01When a second clock that night is off
Once per day is the frequency cap. Rescue stacking after a rushed hour is the weekly error. Wait for another day, or change the plate, or talk about a class switch.
The sildenafil 25-50 mg vault holds the start row next to this clock.
02Why 15-minute party timing fails
Fasted peak plasma is a median of 60 minutes, range about 30 to 120. Giving up at 15 minutes writes a false miss. So does stacking a second tablet because the first hour felt quiet.
Maximum labelled frequency is once per day. A late peak is not a second swallow.
03What the 30-minute to 4-hour band is
The insert says Viagra may be taken anywhere from 30 minutes to 4 hours before sexual activity. That is a dosing window, not a promise that every night peaks at minute 30.
How long help was counted at 4 hours on 100 mg sits on Eardley at 4 hours. This page stays on when to swallow 25-50 mg.
04When the label says to swallow
Approximately 1 hour before sexual activity is the sentence most men should plan around. 50 mg is the usual start. 25 mg uses the same clock when that is the directed strength.
A 15-minute swallow before the door opens is hoping for an early responder, not following the labelled hour.
05How a fasted hour usually lands
On an empty stomach the median Tmax is about 60 minutes. That is why the hour before sex is the practical plan for 25 mg or 50 mg.
A high-fat plate moves that peak later. The food-timing pulse walks the meal row. Tmax plus 60 after a heavy plate is the 25-50 lock angle on food.
06What a late swallow still allows
If the evening slipped, the label still allows a swallow up to 4 hours before activity. It does not allow a second 50 mg because the first one was late.
Arousal is still required. Plasma at 90 minutes is not an erection by itself.