations in the striatum.”
And: “[Ephedrine] is a CNS stimulant similar to amphetamines, but less pronounced, as it releases noradrenaline and dopamine in the substantia nigra.”
Both amphetamine and ephedrine have been and are prescribed as decongestants, anti-depressants, and for weight loss.
New Era Mineral Salts Q contain biotin which “contributes to the maintenance of normal mucosal membranes”. They also contain potassium and sodium salts which is useful if you take a lot of amphetamine/ephedrine since the potassium will mitigate against hypokalemia and the sodium compensates for that lost through sweat. Mainly, though, they make it easier to snort.