Sildenafil (C22H30N6O4S), 1 gram
These actions allow blood to flow into the corpus cavernosum, which causes your penis to get hard and become erect. ED can occur if you have certain problems that affect your body’s ability to have an erection.
What happens if I miss a dose?
If you have an erection that lasts longer than 4 hours, go to the nearest emergency room or call 911. Viagra may work faster if you take it on an empty stomach. If Viagra is taken with food, especially with a high fat meal, it will take longer to start working. And in this case, it could even be less effective for you. Viagra is approved to treat erectile dysfunction (ED) in males.
Clinical monitoring
With ED, you have trouble getting and keeping an erection that’s firm enough to allow you to have sex. When you’re sexually aroused, your brain sends messages to your penis. These messages cause certain chemicals to be released in your penis. One of these chemicals, called cyclic GMP, relaxes and widens certain blood vessels in your penis. Cyclic GMP also relaxes the muscles around the erectile tissue in your penis that’s called the corpus cavernosum. The condition can result from problems sildenafil 25 mg tablets with messages being sent from your brain.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 100mg | 30 + 4 Pills | 60.91€ 58.01€ | |
| Viagra Generic | 100mg | 90 + 6 Pills | 129.02€ 122.88€ | |
| Kamagra Soft Tabs | 100mg | 84 + 4 Pills | 233.05€ 221.95€ | |
| Viagra Generic | 50mg | 90 + 6 Pills | 107.37€ 102.26€ | |
| Viagra Generic | 150mg | 270 + 10 Pills | 326.61€ 311.06€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Kamagra Polo | 100mg | 120 + 6 Pills | 327.15€ 311.57€ | |
| Viagra Generic | 150mg | 30 + 2 Pills | 72.32€ 68.88€ | |
| Viagra Generic | 50mg | 360 + 10 Pills | 225.33€ 214.60€ | |
| Viagra Generic | 200mg | 60 + 4 Pills | 125.19€ 119.23€ | |
| Kamagra Soft Tabs | 100mg | 20 Pills | 79.79€ 75.99€ | |
| Kamagra Polo | 100mg | 272 + 12 Pills | 622.94€ 593.28€ | |
| Kamagra Oral Jelly | 100mg | 10 Sachets | 54.55€ 51.95€ | |
| Kamagra Soft Tabs | 100mg | 32 Pills | 120.11€ 114.39€ | |
| Viagra Generic | 100mg | 20 Pills | 45.58€ 43.41€ | |
| Viagra Generic | 100mg | 270 + 10 Pills | 270.47€ 257.59€ |
ED can also result from problems with blood flow into your penis.
- Sildenafil 50mg is available by prescription or over-the-counter in some regions.
- It is not a treatment for erectile dysfunction caused by psychological issues alone.
- Women and children should not use sildenafil unless prescribed by a doctor.
- Sildenafil interacts with nitrates, which can cause dangerous blood pressure drops.
- Alcohol consumption can reduce the effectiveness of sildenafil and increase side effects.
- Storage of sildenafil should be in a cool, dry place away from children.
- The medication is typically taken only once per day to avoid overdose.
- Some people may experience visual disturbances as a side effect.
- Sildenafil may be used with other erectile dysfunction medications under medical supervision.
- The onset of action is usually within 30 to 60 minutes after ingestion.
- Sildenafil 50mg is preferred for men who find higher doses cause adverse effects.
Viagra works to treat ED by helping you get and maintain an erection. The drug does this by improving blood flow into your penis when you’re sexually aroused. Viagra is a type of drug called a phosphodiesterase type 5 (PDE5) inhibitor. It works by inhibiting (blocking) the action of an enzyme called PDE5.
| Parameter | Value | Description | Time to Peak | Duration Effect | Absorption Rate |
|---|---|---|---|---|---|
| Tmax | 30-120 minutes | Time to maximum plasma concentration | 1 hour | Up to 4-6 hours | Fast |
| Half-life | 4 hours | Plasma half-life | N/A | N/A | Moderate |
| Bioavailability | 40% | Percentage absorbed | N/A | N/A | Moderate |
(An enzyme is a protein that helps chemical reactions to happen inside your body.) Usually, an erection goes away when PDE5 breaks down the cyclic GMP in your penis. But Viagra blocks the action of PDE5, so it allows cyclic GMP to keep working for a longer period of time than usual. This action improves blood flow to your penis and helps you get and keep an erection. No, Viagra doesn’t directly increase your sex drive. And it doesn’t make you sexually aroused. However, some people find that if Viagra works to treat their erectile problem, it also increases their sexual confidence. And this may lead to an increased sex drive. Viagra may not work for everyone, and it may not work every time you take it. If you’re sexually aroused, Viagra should work to help you get or keep an erection within 30 minutes to 2 hours. But if you don’t get an erection within 4 hours after taking a dose, Viagra didn’t work for you this time. If the drug doesn’t work for you, you shouldn’t take another dose until at least 24 hours later. And talk with your doctor if you feel Viagra isn’t helping to treat your ED.
