Generic name: treprostinil 0.125mg
Dosage form: tablet, extended release
The information at Drugs.com is not a substitute for medical advice. Always consult your doctor or pharmacist.
Take Orenitram with food. Swallow Orenitram tablets whole; do not crush, split, or chew.
The recommended starting dose of Orenitram is 0.25 mg twice daily (BID) with food, taken approximately 12 hours apart or 0.125 mg three times daily (TID) with food, taken approximately 8 hours apart. Increase the dose to the highest tolerated dose. The recommended increment is 0.25 or 0.5 mg BID or 0.125 mg TID every 3-4 days. If dose increments are not tolerated consider titrating slower.
The appropriate maintenance dose is determined by tolerability.
If intolerable pharmacologic effects occur, decrease the dose in increments of 0.25 mg. Avoid abrupt discontinuation [see Warnings and Precautions (5.1)].
Transitioning from Subcutaneous or Intravenous Routes of Administration of Treprostinil
Decrease the dose of Remodulin while simultaneously increasing the dose of Orenitram. The dose of Remodulin can be reduced up to 30 ng/kg/min per day and the dose of Orenitram simultaneously increased up to 6 mg per day (2 mg TID) if tolerated. The following equation can be used to estimate a comparable total daily dose of Orenitram in mg using a patient's dose of IV/SC treprostinil (in ng/kg/min) and weight (in kg).
Orenitram total daily dose (mg) = 0.0072 × Remodulin dose (ng/kg/min) × weight (kg)
Dose Adjustment in Patients with Hepatic Impairment
In patients with mild hepatic impairment (Child Pugh Class A) start at 0.125 mg BID with 0.125 mg BID dose increments every 3 to 4 days. Avoid use of Orenitram in patients with moderate hepatic impairment (Child Pugh Class B). Orenitram is contraindicated in patients with severe hepatic impairment (Child Pugh Class C) [see Contraindications (4), Use in Specific Populations (8.6), and Clinical Pharmacology (12.3)].
Dose Adjustment for Use with CYP2C8 Inhibitors
When co-administered with strong CYP2C8 inhibitors (e.g., gemfibrozil) the initial dose is 0.125 mg BID with 0.125 mg BID dose increments every 3 to 4 days.
Interruptions and Discontinuation
If a dose of medication is missed, the patient should take the missed dose as soon as possible, with food. If a patient misses two or more doses, restart at a lower dose and re-titrate.
In the event of a planned short-term treatment interruption for patients unable to take oral medications, consider a temporary infusion of subcutaneous or intravenous treprostinil. To calculate the total daily dose (mg) of treprostinil for the parenteral route use the following equation:
|Remodulin (ng/kg/min) =||139 × Orenitram total daily dose (mg)|
When discontinuing Orenitram, reduce the dose in steps of 0.5 to 1 mg per day [see Warnings and Precautions (5.1)].
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