4-Hydroxypiperidines

Nadifloxacin (INN, brand names Acuatim, Nadiflox, Nadoxin, Nadixa, Activon) is a topical fluoroquinolone antibiotic for the treatment of acne vulgaris. It is also used to treat bacterial skin infections.

Periciazine (INN), also known as pericyazine (BAN) or propericiazine, is a drug that belongs to the phenothiazine class of typical antipsychotics.