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Figure 6 shows that regardless of the baseline levels of function, subsequent function in patients treated with VIAGRA was better than that seen in patients treated with placebo. At the same time, on-treatment function was better in treated patients who were less impaired at baseline. The physiologic mechanism of erection of the penis involves release of nitric oxide (NO) in the corpus cavernosum during sexual stimulation. In volunteers with hepatic impairment (Child-Pugh Class A and B), sildenafil as citrate for cats clearance was reduced, resulting in higher plasma exposure of sildenafil (47% for Cmax and 85% for AUC).

If you and your doctor determine that Viagra is safe and effective for you, you’ll likely take it long term. The following information describes commonly recommended dosages for ED. However, be sure to take the dosage your doctor prescribes for you. Your doctor will determine the best dosage to fit your needs. This article describes typical dosages for Viagra provided by the drug’s manufacturer.

(An active ingredient is what makes a drug work.) Viagra belongs to a group of drugs called phosphodiesterase 5 (PDE5) inhibitors. The use of VIAGRA offers no protection against sexually transmitted diseases. VIAGRA is rapidly absorbed after oral administration, with a mean absolute bioavailability of 41% (range 25–63%). The pharmacokinetics of sildenafil are dose-proportional over the recommended dose range. It is eliminated predominantly by hepatic metabolism (mainly CYP3A4) and is converted to an active metabolite with properties similar to the parent, sildenafil.

Dosage will depend on what your healthcare practitioner believes is the best choice for you. The most common dosages are 50mg or 100mg, but in some cases, 25mg doses are used. Sildenafil is a medicine used to treat erectile dysfunction (ED, also called impotence). It is sometimes known by its generic name sildenafil, and sometimes known by its trade name Viagra. In rare cases, Viagra can cause a sudden hearing impairment or loss, which may include ringing in the ears or dizziness. If you have any of these symptoms, stop taking Viagra and consult your healthcare provider right away.

Many events were reported to occur during or shortly after sexual intercourse and a few were reported to occur shortly after the use of VIAGRA without sexual activity. It is not possible to determine whether these events are related directly to these factors or to other factors. Your doctor may prescribe a different dosage of Viagra for you depending on several factors. These factors may include having liver or kidney problems, taking certain other medications, and being 65 years or older. If any of these factors apply to you, your starting dose might be 25 mg, which is lower than the typical recommended dose.

Another study conducted at the University of Toronto examined the interaction of sildenafil with other drugs such as nitrates and alpha blockers. The results showed that the combined use of sildenafil with nitrates can lead to serious side effects such as hypotension (decreased blood pressure). Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity.

So, it is best to avoid or limit your alcohol intake when using Viagra. Viagra only works if you are sexually aroused, it will not cause an erection on its own. Every patient that would otherwise have gone to a generic urgent care for their urologic can now be seen at a specialist-level urologic urgent care with same-day appointments. We’re regulated by the Care Quality Commission (CQC) - the regulator of all health and social care services in England - to ensure the service we provide is safe and effective.

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use VIAGRA for a condition for which it was not prescribed. Do not give VIAGRA to other people, even if they have the same symptoms that you have. It is not known if VIAGRA is safe and effective in women or children under 18 years of age. It is important to tell your doctor about any heart problems you have now or may have had in the past. This medicine can cause serious side effects in patients with heart problems.

However, Viagra may not be safe to use if you have certain medical conditions, including heart disease. And it’s not safe to use Viagra if you’re taking certain other medications, such as nitrates. (Nitrates are sometimes used to treat chest pain that’s related to heart problems.) This is why you should only take Viagra if it’s been prescribed by a doctor who knows your medical history. Drug interactions may change how your medications work or increase your risk for serious side effects.

You should not take any more than one sildenafil tablet in 24 hours. Do not take sildenafil if you are taking other medicines for ED. You can get an erection for up to 4 hours after taking sildenafil — meaning the ability to have an erection may last this long, but the actual erections will only last for a normal period of time. If you plan to use sildenafil, you should take it about an hour before planned sexual activity. For example, grapefruit can elevate blood levels of Viagra.

Always check the license number and expiration date, this information should be available on the site and is usually posted prominently or at the bottom of the page. In the absence of such, it is better to pay attention to some other site. Also, you shouldn't buy medicines in sex shops, these shops can sell maximum lubricants, and not purely medical products, which also have a prescription status. VIAGRA 100MG TABLET contains Sildenafil, which belongs to the group of medicines called Phosphodiesterase type 5 (PDE 5) inhibitors. It helps in relaxing the blood vessels and allows more blood flow to the penis. Food and Drug Administration (FDA) for ED in doses of 25 mg, 50 mg, and 100 mg.

This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Like most of these types of medications, this ED drug works by increasing blood flow to the penis to help men achieve and maintain their erections.

Do not take more or less of it or take it more often than prescribed by your doctor. The products discussed in this site may have different product labeling in different countries. The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider. VIAGRA does not protect against sexually transmitted diseases, including HIV.

The tablet should be taken without food and alcohol intake should be limited. Note that the tablet will only work in combination with sexual stimulation and arousal. No more than one erectile dysfunction treatment should be taken at once and there should be a 24 hour break period between each tablet, or 36 hours for Tadalafil and Cialis. Viagra Connect is a PDE5 inhibitor and is taken daily when required, 1 hour before sexual intercourse, at a dose of 50mg. Sildenafil is the active ingredient of the branded medication called Viagra.

Sildenafil citrate is the generic form of Viagra, a.k.a. "the little blue pill," an oral medication used to treat erectile dysfunction (ED). It's also sold under the brand name Revatio, which is prescribed to treat pulmonary arterial hypertension, a condition where blood pressure in the lungs is higher than it should be (Smith, 2021). Viagra is a prescription medication that contains the active ingredient sildenafil. It works by relaxing the blood vessels in the penis, allowing more blood to flow to the area when sexually stimulated. Sildenafil is also available in other brands and strengths for high blood pressure in the lungs (pulmonary hypertension).

If you’ve been prescribed ED medication in the past, or if you are looking for a prescription now, you will undoubtedly be asked whether you take nitrates. Nitrates like nitroglycerin can cause a sudden drop in blood pressure and even lead to heart attack or stroke. Patients on nitroglycerin typically have serious cardiovascular issues that make taking ED medication risky in the first place. Patients taking recreational "poppers," including amyl nitrate, amyl nitrite, and butyl nitrate, should not take ED medication.

However, the benefits for erectile dysfunction were soon understood and the medication was pushed to the front line of the battle against ED. The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring. During pregnancy, this medication should be used only when clearly needed.

Taking Viagra Connect more than once a day may increase the likelihood of experiencing side effects. Another point to keep in mind when buying online is security. You'll never have to wait around at the pharmacy again - we deliver your medications right to your door. The products on this page have been transferred to VIATRIS SPECIALTY LLC. The U.S. Physician Prescribing Information and Patient Information on this page may no longer be current.

Doctors typically start with the lowest dose that is effective in treating erectile dysfunction. One important drug class to keep in mind is the nitrates