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Pseudoephedrine / Terfenadine Dosage

Applies to the following strengths: 120 mg-60 mg

Usual Adult Dose for Allergic Rhinitis

Dosage: 1 tablet (120 mg-60 mg) by mouth 2 times a day.

Usual Adult Dose for Nasal Congestion

Dosage: 1 tablet (120 mg-60 mg) by mouth 2 times a day.

Liver Dose Adjustments

1 tablet (120 mg-60 mg) once a day.
Caution: Liver disease will increase the risk of cardiotoxicity with terfenadine.

Dose Adjustments

Pseudoephedrine is eliminated by the kidney and may accumulate in patients with renal dysfunction. Patients with renal dysfunction should be monitored for signs and symptoms of toxicity when using pseudoephedrine.


Pseudoephedrine is partially removed by hemodialysis, therefore doses should be given following dialysis sessions.

Other Comments

pseudoephedrine-terfenadine was withdrawn from the market in 1998.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.