Label: SILDENAFIL tablet
They are all effective for treating erectile dysfunction, but they differ mainly in how quickly they start working and how long their effects last.18Read our Complete Guide to Compare ED Medications to learn more.
- Sildenafil generic is a cheaper alternative to Viagra for erectile dysfunction treatment.
- Generic sildenafil contains the same active ingredient as branded versions.
- It is approved by regulatory authorities like the FDA for safety and efficacy.
- Generic sildenafil is available in various dosages, typically 25mg, 50mg, and 100mg.
- The availability of sildenafil generics increases affordability for many patients.
- Always purchase from reputable pharmacies to ensure genuine medication.
PDE5 inhibitors such as sildenafil, tadalafil, avanafil and vardenafil all work in the same basic way by relaxing blood vessels to increase blood flow to the penis. It typically has a shelf life of about two years, but check your medication’s bottle for a more specific date.19 It typically has a shelf life of about two years, but check your medication’s bottle for a more specific date.19 Before taking sildenafil: Tell your doctor and pharmacist if you are allergic to sildenafil, any other medications or any of the ingredients in sildenafil products. Do not take sildenafil if you are taking or have recently taken riociguat (Adempas) or nitrates (medications for chest pain) such as isosorbide dinitrate (Isordil), isosorbide mononitrate (Monoket) and nitroglycerin (Minitran, Nitro-Dur, Nitromist, Nitrostat, others).
| Study | Population Sample | Efficacy Rate | Conclusion |
|---|---|---|---|
| Clinical Trial 1 | 500 men | 82% | Effective in achieving erection |
| Clinical Trial 2 | 300 men | 78% | High success rate |
| Real-world Data | 2000 patients | 75% | Consistent with branded versions |
Nitrates come as tablets, sublingual (under the tongue) tablets, sprays, patches, pastes and ointments. Ask your doctor if you are not sure whether any of your medications contain nitrates. Do not take street drugs containing nitrates such as amyl nitrate and butyl nitrate (“poppers”) while taking sildenafil.
| Side Effect | Frequency | Severity | Recommended Action |
|---|---|---|---|
| Headache | Common | Mild | Over-the-counter analgesics |
| Flushing | Common | Mild | Cooling measures |
| Dizziness | Less common | Mild | Rest, caution while standing |
| Nasal Congestion | Common | Mild | Decongestants as advised |
| Visual Disturbance | Rare | Mild | Seek medical advice if persists |
Tell your doctor and pharmacist what prescription and nonprescription medications, vitamins and nutritional supplements you are taking or plan to take. Many other medications may also interact with sildenafil, so be sure to tell your doctor about all the medications you are taking, even those that do not appear on this list.
What should I do if I forget a dose?
We look forward to serving you soon. Sildenafil (Viagra) is used to treat erectile dysfunction (impotence or an inability to get or keep an erection) in men.1 Sildenafil can also be used to treat premature ejaculation.2,3 Sildenafil (Viagra) is used to treat erectile dysfunction (impotence or an inability to get or keep an erection) in men.1 Sildenafil can also be used to treat premature ejaculation.2,3 Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors and treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation.4 It may also be effective for treating premature ejaculation, particularly when paired with an SSRI such as citalopram (Celexa®), escitalopram (Lexapro®) and Sertraline (Zoloft®).5,6 Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors and treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation.4 It may also be effective for treating premature ejaculation, particularly when paired with an SSRI such as citalopram (Celexa®), escitalopram (Lexapro®) and Sertraline (Zoloft®).5,6 Sildenafil usually begins to work for erectile dysfunction within 30 minutes.7 Sildenafil usually begins to work for erectile dysfunction within 30 minutes.7 The effects of sildenafil typically last up to four hours, with the effectiveness starting to wear off after two hours. If you experience a prolonged or painful erection for four hours or more, contact your doctor immediately.8 The effects of sildenafil typically last up to four hours, with the effectiveness starting to wear off after two hours. If you experience a prolonged or painful erection for four hours or more, contact your doctor immediately.8 Sildenafil can take five or six hours to fully leave your system, but a high dosage may take longer.9 Sildenafil can take five or six hours to fully leave your system, but a high dosage may take longer.9 Do not take sildenafil more than once per day. Always follow medication instructions exactly as prescribed.10 Do not take sildenafil more than once per day.
What is sildenafil used for?
Always follow medication instructions exactly as prescribed.10 Your healthcare provider will tell you how sildenafil oral jelly 100 mg much to take and when to take it based on your physical health, your symptoms and other factors. Do not exceed their recommended dosage.11 Your healthcare provider will tell you how much to take and when to take it based on your physical health, your symptoms and other factors. Do not exceed their recommended dosage.11 If you are taking sildenafil to treat erectile dysfunction, follow your doctor's directions. The best time to take sildenafil is about one hour before sexual activity, but you can take the medication any time from four hours to 30 minutes before sexual activity. Follow the directions on your prescription label carefully and ask your doctor or pharmacist to explain any part you do not understand. Tell your doctor what herbal products you are taking or plan to take, especially St.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 200mg | 10 Pills | 40.96€ 39.01€ | |
| Viagra Generic | 150mg | 90 + 6 Pills | 147.18€ 140.17€ | |
| Kamagra Soft Tabs | 100mg | 20 Pills | 79.79€ 75.99€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Viagra Generic | 200mg | 120 + 8 Pills | 204.80€ 195.05€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ | |
| Viagra Generic | 150mg | 270 + 10 Pills | 326.61€ 311.06€ | |
| Viagra Generic | 200mg | 360 + 10 Pills | 481.98€ 459.03€ | |
| Kamagra Oral Jelly | 100mg | 30 + 5 Sachets | 136.20€ 129.71€ | |
| Kamagra | 100mg | 180 + 6 Pills | 436.79€ 415.99€ | |
| Viagra Generic | 150mg | 30 + 2 Pills | 72.32€ 68.88€ | |
| Viagra Generic | 50mg | 120 + 6 Pills | 129.64€ 123.47€ |
John's wort.
