What is Generic Viagra?
Generic Viagra is a common medicine used to treat erectile dysfunction (ED) — difficulty getting or keeping an erection.
- The brand name is Viagra, and the active ingredient is Sildenafil.
- Generic Viagra works the same as the brand version.
- Other similar ED medicines include Avanafil (Stendra), Tadalafil (Cialis), and Vardenafil (Levitra).
How Generic Viagra Works
- During sexual arousal, blood flow to the penis increases, causing it to become hard and erect.
- An enzyme called PDE5 can reduce levels of cGMP, a chemical that relaxes muscles and increases blood flow.
- Sildenafil blocks PDE5, keeping cGMP levels higher, which helps maintain an erection.
Important: Viagra only works when you are sexually stimulated. It will not cause an erection on its own.
Precautions Before Taking Generic Viagra
- Avoid Viagra if you have heart disease, liver problems, or kidney issues.
- Do not drink alcohol while taking it.
- Avoid grapefruit and grapefruit juice.
- Avoid dangerous activities, such as driving or operating machinery, because it may cause dizziness or blurred vision.
- Not suitable for men under 18.
- Not recommended for women.
- Avoid if you have:
- Peyronie’s disease (curved penis)
- Certain blood disorders
- Retinitis pigmentosa (eye disease)
When to Take Generic Viagra
- Take the tablet 30–60 minutes before sex.
- Can be taken with or without food.
- Avoid taking it on an empty stomach if possible.
- High-fat meals can slow down its effects.
- Works best when you are sexually aroused.
How Long Does It Last?
- Viagra works for up to 4 hours.
- Take it 30 minutes to 4 hours before sexual activity.
Who Can and Cannot Use Generic Viagra
- Suitable only for men with ED.
- Not for anyone with serious kidney, liver, or heart problems.
- Avoid if allergic to Sildenafil or taking nitrate medicines (for chest pain).
- Do not combine with other ED medicines.
- Not for children or women under 18.
How to Use Viagra Properly
- Take Viagra as needed, about 30–60 minutes before sex.
- Do not take more than once in 24 hours.
- Absorption may be slower if taken with high-fat foods.
- Absorption may increase if taken with grapefruit (but this can be risky).
Available Doses
Some commonly available generic Viagra brands and doses:
- Fildena 100 mg / 120 mg
- Cenforce 100 mg / 200 mg