What special dietary instructions should I follow?
The New England Journal of Medicine, 338(20), 1397–1404. A prospective study of the beneficial effects of dose optimization and customized instructions on patient satisfaction with sildenafil citrate (Viagra) for erectile dysfunction. International Journal of Impotence Research, 18(5), 389–394. Sublingual sildenafil in the treatment of erectile dysfunction: Faster onset of action with less dose. International Journal of Urology, 11(11), 989–993.
What does Viagra do for ED?
Sex, erectile dysfunction, and the heart: A growing problem. Phosphodiesterase‑5 (PDE5) inhibitors in the management of erectile dysfunction. Pharmacy and Therapeutics, 38(7), 407–419. Cardiovascular effects of sildenafil citrate and recommendations for its use. American Journal of Cardiology, 84(5), 11N–17N.
Side effects and risks
Viagra is a medication used to treat erectile dysfunction by improving blood flow to the penis. The drug is available in different dosages. The appropriate dose depends on factors like age, kidney or liver problems, and other medications being taken. While generally considered safe, Viagra can cause side effects, including headaches and low blood pressure. It can also interact negatively with other medications like nitrates. They may recommend that you try a different medication for your ED. It’s important to remember that Viagra only works if you’re already sexually aroused. Arousal may involve having sexual thoughts, looking at sexual images, masturbating, or engaging in foreplay. But if you feel anxious, nervous, depressed, or stressed, your body may not respond well to sexual stimulation. If this is the case, try to relax, make yourself comfortable, and take your time. In addition, if you drink alcohol, it’s best to avoid drinking a lot of it. This is because consuming large amounts of alcohol can make it more difficult to get an erection. If you’re having trouble getting an erection, even while using Viagra, talk with your doctor. Instead, it belongs to a group of drugs called phosphodiesterase type 5 (PDE5) inhibitors.
| Ingredient | Quantity per 50g | Active Ingredient | Sildenafil Citrate | Excipients |
|---|---|---|---|---|
| Sildenafil | 50g | Yes | 50g | Various |
| Fillers | Varies | No | N/A | Microcrystalline cellulose, lactose |
| Binders | Varies | No | N/A | Starch, povidone |
Viagra works by blocking the action of a certain enzyme in your body. Since Viagra has been released onto the market, there have been a few reports of bleeding in people who have taken the drug. However, there’s no evidence that Viagra caused these bleeding problems. It’s not known if Viagra is safe for use in people with a bleeding problem. If you have any bleeding problems, talk with your doctor about whether Viagra is safe for you. After taking a dose of Viagra, the drug’s level in your body will gradually decrease over a period of a few hours. You’ll have low levels of the drug in your body after about 4 hours. (And at this point, the drug won’t be working any longer.) But it can actually take about 24 hours for Viagra to be completely removed from your body.
Key Takeaways
Physician-Scientist; Founder, Director, and Chief Executive OfficerXYON: Founder, Director, and CEOEducationDoctorate of Medicine (MD) — University of Cape Town, South Africa — 1991Genetics (PhD) — University of Amsterdam, The Netherlands — 1998Internal Medicine (Postgraduate Fellowship) — University of British Columbia (UBC), Canada — 2001Academic & Clinical AppointmentsClinical Assistant Professor, Division of General Internal Medicine — University of British ColumbiaAssociate Member, Division of Cardiology, Department of Medicine — University of British ColumbiaFaculty — Providence Health Care Heart and Lung Institute B., Ströberg, P., Lee, S. W., Park, N. C., Kim, S.-W., Tseng, L.-J., Collins, S., & Stecher, V. J. Sildenafil citrate 100 mg starting dose in men with erectile dysfunction in an international, double-blind, placebo-controlled study: Effect on the sexual experience and reducing feelings of anxiety about the next intercourse attempt.
What should I do if I miss a dose of sildenafil?
The Journal of Sexual Medicine, 6(10), 2826–2835. Sildenafil: A review of its use in erectile dysfunction. American Journal of Men’s Health, 11(3), 747–757. Urologist recommends daily Viagra to prevent impotence. Goldstein, I., Lue, T.
