For most men, the effects of Viagra will start within an hour
Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon)
Vision changes such as increased sensitivity to light, blurred vision, or trouble telling blue and green colors apart may For oral dosage form (tablets): Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse
You should not use Viagra if you are allergic to sildenafil, or: if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas)
Viagra: This drug is used to treat ED
Keep in mind that meals high in fat may cause Viagra to take longer than usual to start working
Do not take it more than once a day
But so far
It can start working within 30 minutes, but it may take a couple hours for some people
This is based on a new study
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