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This page contains specific information for Viagra, not Revatio. Do not take Viagra while also taking Revatio, unless your doctor tells you to. Some medicines can cause unwanted or dangerous effects when used with Viagra.
However, Viagra is marketed and prescribed strictly for erectile dysfunction, while generic sildenafil can be prescribed for PAH as well. Viagra is also known as “the little blue pill” because of its blue color, while generic sildenafil tends to be a white color. Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication.
The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses. The use of phosphodiesterase-5 inhibitors (PDE5i) and tramadol in the absence of erectile and ejaculatory dysfunctions in Nigeria has become a norm. In this study, we comparatively assess the effects of chronic use of these drugs on hepatotoxicity. Fifty male albino wistar rats weighing 180–200g were randomly assigned into 5 groups (n=10) as follows; control, sildenafil (1mg/100g b.w), tadalafil (1mg/100g b.w), tramadol (2mg/100g b.w) and sildenafil+tramadol treated group (1mg/100g and 2mg/100g b.w, respectively). Tell your doctor about all your current medicines, especially riociguat (Adempas) and nitrates. Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems, including nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and some recreational drugs such as "poppers". Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis. Stop using Viagra and get emergency medical help if you have sudden vision loss.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 100mg | 60 + 4 Pills | 96.36€ 91.77€ | |
| Viagra Generic | 150mg | 120 + 8 Pills | 177.58€ 169.12€ | |
| Viagra Generic | 150mg | 180 + 10 Pills | 236.46€ 225.20€ | |
| Viagra Generic | 50mg | 180 + 8 Pills | 158.82€ 151.26€ | |
| Viagra Generic | 200mg | 60 + 4 Pills | 125.19€ 119.23€ | |
| Kamagra Polo | 100mg | 20 Pills | 83.56€ 79.58€ | |
| Viagra Generic | 200mg | 20 Pills | 61.69€ 58.75€ | |
| Kamagra Soft Tabs | 100mg | 12 Pills | 57.55€ 54.81€ | |
| Kamagra Polo | 100mg | 60 + 4 Pills | 189.39€ 180.37€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Kamagra | 100mg | 120 + 6 Pills | 330.74€ 314.99€ | |
| Kamagra Polo | 100mg | 180 + 8 Pills | 446.52€ 425.26€ | |
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ | |
| Kamagra | 100mg | 84 + 6 Pills | 264.44€ 251.85€ | |
| Viagra Generic | 100mg | 90 + 6 Pills | 129.02€ 122.88€ |
You should not use Viagra if you are allergic to sildenafil, or: if sildenafil citrate 100 mg you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas). if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas).
This means your doctor may need to get approval from your insurance company before your insurance company will pay for the prescription. Sildenafil under the brand name Viagra is prescribed to treat erectile dysfunction by increasing blood flow to the penis during arousal. Sildenafil under the brand name Revatio is often prescribed to help adults with PAH get more exercise by treating their condition. What if I forget to take it? If you are taking Revatio and you forget to take your scheduled dose, take it as soon as possible.
However, you should never double your dosage. If you completely miss a dose and it’s time for the next dose, skip the one you missed. Are there any safety measures I should take before using this drug? Like most medications, there are precautions you should take before using this drug. Make sure you talk with your doctor about: any other drugs, medications, herbs, or supplements you take or plan to take any medical conditions or surgeries you have or plan to have if you are pregnant or plan to become pregnant There are other drugs available to treat your condition. Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems.
Some may be better suited for you than others. Talk with your doctor about other drug options that may work for you. Sildenafil and tadalafil are alike because they both can treat ED and PAH. However, tadalafil has a few distinctions from sildenafil. Tadalafil is the generic name for the erectile dysfunction drug Cialis.
