Medically reviewed by Drugs.com. Last updated on Dec 7, 2022.
Initiate treatment at 5 mg once daily, with or without tadalafil 20 mg once daily. At 4-week intervals, either the dose of Letairis or tadalafil can be increased, as needed and tolerated, to Letairis 10 mg or tadalafil 40 mg.
Do not split, crush, or chew tablets.
Pregnancy Testing in Females of Reproductive Potential
Initiate treatment with Letairis in females of reproductive potential only after a negative pregnancy test. Obtain monthly pregnancy tests during treatment [see Use in Specific Populations (8.3)].
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