Zenegra (Sildenafil Citrate)
Zenegra is a sildenafil citrate medicine used to help treat erectile dysfunction in adult men. It comes in multiple strengths so your prescriber can match treatment to your needs.
3 Zenegra versions and strengths
| Zenegra version | Strength | Form | Ingredient | From |
|---|---|---|---|---|
| Zenegra 50 mg Tablet | 50 mg | Tablet | Sildenafil Citrate | $39.99 |
| Zenegra 100 mg Tablet | 100 mg | Tablet | Sildenafil Citrate | $136.99 |
| Zenegra Red 100 mg Tablet | 100 mg | Tablet | Sildenafil Citrate | $44.99 |
Medically reviewed by Chep Meds USA Pharmacy Team
Content checked by our licensed pharmacists for accuracy against standard prescribing information. Last reviewed October 2026. Our editorial policy
What Zenegra Is and Who Makes It
Zenegra contains sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor used for erectile dysfunction. It works by helping increase blood flow to the penis during sexual stimulation, which can make it easier to get and keep an erection.
Zenegra is manufactured by Alkem Laboratories, a pharmaceutical company based in India. It is available in tablet form and is intended for use only as prescribed or recommended by a healthcare professional.
Zenegra Versions and Strength Differences
The versions we sell are Zenegra 50 mg Tablet, Zenegra 100 mg Tablet, and Zenegra Red 100 mg Tablet. The main difference between them is the amount of sildenafil in each tablet, which can affect how your body responds and how well the dose fits your needs.
Zenegra 50 mg Tablet is often used as a starting strength, while Zenegra 100 mg Tablet may be considered when a lower dose is not enough and the prescriber advises a higher dose. Zenegra Red 100 mg Tablet also contains 100 mg sildenafil citrate; the key difference is the product formulation and branding, not the active ingredient.
How to Choose the Right Strength
The best strength depends on your age, health conditions, other medicines, and how you have responded to sildenafil before. Many adults start with 50 mg, but some may need a different dose based on effectiveness and side effects.
Do not choose a higher strength on your own to improve results. Sildenafil can interact with nitrates, some blood pressure medicines, and certain other drugs, so a clinician should guide the dose if you have heart disease, liver or kidney problems, or take regular medicines.
Safety, Side Effects, and When to Get Help
Common side effects of Zenegra may include headache, flushing, indigestion, nasal congestion, dizziness, and visual changes. These effects are usually mild, but they can be more likely with higher doses.
Get urgent medical help if you have chest pain, a severe allergic reaction, sudden vision loss, sudden hearing changes, or an erection lasting more than 4 hours. Do not take Zenegra with nitrates or use it if your clinician has told you that sexual activity is unsafe for you.
Common questions
What are the Zenegra versions available?
The versions sold are Zenegra 50 mg Tablet, Zenegra 100 mg Tablet, and Zenegra Red 100 mg Tablet. All contain sildenafil citrate, but they differ by strength and product form.
How do Zenegra 50 mg and 100 mg compare?
Zenegra 50 mg has less sildenafil than Zenegra 100 mg, so it is often used when a lower starting dose is preferred. A higher dose may work better for some people, but it can also raise the chance of side effects.
When should I take Zenegra before sex?
Zenegra is commonly taken about 30 to 60 minutes before sexual activity. It may work better when taken on an emptier stomach, and sexual stimulation is still needed for it to be effective.
How much does Zenegra cost?
Price can vary by strength, quantity, and supplier. Check the current listing for Zenegra 50 mg, Zenegra 100 mg, or Zenegra Red 100 mg to see the latest cost and availability.