National Toxicology Program

National Toxicology Program

Testing Status of QT drugs (terfenadine) - M040074


CASRN: 50679-08-8

Formula: C32-H41-N-O2

Synonyms/Common Names

  • Seldane (QT drugs)
  • Terfenadine (QT drugs)

Known Uses

Anti allergic agent; antihistaminic agent; no longer on the market

Chemical Properties

Toxicity Effects (HSDB)

Short-Term Toxicity

  • 1 day (Per os (Capsule))  (C20538F)  Completed 
    • Dog: Beagles
    • Dose: 0, 5, 20, 50, OR 100 MG/KG; 6/GROUP.
  • 13-Week (Per os (Capsule))  (C20538F)  Completed 
    • Dog: Beagles
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.