Comparing Onset and Duration of Action

Viagra (sildenafil) typically starts working within 30-60 minutes, with effects lasting up to 4 hours. A 100mg dose might slightly extend this timeframe, but individual responses vary considerably. Cialis (tadalafil), especially a 20mg dose, boasts a longer onset, often taking effect within 30 minutes to 2 hours. However, its unique advantage lies in its significantly longer duration; effects can persist for up to 36 hours, earning it the nickname “weekend pill”.

Factors Influencing Onset and Duration

Several factors influence how quickly and how long these medications work. These include your overall health, age, metabolism, and even what you’ve eaten or drunk. For example, a fatty meal can delay the absorption of both drugs.

Comparative Table: Onset and Duration

Medication Typical Onset Typical Duration
Viagra (100mg) 30-60 minutes 4 hours
Cialis (20mg) 30 minutes – 2 hours Up to 36 hours

This information is for general understanding and should not replace consultation with your doctor. Always follow your physician’s recommendations for dosage and usage.