No, Viagra is not made to keep you hard after you ejaculate, and its label makes no such claim. Viagra is a treatment for erectile dysfunction: it helps an erection happen when you are sexually stimulated, for up to about 4 hours after a dose (healthdirect). Going soft after ejaculation is a natural physiological process, and nothing on the label says the tablet changes that.
How does Viagra work?
Sildenafil works by increasing blood flow to the penis: it relaxes the blood vessels there so blood can flow in, which makes an erection easier to get. It does not cause an erection without sexual stimulation or activity (healthdirect). It usually starts working 30 to 60 minutes after the tablet, and its effects can last for up to 4 hours (healthdirect).
Can you get a second erection while it is working?
Possibly, if you are aroused again within those hours. healthdirect says ED medicines can increase both the number and the duration of erections, though they do not increase interest in sex (healthdirect). What no label promises is a shorter wait after ejaculation: neither the Australian consumer leaflet nor the European product information makes any claim about the recovery time between erections. Take one tablet in 24 hours at most, even if you want a second round later (healthdirect).
What is Viagra actually for?
Sildenafil is used to treat erectile dysfunction: to help men who have trouble getting or keeping an erection maintain an erection during sexual activity. Sexual stimulation is required for it to work (EMA). Viagra and its generic counterpart, sildenafil tablets, contain the same medicine, and in Australia both need a prescription (healthdirect).
Does Viagra help you last longer?
Not in the sense of delaying ejaculation. Some men hope Viagra can make them last longer or enhance their sexual performance, but ED medicines treat erections; treatment cannot fix problems with ejaculation or sensation that have always been there (healthdirect). Coming too early is a different problem with different treatments. Dapoxetine, one medicine for it, is also prescription-only in Australia (TGA).
When is an erection too long?
An erection that lasts more than 4 hours needs the nearest hospital emergency department (healthdirect). Painful, prolonged erections (priapism) are a rare but serious side effect of ED medicines (healthdirect). Never take Viagra with nitrates for angina: together they can drop your blood pressure suddenly.
