Common side effects of Viagra and generic sildenafil include: Changes in your perception of color, such as a visible blue tinge or difficulty telling the difference between the colors blue and green Changes in your perception of color, such as a visible blue tinge or difficulty telling the difference between the colors blue and green Most of these side effects resolve on their own as the medication leaves your body. In rare cases, Viagra and generic sildenafil may cause serious side effects, such as: Priapism (a persistent, often painful erection lasting longer than four hours) Priapism (a persistent, often painful erection lasting longer than four hours) Lightheadedness and dizziness (typically brought on by low blood pressure when combined with other medications) Lightheadedness and dizziness (typically brought on by low blood pressure when combined with other medications) If you experience any of these severe side effects, seek medical attention immediately.
| Side Effect | Frequency | Severity | Notes |
|---|---|---|---|
| Headache | Very common | Mild | Usually resolves with time |
| Flushing | Common | Mild | Due to vasodilation |
| Nasal Congestion | Common | Mild | Congestion of nasal passages |
| Dizziness | Less common | Mild | Especially when standing up quickly |
| Dyspepsia | Less common | Mild | Indigestion or stomach upset |
| Visual Disturbances | Rare | Variable | Changes in color perception or blurred vision |
Both Viagra and generic sildenafil can interact with other medications, including alpha-blockers, nitrates, and other medications used to treat hypertension (high blood pressure), heart disease, and other cardiovascular health issues. As such, you’ll want to tell your healthcare provider if you’re taking any prescription or over-the-counter medications, or if you’ve had previous heart issues like angina, chest pain, or a heart attack. Our complete guide to Viagra (sildenafil) side effects discusses the side effects and interactions listed above in more detail.
Patient Information for Viagra
Common side effects of Viagra and generic sildenafil include: Changes in your perception of color, such as a visible blue tinge or difficulty telling the difference between the colors blue and green Changes in your perception of color, such as a visible blue tinge or difficulty telling the difference between the colors blue and green Most of these side effects resolve on their own as the medication leaves your body. In rare cases, Viagra and generic sildenafil may cause serious side effects, such as: Priapism (a persistent, often painful erection lasting longer than four hours) Priapism (a persistent, often painful erection lasting longer than four hours) Lightheadedness and dizziness (typically brought on by low blood pressure when combined with other medications) Lightheadedness and dizziness (typically brought on by low blood pressure when combined with other medications) If you experience any of these severe side effects, seek medical attention immediately. Both Viagra and generic sildenafil can interact with other medications, including alpha-blockers, nitrates, and other medications used to treat hypertension (high blood pressure), heart disease, and other cardiovascular health issues. As such, you’ll want to tell your healthcare provider if you’re taking any prescription or over-the-counter medications, or if you’ve had previous heart issues like angina, chest pain, or a heart attack. Our complete guide to Viagra (sildenafil) side effects discusses the side effects and interactions listed above in more detail.
Does Viagra work the first time you use it?
Minor differences in packaging and pill appearance aside, brand-name Viagra and its generic counterpart, sildenafil, are exactly the same medication. If you have erectile dysfunction, both medications should produce a noticeable boost to your sex life by improving your erections and sexual performance. The key difference, as we mentioned above, is price. While Viagra is relatively expensive, you can purchase generic sildenafil tablets at a much more affordable price. In addition to sildenafil and Viagra, Hims offers access to other proven ED medications online including: Tadalafil (Cialis®): Tadalafil (Cialis) can provide relief from erectile dysfunction for up to 36 hours per dose Tadalafil (Cialis®): Tadalafil (Cialis) can provide relief from erectile dysfunction for up to 36 hours per dose Vardenafil (Levitra®): Vardenafil (Levitra): Offers relief from ED for slightly longer than sildenafil Vardenafil (Levitra®): Vardenafil (Levitra): Offers relief from ED for slightly longer than sildenafil Chewable ED meds: Hard Mints come in discreet packaging and are made with similar ingredients to Viagra® and Cialis® at different dosages Chewable ED meds: Hard Mints come in