Erectile Dysfunction
- PO (Adults): Viagra: 50 mg taken 1 hr before sexual activity (range 25–100 mg taken 30 min–4 hr before sexual activity); not more than once daily; Concurrent use of Viagra with alpha-blocker antihypertensives: do not use 50–100 mg dose within 4 hr of alpha blocker, 25-mg dose may be taken anytime.
- PO (Geriatric Patients
65 yr or with concurrent enzyme inhibitors): Viagra: 25 mg taken 1 hr before sexual activity (range 25–100 mg taken 30 min–4 hr before sexual activity); not more than once daily.
Hepatic Impairment
- PO (Adults): Viagra: 25 mg taken 1 hr before sexual activity (range 25–100 mg taken 30 min–4 hr before sexual activity); not more than once daily.
Pulmonary Arterial Hypertension
IV therapy is indicated for patients unable to take PO therapy- PO (Adults): Revatio or Liqrev: 20 mg 3 times daily; may ↑ in 20-mg increments to 80 mg 3 times daily based on clinical response and tolerability.
- PO (Children 1 yr and >45 kg): Revatio: 20 mg 3 times daily; may ↑ to 40 mg 3 times daily based on clinical response and tolerability.
- PO (Children 1 yr and 21–45 kg): Revatio: 20 mg 3 times daily.
- PO (Children 1 yr and
20 kg): Revatio: 10 mg 3 times daily. - IV (Adults): Revatio: 10 mg 3 times daily.