There are two versions of the drug: a version that can be taken as needed Cialis 5-mg daily dosing is the only PDE5 inhibitor dose approved for treating an enlarged prostate; improving ED symptoms is an added benefit of the daily dose. Because of the “as needed” version of tadalafil, some users may find this option more convenient. The sildenafil citrate sublingual tablets 100mg downside, however, is that side effects tend to last longer too. The main difference between generic sildenafil and Viagra is marketing. The main ingredient in Viagra is sildenafil, meaning that the drugs are essentially the same. To make sure Viagra is safe for you, tell your doctor if you have ever had: heart disease or heart rhythm problems, coronary artery disease; heart disease or heart rhythm problems, coronary artery disease; a heart attack, stroke, or congestive heart failure; a heart attack, stroke, or congestive heart failure; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; retinitis pigmentosa (an inherited condition of the eye); retinitis pigmentosa (an inherited condition of the eye); a physical deformity of the penis (such as Peyronie's disease); or a physical deformity of the penis (such as Peyronie's disease); or if you have been told you should not have sexual intercourse for health reasons.
if you have been told you should not have sexual intercourse for health reasons. Viagra can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. It is not clear whether sildenafil is the actual cause of vision loss. Viagra is not expected to harm an unborn baby. Tell your doctor if you are breast-feeding a baby.
Do not give this medicine to anyone under 18 years old without medical advice. Take Viagra exactly as it was prescribed for you. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended. Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. You may take it up to 4 hours before sexual activity. Do not take Viagra more than once per day.
| Country/Region | Approval Status | Regulatory Body |
|---|---|---|
| United States | Approved for ED, PAH | FDA |
| European Union | Approved, generic available | EMA |
| India | Approved, widely available | CDSCO |
| Canada | Approved | Health Canada |
Viagra can help you have an erection when sexual stimulation occurs. Store at room temperature away from moisture and heat. Since Viagra is used as needed, you are not likely to miss a dose.
| Property | Description | Value |
|---|---|---|
| Molecular Formula | - | C22H30N6O4S |
| Molecular Weight | - | 474.58 g/mol |
| Melting Point | - | 187°C |
| Solubility | In water | Very low |
| pKa | - | 6.8 |
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Drinking alcohol with this medicine can cause side effects. Grapefruit and grapefruit juice may interact with sildenafil and lead to unwanted side effects. Avoid the use of grapefruit products while taking sildenafil. Get emergency medical help if you have signs of an allergic reaction to Viagra: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking Viagra and get emergency medical help if you have: heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; vision changes or sudden vision loss; or vision changes or sudden vision loss; or erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).
When flying, never put it into a checked bag. Keep it in your carry-on bag. Don’t worry about airport X-ray machines. You may need to show airport staff the pharmacy label for your medication. Always carry the original prescription-labeled container with you.
Don’t put this medication in your car’s glove compartment or leave it in the car. Be sure to avoid doing this when the weather is very hot or very cold. If you’re taking this drug for PAH, your doctor may monitor your blood pressure and pulse regularly. When filling your prescription, be sure to call ahead to make sure your pharmacy carries it. Many insurance companies require prior authorization for this drug. erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).
Drugs were orally administered, once, every two days for 8weeks, at the end of which five animals were sacrificed per group (batch 1), while the remaining five animals per group were allowed for another 8weeks without drug administration (batch 2). Serum concentration of liver enzymes (AST, ALT and ALP) and bilirubin were assessed in both batches. Serum concentrations of AST, ALT, ALP, total bilirubin and unconjugated bilirubin were significantly (p<0.001) increased in all treated groups (batch 1), while conjugated bilirubin concentration was significantly (p<0.001) reduced in all treated groups, compared with control. Serum concentrations of AST and ALT were significantly reduced in sildenafil (p<0.01), tadalafil (p<0.05), tramadol (p<0.001) and sildenafil+tramadol (p<0.001) recovery groups, compared with their treated groups. Total and unconjugated bilirubin fractions were significantly (p<0.05 and p<0.01, respectively) reduced in tadalafil recovery group, compared with the treated group.
Sildenafil+tramadol recovery group showed significantly (p<0.001) reduced total and unconjugated bilirubin concentrations, compared with the treated group. Chronic administration of PDE5i and tramadol reversibly altered liver functions. Generic name: sildenafil (oral) [ sil-DEN-a-fil ] Other brand names of sildenafil (oral) include: Revatio, Viagra, Vybrique Drug class: Impotence medications Viagra relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body. Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Call your doctor at once if you have: ringing in your ears, or sudden hearing loss; ringing in your ears, or sudden hearing loss; swelling in your hands, ankles, or feet; swelling in your hands, ankles, or feet; a light-headed feeling, like you might pass out.