discreet packaging and are made with similar ingredients to Viagra® and Cialis® at different dosages You can learn more about these medications in our complete guide to the best pills for treating erectile dysfunction or access FDA-approved ED medications with Hims online. Minor differences in packaging and pill appearance aside, brand-name Viagra and its generic counterpart, sildenafil, are exactly the same medication. If you have erectile dysfunction, both medications should produce a noticeable boost to your sex life by improving your erections and sexual performance. The key difference, as we mentioned above, is price. While Viagra is relatively expensive, you can purchase generic sildenafil tablets at a much more affordable price.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 25mg | 270 + 8 Pills | 184.26€ 175.49€ | |
| Kamagra Polo | 100mg | 60 + 4 Pills | 189.39€ 180.37€ | |
| Kamagra Soft Tabs | 100mg | 272 + 12 Pills | 593.42€ 565.16€ | |
| Viagra Generic | 100mg | 120 + 6 Pills | 149.50€ 142.38€ | |
| Viagra Generic | 25mg | 60 + 4 Pills | 71.99€ 68.56€ | |
| Viagra Generic | 150mg | 20 Pills | 55.02€ 52.40€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Viagra Generic | 50mg | 60 + 4 Pills | 83.93€ 79.93€ | |
| Viagra Generic | 25mg | 30 + 4 Pills | 47.97€ 45.69€ | |
| Kamagra Soft Tabs | 100mg | 120 + 6 Pills | 311.78€ 296.93€ | |
| Viagra Generic | 200mg | 20 Pills | 61.69€ 58.75€ | |
| Viagra Generic | 50mg | 120 + 6 Pills | 129.64€ 123.47€ | |
| Kamagra Oral Jelly | 100mg | 220 + 18 Sachets | 662.24€ 630.70€ | |
| Kamagra Soft Tabs | 100mg | 180 + 8 Pills | 425.45€ 405.19€ | |
| Kamagra | 100mg | 84 + 6 Pills | 264.44€ 251.85€ |
In addition to sildenafil and Viagra, Hims offers access to other proven ED medications online including: Tadalafil (Cialis®): Tadalafil (Cialis) can provide relief from erectile dysfunction for up to 36 hours per dose Tadalafil (Cialis®): Tadalafil (Cialis) can provide relief from erectile dysfunction for up to 36 hours per dose Vardenafil (Levitra®): Vardenafil (Levitra): Offers relief from ED for slightly longer than sildenafil Vardenafil (Levitra®): Vardenafil (Levitra): Offers relief from ED for slightly longer than sildenafil Chewable ED meds: Hard Mints come in discreet packaging and are made with similar ingredients to Viagra® and Cialis® at different dosages Chewable ED meds: Hard Mints come in discreet packaging and are made with similar ingredients to Viagra® and Cialis® at different dosages You can learn more about these medications in our complete guide to the best pills for treating erectile dysfunction or access FDA-approved ED medications with Hims online. Schedule a call with a healthcare professional today. Phosphodiesterase type 5 inhibitors as a treatment for erectile dysfunction: Current information and new horizons. Erectile Dysfunction: A Review of Historical Treatments With a Focus on the Development of the Inflatable Penile Prosthesis. Dr.
- Sildenafil 100 mg tablets are primarily used to treat erectile dysfunction.
- The medication works by increasing blood flow to the penis.
- It is usually taken 30-60 minutes before sexual activity.
- Do not take more than one tablet per 24 hours to avoid overdose.
- Common side effects include headache, flushing, and nasal congestion.
- Sildenafil 100 mg should be used only under medical supervision.
- Avoid consuming high-fat meals close to the time of intake.
- It may interact with nitrates, leading to dangerous blood pressure drops.
- Store in a cool, dry place away from children and pets.
Kelly Brown is a board certified Urologist and fellowship trained in Andrology. She is an accomplished men’s health expert with a robust background in healthcare innovation, clinical medicine, and academic research.
- The prescribing dose may vary based on individual health factors.
- Side effects are usually mild and temporary.
- Seek emergency medical care if you experience chest pain.
- Sildenafil can cause low blood pressure in some users.
- Ensure your healthcare provider is aware of all medications.
- Sexually transmitted diseases increase risks when using sildenafil.
- Response time varies; some may feel effects sooner or later.
- The medication was revolutionary for erectile dysfunction treatment.
- Regular lifestyle changes can enhance the efficacy of sildenafil.
Dr. Brown was previously Medical Director of a male fertility startup where she lead strategy and design of their digital health platform, an innovative education and telehealth model for delivering expert male fertility care. She completed her undergraduate studies at University of North Carolina at Chapel Hill (go Heels!) with a Bachelor of Science in Radiologic Science and a Minor in Chemistry.
- Sildenafil 100 mg is part of a class of drugs called PDE5 inhibitors.
