Ann: Commercial Update and Regulatory Progress, page-318

Is that so?

Viagra (*word disallowed by google) typically stays active in the body for about 4 to 6 hours, but this can vary depending on individual factors. Here's a breakdown:

Duration of Action

• Peak effects: Usually within 30 to 120 minutes after taking it.

• Effective window: Most noticeable effects last around 4 hours.

• Fading phase: Effects gradually diminish but small amounts of the drug may stay in the body for up to 24 hours.

Half-life

• Viagra's half-life is ~4 hours, meaning half the drug is eliminated in that time.

• After 24 hours, it's generally considered cleared from your system for practical purposes.

Viagra (*word disallowed by google) would not have any meaningful effects after 72 hours.

Here's why:

• Its half-life is about 4 hours, meaning:

  • After 4 hours → 50% remains

  • After 8 hours → 25%

  • After 24 hours → ~6%

  • By 72 hours, there’s less than 0.1% left in your system—essentially gone

So at 72 hours:

• There's not enough drug left in your body to cause any significant erectile effects or side effects

• If you're still feeling effects at that point, it may be due to another medication, condition, or placebo/nocebo response