Table 1.

Examples of drugs repositioned to a new antimicrobial classification.

Therapeutic	Original class	Repositioned class	Approval year
Amphotericin B	Antifungal	Antiparasitic	1997 (Meyerhoff, 1999)
Doxycycline	Antibiotic	Antimalarial	Off-label (Tan et al., 2011)
Eflornithine	Antitumour	Antiparasitic	1990 (Simarro et al., 2012)
Miltefosine	Antitumour	Antiparasitic	2014 (Smorenburg et al., 2000)
Paromomycin	Antibiotic	Antiparasitic	1994 (Ben Salah et al., 2013)
Zidovudine	Anticancer	Antiviral	1987 (Yarchoan et al., 1986)