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Sildenafil Citrate 139755-83-2 (Steroidal) CAS#: 139755- ... doctor. The dose of
sildenafil for erectile dysfunction is 25
mg to 100
mg taken not more than ... usually recommended to start with a dosage of
50 mg and then lower or raise the dosage as ... (25,
50, and 100
mg), The dosage for pulmonary arterial hypertension (Revatio) is one 20
mg tablet three times a ...