Professional resources
F., Padma-Nathan, H., Rosen, R. C., Steers, W. D., & Wicker, P. A. Oral sildenafil in the treatment of erectile dysfunction. If you have other questions about how long Viagra works, talk with your doctor. Viagra can cause mild or serious side effects. The following lists contain some of the key side effects that may occur while taking Viagra. These lists don’t include all possible side effects. For more information on the possible side effects of Viagra, talk with your doctor or pharmacist.
| Side Effect | Frequency | Severity | Management | Notes |
|---|---|---|---|---|
| Headache | Common | Mild | Analgesics | Usually transient |
| Flushing | Common | Mild | Cooling measures | Temporary |
| Nasal Congestion | Common | Mild | Decongestants | Usually resolves |
| Dizziness | Less common | Moderate | Rest and hydration | Exercise caution |
They can give you tips on how to deal with any side effects that may be concerning or bothersome. Note: The Food and Drug Administration (FDA) tracks side effects of drugs it has approved. If you would like to report to the FDA a side effect you’ve had with Viagra, you can do so through MedWatch.
How it works
Viagra is a brand-name oral tablet prescribed for erectile dysfunction (ED). You’ll find key information about Viagra below. Drug class: phosphodiesterase type 5 (PDE5) inhibitor In several clinical studies, Viagra was effective in treating erectile dysfunction (ED). In these studies, males who used the drug had an improved ability to have and keep erections during sexual activity. To learn more about Viagra’s effectiveness, see the “Viagra uses” section.
Product Details
Use of the term “male” in this article refers to sex assigned at birth. Viagra typically starts to work between 30 and 60 minutes after you take a dose of the drug. But Viagra itself doesn’t give you an erection. You’ll need to be sexually aroused in order for the drug to work. Viagra keeps working in your body for up to 5 hours.
When to take
This means that if you’re aroused, you should still be able to get an erection up to 4 hours after taking a dose of Viagra. Even though Viagra keeps working in your body for several hours, your erection shouldn’t last this long. In fact, in rare cases, Viagra can cause priapism (a long-lasting and sometimes painful erection). Priapism is a medical emergency that needs to be treated right away. If it’s not treated, the condition can damage the tissues in your penis and cause irreversible erectile dysfunction. Mild side effects of Viagra can include:* mild and temporary vision changes, such as a blue tinge in your vision, blurred vision, and sensitivity to light Most of these side effects may go away within a few days or a couple of weeks. But if they become more severe or don’t go away, talk with your doctor or pharmacist. * This is a partial list of mild side effects from Viagra. To learn about other mild side effects, talk with your doctor or pharmacist, or view the drug’s prescribing information. Serious side effects from Viagra aren’t common, but they can occur.
- Sildenafil can cause side effects such as dizziness, vision changes, or priapism.
- Priapism is a prolonged erection that requires urgent medical attention.
- Patients should avoid grapefruit juice while taking sildenafil due to interactions.
- The medication is contraindicated in those with severe cardiovascular conditions.
- Sildenafil is not recommended for use with certain antidepressants or blood pressure medicines.
- It is important to hydrate well and avoid excessive alcohol intake.
- In some cases, it can be used to treat pulmonary arterial hypertension.
- The medication can be prescribed even if erectile dysfunction is secondary to other conditions.
- Discontinue use and consult a doctor if side effects or allergic reactions occur.
- Sildenafil 50mg is a moderate dose suitable for many men with ED.
- Regular medical checkups are advised to monitor health while on sildenafil.
Serious side effects and their symptoms can include: Non-arteritic anterior ischemic optic neuropathy (NAION), which is an eye condition that causes damage to your optic nerve. This is a medical emergency that should be treated right away. Symptoms can include: sudden decrease in vision in one or both of your eyessudden loss of vision in one or both of your eyes sudden decrease in vision in one or both of your eyes sudden loss of vision in one or both of your eyes This condition may also involve other symptoms, such as: tinnitus (ringing or buzzing in your ears)dizziness tinnitus (ringing or buzzing in your ears) Priapism, which is a long-lasting and sometimes painful erection. Symptoms can include: an erection that won’t go away, and may not be fully firmpain in the penis an erection that won’t go away, and may not be fully firm Other serious side effects, which are explained in more detail below in “Side effect details,” include: low blood pressure, if Viagra is taken with certain other medications cardiovascular problems, such as heart attack, irregular heartbeat, or stroke, all of which occur mainly in people with heart disease You may wonder how often certain side effects occur with this drug.