Erectile Dysfunction Pill: Dosage

The recommended dose for Viagra is 50 mg, although your doctor may adjust this dose to 100 mg or 25 mg, depending on your needs. The recommended dose for Levitra and Cialis is 10 mg. However, your doctor may adjust this dose to 20 mg if 10 mg is insufficient. A lower dose of 5 mg is available for patients who take other medicines or who have conditions that may decrease the body's ability to use this erectile dysfunction pill. Levitra is also available in a 2.5 mg dose.