Easily confused drug names

Look-alike / sound-alike pairs from the FDA Name Differentiation Project. This is the official tall-man list, not the full ISMP LASA list.

A pair here means the names can be mistaken for each other; it does not mean the drugs are interchangeable.

FDA tall-man pairs

Pair		Tall-man spelling
乙酰唑胺 Acetazolamide	Acetohexamide Acetohexamide	`acetaZOLAMIDE` / `acetoHEXAMIDE`
盐酸安非他酮 Bupropion	盐酸丁螺环酮 Buspirone	`buPROPion` / `busPIRone`
卡铂 Carboplatin	顺铂 Cisplatin	`CARBOplatin` / `CISplatin`
盐酸氯丙嗪 Chlorpromazine	氯磺丙脲 Chlorpropamide	`chlorproMAZINE` / `chlorproPAMIDE`
Clomiphene Clomiphene	盐酸氯米帕明 Clomipramine	`clomiPHENE` / `clomiPRAMINE`
Cycloserine Cycloserine	Cyclosporine Cyclosporine	`cycloSERINE` / `cycloSPORINE`
柔红霉素 Daunorubicin	盐酸多柔比星 Doxorubicin	`DAUNOrubicin` / `DOXOrubicin`
茶苯海明 Dimenhydrinate	盐酸苯海拉明 Diphenhydramine	`dimenhyDRINATE` / `diphenhydrAMINE`
盐酸多巴酚丁胺 Dobutamine	多巴胺 Dopamine	`DOBUTamine` / `DOPamine`
格列吡嗪 Glipizide	Glyburide Glyburide	`glipiZIDE` / `glyBURIDE`
Hydralazine Hydralazine	Hydroxyzine Hydroxyzine	`hydrALAZINE` / `hydrOXYzine`
醋酸甲羟孕酮 Medroxyprogesterone	甲泼尼龙琥珀酸钠 Methylprednisolone	`medroxyPROGESTERone` / `methylPREDNISolone`
醋酸甲羟孕酮 Medroxyprogesterone	Methyltestosterone Methyltestosterone	`medroxyPROGESTERone` / `methylTESTOSTERone`
甲泼尼龙琥珀酸钠 Methylprednisolone	Methyltestosterone Methyltestosterone	`methylPREDNISolone` / `methylTESTOSTERone`
Migalastat Migalastat	Miglustat Miglustat	`migALAstat` / `migLUstat`
盐酸尼卡地平 Nicardipine	硝苯地平 Nifedipine	`niCARdipine` / `NIFEdipine`
醋酸泼尼松龙 Prednisolone	醋酸泼尼松 Prednisone	`prednisoLONE` / `predniSONE`
利培酮 Risperidone	罗匹尼罗 Ropinirole	`risperiDONE` / `rOPINIRole`
磺胺嘧啶 Sulfadiazine	Sulfisoxazole Sulfisoxazole	`sulfADIAZINE` / `sulfiSOXAZOLE`
Tolazamide Tolazamide	甲苯磺丁脲 Tolbutamide	`TOLAZamide` / `TOLBUTamide`
曲马多 Tramadol	盐酸曲唑酮 Trazodone	`traMADol` / `traZODone`
Vinblastine Vinblastine	硫酸长春新碱 Vincristine	`vinBLAStine` / `vinCRIStine`

Source: FDA Name Differentiation Project (content current as of 2026-06-12; US Government work). Only the 22 officially re-publishable pairs from the FDA list are included; the copyright ISMP/ECRI “List of Confused Drug Names” is not copied. Single names in the FDA list without a pair (hydromorphone, mitoxantrone) are not listed. A pair is a warning about names, not a statement that the drugs are equivalent.