- It can be used in combination with other ED treatments if prescribed.
- Avoid using medications or supplements not approved by your doctor.
- The effect of sildenafil can be reduced by certain foods and medications.
- Be aware of your health conditions and discuss them with your doctor.
- Use the medication responsibly to minimize potential risks.
- Sildenafil should be used with caution in people with hepatic impairment.
- Check with your doctor if you experience persistent side effects.
- Never take medication that is not prescribed for you.
She took a position at University of California Los Angeles as a radiologic technologist in the department of Interventional Cardiology, further solidifying her passion for medicine. She also pursued the unique opportunity to lead departmental design and operational development at the Ronald Reagan UCLA Medical Center, sparking her passion for the business of healthcare. Dr.
Warnings & Precautions
There are a few potential side effects to be aware of, including headaches, nausea, and dizziness. These are fairly uncommon, but if you are struggling with them you should speak to your clinician. But like any other medication, it needs to be taken exactly as your doctor or pharmacist has instructed. Sildenafil works by allowing your arteries to relax and open, by making more of a chemical called cGMP available. Increasing blood flow through the arteries in the penis means improved erectile function.
Professional resources
Cells in your arteries normally release nitric oxide, which, via molecular messengers including cGMP, sends instructions to muscle proteins to relax. This causes increased blood flow into your penis, which causes an erection. An enzyme called PDE-5 normally breaks down that cGMP, which reverses that relaxation, allowing your erection to subside. Sildenafil, a PDE-5 inhibitor, helps maintain that erection instead. There are some situations where you should not take sildenafil. Brown then went on to obtain her doctorate in medicine from the prestigious Northwestern University - Feinberg School of Medicine and Masters in Business Administration from Northwestern University - Kellogg School of Management, with a concentration in Healthcare Management.
| Condition | Risk | Recommendations |
|---|---|---|
| Use of Nitrates | Severe hypotension risk | Do not co-administer |
| Severe Liver Impairment | Altered drug metabolism | Consult healthcare provider |
| Retinitis Pigmentosa | Potential risk of vision issues | Use with caution |
| Recent Stroke or Heart Attack | Cardiac stress | Medical evaluation required |
| Hypotension (Low Blood Pressure) | Worsening symptoms | Monitor blood pressure during use |
During her surgical residency in Urology at University of California San Francisco, she utilized her research year to focus on innovations in telemedicine and then served as chief resident with significant contributions to clinical quality improvement. Dr. Brown then completed her Andrology Fellowship at Medical College of Wisconsin, furthering her expertise in male fertility, microsurgery, and sexual function. Her dedication to caring for patients with compassion, understanding, as well as a unique ability to make guys instantly comfortable discussing anything from sex to sperm makes her a renowned clinician. In addition, her passion for innovation in healthcare combined with her business acumen makes her a formidable leader in the field of men’s health. Dr. Brown is an avid adventurer; summiting Mount Kilimanjaro in sildenafil 12 5 mg Tanzania (twice!) and hiking the incredible Torres del Paine Trek in Patagonia, Chile. She deeply appreciates new challenges and diverse cultures on her travels. She lives in Denver with her husband, two children, and beloved Bernese Mountain Dog. You can find Dr. Brown on LinkedIn for more information. Urology Residency, University of California San Francisco Urology Residency, University of California San Francisco Northwestern University Feinberg School of MedicineB.S.
Generic vs Brand
Schedule a call with a healthcare professional today. Phosphodiesterase type 5 inhibitors as a treatment for erectile dysfunction: Current information and new horizons. Erectile Dysfunction: A Review of Historical Treatments With a Focus on the Development of the Inflatable Penile Prosthesis. Dr. Kelly Brown is a board certified Urologist and fellowship trained in Andrology.
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She is an accomplished men’s health expert with a robust background in healthcare innovation, clinical medicine, and academic research. Dr. Brown was previously Medical Director of a male fertility startup where she lead strategy and design of their digital health platform, an innovative education and telehealth model for delivering expert male fertility care. She completed her undergraduate studies at University of North Carolina at Chapel Hill (go Heels!) with a Bachelor of Science in Radiologic Science and a Minor in Chemistry. She took a position at University of California Los Angeles as a radiologic technologist in the department of Interventional Cardiology, further solidifying her passion for medicine. in Radiologic Science, Chemistry Minor, University of North Carolina at Chapel Hill Northwestern University Feinberg School of MedicineB.S.
