An add on from the Discovery Bible...
5331 pharmakeía (from pharmakeuō, "administer drugs") – properly, drug-related sorcery, like in the practice of ancient magical-arts (A. T. Robertson).
1.
5331/pharmakeia ("drug-related enchantments") operates by "the art of mind-games," using hypnotic sorceries and occultic incantations ("formulas") etc. to sway the mind. These tactics were often "enhanced" (practiced with) the use of drugs (Wm. Barclay).
[5331 (pharmakeia) is the root of the English terms, "pharmacy," "pharmaceutical."]
2.
5331/pharmakeia ("magical arts, witchcraft") is "'the practice of drugging'; hence, especially, from the use of mysterious liquids, sorcery, witchcraft, inextricably combined with idolatry" (Souter).
[This "magic" focuses on "the use of certain potions or drugs and the casting of spells" (L & N, 1, 53.100).]
The stock-and-trade of false-teachers includes "religious incantations and enchantments" to manipulate people into following them (swallowing their theology). These "mind-games" characteristically over-promise temporal things from God that are not in fact "guaranteed" (promised) in the Bible – especially distorting the meaning of faith (4102/pístis, see there).
Reflection: The Church must beware of "hyper-faith teachers" and others who "drug people" into adopting illusions – supposedly which can manipulate God to give them what they want by "refusing to doubt." These false teachers twist the meaning of faith – making it the same as human believing to supposedly become the tool to "claim unlimited temporal blessings" at will (so long as the aspiring magic-practioner "does not doubt").