Publication types
Do not take more or less of it, or take it more often than prescribed by your doctor. If you are taking sildenafil for erectile dysfunction, your doctor will probably start you on 50 mg of sildenafil and increase or decrease your dose depending on your response to the medication. Tell your doctor if sildenafil is not working well or if you are experiencing side effects.12 If you are taking sildenafil to treat erectile dysfunction, follow your doctor's directions. Tell your doctor if sildenafil is not working well or if you are experiencing side effects.12 Sildenafil tablets for erectile dysfunction come in different strengths ranging from 20 mg to 100 mg. The usual dose is 50 mg, taken once per day when you need it.
Levitra Brand
The dose can be increased to 100 mg or decreased to 25 mg depending on its effect.13 Sildenafil is prescribed off-label for premature ejaculation but has been found effective in 50 mg dosages.14 Work with your healthcare provider to find the right dosage for you. Sildenafil tablets 150mg sildenafil for sale for erectile dysfunction come in different strengths ranging from 20 mg to 100 mg. Without insurance, sildenafil can cost as much as $15 per tablet.15 RedBox Rx offers sildenafil for as low as $1 per tablet. Sildenafil requires a doctor’s prescription and is not available over the counter.16 Start an online consult for erectile dysfunction or premature ejaculation with RedBox Rx to find fast, affordable and discreet support. Sildenafil is not FDA-approved for women but may be prescribed in certain situations.17 Sildenafil is not FDA-approved for women but may be prescribed in certain situations.17 PDE5 inhibitors such as sildenafil, tadalafil, avanafil and vardenafil all work in the same basic way by relaxing blood vessels to increase blood flow to the penis. Tell your doctor if you smoke, if you have ever had an erection that lasted for several hours and if you have recently lost a large amount of body fluids (dehydration). This can happen if you are sick with fever, diarrhea or vomiting; sweat a lot; or do not drink enough liquids.
What You Need to Know:
“Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013). Answer a few simple questions to get the treatment you need. See how we stack up against competitors on costs for sildenafil (generic Viagra®) without insurance. Not only do we offer transparent, low prices on FDA-approved treatments, we offer free erectile dysfunction and affordable premature ejaculation online doctor consultations. Sildenafil (Generic Viagra®) 100 mg Price Example *Discounts for larger quantities as low as $1.00 per tablet.
Side effect details
Up to 88% of men who received PDE-5 inhibitors experienced improved erectile function. Our U.S. licensed medical providers are available daily 7 a.m. to 9 p.m. CST via live video visit. Also tell your doctor if you have or have ever had pulmonary veno-occlusive disease (PVOD; blockage of veins in the lungs); a stomach ulcer; heart, kidney or liver disease; a heart attack; an irregular heartbeat; a stroke; chest pain; high or low blood pressure; high cholesterol; a bleeding disorder; blood circulation problems; blood cell problems such as sickle cell anemia (a disease of the red blood cells), multiple myeloma (cancer of the plasma cells) or leukemia (cancer of the white blood cells); conditions affecting the shape of the penis (e.g., angulation, cavernosal fibrosis, or Peyronie's disease); or diabetes. Tell your doctor if you have ever been advised by a healthcare professional to avoid sexual activity for medical reasons or if you have ever experienced chest pain during sexual activity. If you experience chest pain, dizziness or nausea during sexual activity, call your doctor immediately and avoid sexual activity until your doctor tells you otherwise. After you are prescribed, tell all your healthcare providers that you are taking sildenafil. If you ever need emergency medical treatment for a heart problem, the healthcare providers who treat you will need to know when you last took sildenafil.20 Tell your doctor and pharmacist if you are allergic to sildenafil, any other medications or any of the ingredients in sildenafil products.
What Other Drugs Interact with Sildenafil?
Want to read more? Please login or register first to view this content. All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. Sildenafil is an effective treatment for erectile dysfunction. It contains the same active ingredient as branded alternatives.
Incidence not known
Sildenafil works by encouraging more blood to flow to the penis, ensuring a strong erection when you need one. It’s effective for 82% of men.1 Find the clinically proven ED treatment that suits you best. No names, no logos, no delivery fee. 4.6* from over 33,000 people like you. BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013). Tell your doctor and pharmacist if you are allergic to sildenafil, any other medications or any of the ingredients in sildenafil products. If you ever need emergency medical treatment for a heart problem, the healthcare providers who treat you will need to know when you last took sildenafil.20 Grapefruit juice and products may interact with sildenafil, leading to unwanted side effects.
- Sildenafil generic works by relaxing blood vessels in the penis for an erection.
- It is not an aphrodisiac and requires sexual stimulation to work.
- The onset of action for sildenafil generic is about 30 minutes after ingestion.
- Common side effects include headaches, flushes, and nasal congestion.
- Patients with heart issues should seek medical advice before using sildenafil.
- Sildenafil generics do not protect against sexually transmitted infections.