What other drugs will affect sildenafil?
She also pursued the unique opportunity to lead departmental design and operational development at the Ronald Reagan UCLA Medical Center, sparking her passion for the business of healthcare. Dr. Brown then went on to obtain her doctorate in medicine from the prestigious Northwestern University - Feinberg School of Medicine and Masters in Business Administration from Northwestern University - Kellogg School of Management, with a concentration in Healthcare Management. During her surgical residency in Urology at University of California San Francisco, she utilized her research year to focus on innovations in telemedicine and then served as chief resident with significant contributions to clinical quality improvement. Dr.
Is Viagra safe to use?
Brown then completed her Andrology Fellowship at Medical College of Wisconsin, furthering her expertise in male fertility, microsurgery, and sexual function. Her dedication to caring for patients with compassion, understanding, as well as a unique ability to make guys instantly comfortable discussing anything from sex to sperm makes her a renowned clinician. In addition, her passion for innovation in healthcare combined with her business acumen makes her a formidable leader in the field of men’s health. Dr. Brown is an avid adventurer; summiting Mount Kilimanjaro in sildenafil 12 5 mg Tanzania (twice!) and hiking the incredible Torres del Paine Trek in Patagonia, Chile. in Radiologic Science, Chemistry Minor, University of North Carolina at Chapel Hill Cowan, B, Walker, K., Rodgers, K., Agyemang, J.
1. Uses of Welgra 100
She deeply appreciates new challenges and diverse cultures on her travels. She lives in Denver with her husband, two children, and beloved Bernese Mountain Dog. You can find Dr. Brown on LinkedIn for more information. Urology Residency, University of California San Francisco Urology Residency, University of California San Francisco Northwestern University Feinberg School of MedicineB.S.
Recreational use
in Radiologic Science, Chemistry Minor, University of North Carolina at Chapel Hill Northwestern University Feinberg School of MedicineB.S. in Radiologic Science, Chemistry Minor, University of North Carolina at Chapel Hill Cowan, B, Walker, K., Rodgers, K., Agyemang, J. Hormonal Management Improves Semen Analysis Parameters in Men with Abnormal Concentration, Motility, and/or Morphology. Fertility and Sterility, Volume 118, Issue 5, e4. Cowan, B, Walker, K., Rodgers, K., Agyemang, J. Hormonal Management Improves Semen Analysis Parameters in Men with Abnormal Concentration, Motility, and/or Morphology. Fertility and Sterility, Volume 118, Issue 5, e4. Cowan, B, Walker, K., Rodgers, K., Agyemang, J. Regret Regarding Fertility Preservation Decisions Among Male Cancer Patients. The Journal of Urology, 201(Supplement 4), e680-e681. Feasibility Study of Video Telehealth Clinic Visits in Urology. The Journal of Urology, 201(Supplement 4), e545-e545. Erectile dysfunction is a condition in which you have trouble getting or keeping an erection firm enough for satisfying sex. A complete guide to L-arginine for erections Let's delve into the science behind L-arginine’s ability to improve erectile function - and examine just how effective it is. To ensure you’re getting the best results from sildenafil, you should make sure that you’re using it correctly and safely. Below we have detailed the answers to some of the most commonly asked questions about taking sildenafil correctly. If you want to find out about the possible side effects of sildenafil, you can find a separate article about that here. Sildenafil is a medication used to treat erectile dysfunction which is effective and generally well-tolerated. There are a few potential side effects to be aware of, including headaches, nausea, and dizziness. These are fairly uncommon, but if you are struggling with them you should speak to your clinician. But like any other medication, it needs to be taken exactly as your doctor or pharmacist has instructed.
| Condition | Details | Rationale |
|---|---|---|
| Temperature | Store below 25°C (77°F) | Preserves chemical stability |
| Humidity | Keep in a dry place | Prevents clumping and degradation |
| Light | Protect from direct sunlight | Prevents breakdown of active ingredient |
| Container | Original blister or tightly closed bottle | Maintains stability and prevents contamination |
Sildenafil works by allowing your arteries to relax and open, by making more of a chemical called cGMP available.
- Sildenafil 100 mg does not protect against sexually transmitted diseases.
- It is not recommended for women or children.
- The medication can sometimes cause back pain or muscle aches.
- Use sildenafil only as prescribed to minimize risks.
- Some users report facial flushing after taking the pill.
- Avoid excessive physical activity immediately after taking the drug.
