When does the start move to 20 or 5?
The label allows an increase to 20 mg or a decrease to 5 mg after effect and side effects are known.
Headache and flushing can climb with the milligram. Two clean attempts beat a one-night verdict.
Stimulation is not a dose substitute
Sexual stimulation is required on every rung. A quiet 10 mg on the couch is not a reason to jump to 20.
Read the stimulation scan before you ask for a climb.
What milligram opens most adults?
For most patients the recommended starting dose is 10 mg. That is the sentence this scan holds.
Skip a first 20 mg because a review called it 'the real Levitra.' Higher exposure is a later step.
Inhibitors own the 2.5 mg tablet
Ritonavir and cobicistat cap a single 2.5 mg swallow in 72 hours. Other strong inhibitors cap 2.5 mg in 24 hours.
Those rows live on the CYP scan. They are not a 'weak start' joke.
How often that start may be repeated
Once per day is the maximum frequency at 10, 20, or 5 mg. A failed evening is not a second tablet.
The once-a-day job is its own scan.
Age 65 is a different start scan
Clinicians are asked to consider 5 mg first once age hits 65. That cut has its own page: age 65.
Do not treat 10 mg as a senior default just because it is the 'most patients' line.