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- Risk categories for antimicrobial agents known to have an association with TdP[1]
- Drugs with known TdP risk
- Azithromycin (Zithromax®, Zmax®)
- Chloroquine (Aralen®)
- Ciprofloxacin (Cipro®, Cipro-XR®, Neofloxin®)
- Clarithromycin (Biaxin®, Prevpac®)
- Erythromycin (A/T/S®, Akne-Mycin®, Emgel®, Ery-Tab®, Eryc®, Erycette®, Eryderm®, Erygel®)
- Fluconazole (Diflucan®, Trican®)
- Halofantrine (Halfan®)
- Levofloxacin (Levaquin®, Tavanic®)
- Moxifloxacin (Avelox®, Avalox®, Avelon®)
- Pentamidine (Pentam®)
- Sparfloxacin (Zagam®)
- Drugs with possible TdP risk
- Atazanavir (Reyataz®)
- Bedaquiline (Sirturo®)
- Dihydroartemisinin-Piperaquine (Eurartesim®)
- Foscarnet (Foscavir®)
- Gatifloxacin (Tequin®)
- Gemifloxacin (Factive®)
- Norfloxacin (Noroxin®, Ambigram®)
- Ofloxacin (Floxin®)
- Rilpivirine (Edurant®, Complera®, Eviplera®)
- Roxithromycin (Rulide®, Xthrocin®, Roxl-150®, Roxo®, Surlid®, Rulide®, Biaxsig®, Roxar®, Roximycinv®, Roxomycin®, Rulid®, Tirabicin®, Coroxin®)
- Saquinavir (Invirase®(combo))
- Telavancin (Vibativ®)
- Telithromycin (Ketek®)
- Drugs with conditional TdP risk
- Amantadine (Symmetrel®, Symadine®)
- Hydroxychloroquine (Plaquenil®, Quineprox®)
- Itraconazole (Sporanox®, Onmel®)
- Ketoconazole (Nizoral®, Sebizole®, Ketomed®, Keton®)
- Metronidazole (Flagyl® and many others)
- Nelfinavir (Viracept®)
- Posaconazole (Noxafil®, Posamol®)
- Quinine sulfate (Qualaquin®)
- Ritonavir (Norvir®)
- Telaprevir (Incivek®, Incivo®)
- Voriconazole (VFend®)
- Drugs to be avoided by congenital Long QT
- Torsades de pointes risk stratification schedules for antimicrobial agents[2]
- Schedule I (Highest TdP risk, potent IKr blockers, TdP risk >1%)
- Not available
- Schedule II (Significant risk for TdP, particularly when coadministered with CYP inhibitors, relatively potent IKr blockade)
- Not available
- Schedule III (Risk for TdP is described, IKr blockade, particularly when coadministered with CYP inhibitors)
- Schedule IV (Minimal risk for TdP, case reports of TdP, mild IKr blockade, may have CYP interactions)
- Schedule V (Questionable or minimal risk for QT interval prolongation or TdP)