- Always read the patient information leaflet before use.
- Do not share your medication with others.
- Sildenafil may cause nasal stuffiness or congestion.
Increasing blood flow through the arteries in the penis means improved erectile function. Cells in your arteries normally release nitric oxide, which, via molecular messengers including cGMP, sends instructions to muscle proteins to relax.
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Regret Regarding Fertility Preservation Decisions Among Male Cancer Patients. The Journal of Urology, 201(Supplement 4), e680-e681. Feasibility Study of Video Telehealth Clinic Visits in Urology. The Journal of Urology, 201(Supplement 4), e545-e545. Erectile dysfunction is a condition in which you have trouble getting or keeping an erection firm enough for satisfying sex.
Can I take Viagra by snorting it?
A complete guide to L-arginine for erections Let's delve into the science behind L-arginine’s ability to improve erectile function - and examine just how effective it is. To ensure you’re getting the best results from sildenafil, you should make sure that you’re using it correctly and safely. Below we have detailed the answers to some of the most commonly asked questions about taking sildenafil correctly. If you want to find out about the possible side effects of sildenafil, you can find a separate article about that here. Sildenafil is a medication used to treat erectile dysfunction which is effective and generally well-tolerated. This causes increased blood flow into your penis, which causes an erection. An enzyme called PDE-5 normally breaks down that cGMP, which reverses that relaxation, allowing your erection to subside. Sildenafil, a PDE-5 inhibitor, helps maintain that erection instead. There are some situations where you should not take sildenafil. You’re taking medications known as nitrates You’re taking medications known as nitrates You’re taking amyl nitrites (also known as “poppers”) You’re taking amyl nitrites (also known as “poppers”) You’re taking medications known as protease inhibitors You’re taking medications known as protease inhibitors You’re taking medications known as alpha-blockers You’re taking medications known as alpha-blockers You’re already taking sildenafil or any other PDE5 inhibitor in another form You’re already taking sildenafil or any other PDE5 inhibitor in another form You have any heart, liver or kidney problems You have any heart, liver or kidney problems You are taking medications for pulmonary arterial hypertension You are taking medications for pulmonary arterial hypertension You’re under the age of 18 You’re under the age of 18 The recommended starting dose is 50 mg. You shouldn’t take this more than once within a 24 hour period.
In case of emergency/overdose
You’re taking medications known as nitrates You’re taking medications known as nitrates You’re taking amyl nitrites (also known as “poppers”) You’re taking amyl nitrites (also known as “poppers”) You’re taking medications known as protease inhibitors You’re taking medications known as protease inhibitors You’re taking medications known as alpha-blockers You’re taking medications known as alpha-blockers You’re already taking sildenafil or any other PDE5 inhibitor in another form You’re already taking sildenafil or any other PDE5 inhibitor in another form You have any heart, liver or kidney problems You have any heart, liver or kidney problems You are taking medications for pulmonary arterial hypertension You are taking medications for pulmonary arterial hypertension You’re under the age of 18 You’re under the age of 18 The recommended starting dose is 50 mg. You shouldn’t take this more than once within a 24 hour period. Taking it more than once a day will increase the chance of side effects. If, after taking sildenafil, you feel the effect is too strong or too weak, you should talk to your doctor or pharmacist who may suggest an adjusted dosage for you or an alternative treatment. You should not take sildenafil film-coated tablets in combination with sildenafil oro-dispersible tablets.
Adjusting Your Sildenafil Dosage Over Time
Take your sildenafil about an hour before you plan to have sex. Swallow the tablet whole with a glass of water. You can take it with or without food, but you might find that the effect takes longer to start if you’ve eaten heavily. Alcohol can interfere with your ability to get an erection (we’ve written about it in detail here), so to maximise the benefit of sildenafil, it’s best to give the beer a miss. Taking it more than once a day will increase the chance of side effects. If, after taking sildenafil, you feel the effect is too strong or too weak, you should talk to your doctor or pharmacist who may suggest an adjusted dosage for you or an alternative treatment. You should not take sildenafil film-coated tablets in combination with sildenafil oro-dispersible tablets. Take your sildenafil about an hour before you plan to have sex. Swallow the tablet whole with a glass of water. You can take it with or without food, but you might find that the effect takes longer to start if you’ve eaten heavily. Alcohol can interfere with your ability to get an erection (we’ve written about it in detail here), so to maximise the benefit of sildenafil, it’s best to give the beer a miss.