orphenadrine (Norflex) (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

PRESCRIBED FOR: Orphenadrine is used to treat acute muscle aches or spasms. It is usually combined with rest, physical therapy, and other treatment.

SIDE EFFECTS: Side effects of orphenadrine include:

Rare but serious side effects include aplastic anemia and life threatening allergic reactions.




  • Orphenadrine citrate tablets: 100 mg extended release
  • Orphenadrine citrate solution for injection: 30 mg/ml

STORAGE: Tablets should be stored at room temperature, between 15 C and 30 C (59 F and 86 F).

DOSING: The recommended dose is one 100 mg tablet by mouth twice daily in the morning and evening.

DRUG INTERACTIONS: Orphenadrine may cause an increase in blood levels of dofetilide (Tikosyn) by decreasing its breakdown and elimination by the liver.

Medically Reviewed by a Doctor on 6/9/2015

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