Sildenafil Patient Tips
Sildenafil under the brand name Viagra is prescribed to treat erectile dysfunction by increasing blood flow to the penis during arousal.
| Property | Description | Value | Notes |
|---|---|---|---|
| Molecular Formula | - | C22H30N6O4S | Chemical composition |
| Molecular Weight | - | 474.6 g/mol | Molar mass |
| Melting Point | - | 195-198°C | Crystalline form |
| Solubility in Water | - | Slightly soluble | At room temperature |
| pH of Aqueous Solution | - | 3.5 - 4.0 | Depends on concentration |
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.
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This can cause your body to process drugs more slowly. As a result, a higher amount of a drug stays in your body for a longer time. This raises your risk for side effects. For children: This drug isn’t recommended in children younger than 18 years. In one study, children with PAH who took this drug had an increased chance for death.
How is sildenafil supplied (dosage forms)?
All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on: how you react to the first dose Strengths: 25 mg, 50 mg, 100 mg Strengths: 25 mg, 50 mg, 100 mg Typical dosage: 50 mg, taken as needed about 1 hour before sexual activity. It can be taken 30 minutes to 4 hours before sexual activity. Maximum dosage: 100 mg once per day. This drug has not been confirmed to be safe or effective in children younger than 18 years.
What should I do if I miss a dose of sildenafil?
Senior dosage (ages 65 years and older) The kidneys, liver, or heart of older adults may not work as well as they used to. This raises your risk of side effects. Your doctor may start you on a lowered dosage of sildenafil. This can help prevent levels of this drug from building up in your body. Typical dosage: 5 or 20 mg, taken three times per day about 4 to 6 hours apart Maximum dosage: 20 mg, taken three times per day about 4 to 6 hours apart This drug shouldn’t be used in children younger than 18 years of age. 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.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ | |
| Viagra Generic | 25mg | 120 + 6 Pills | 125.56€ 119.58€ | |
| Kamagra Soft Tabs | 100mg | 12 Pills | 57.55€ 54.81€ | |
| Viagra Generic | 50mg | 60 + 4 Pills | 83.93€ 79.93€ | |
| Kamagra Oral Jelly | 100mg | 90 + 8 Sachets | 303.56€ 289.10€ | |
| Kamagra Polo | 100mg | 20 Pills | 83.56€ 79.58€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Kamagra | 100mg | 12 Pills | 55.64€ 52.99€ | |
| Viagra Generic | 150mg | 20 Pills | 55.02€ 52.40€ | |
| Viagra Generic | 50mg | 270 + 8 Pills | 198.48€ 189.03€ |
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. Some may be better suited for you than others.
| Country | Legal Status | Prescription Requirement | Notes |
|---|---|---|---|
| USA | Prescription-only medication | Yes | FDA approved |
| UK | Prescription-only | Yes | MHRA regulated |
| India | Over-the-counter and prescription | Both are possible | Varies by state |
| Australia | Prescription only | Yes | TGA regulated |
Talk with your doctor about other drug options that may work for you.
- The discovery of sildenafil began with research on heart drugs.
- It was found to cause vasodilation as a side effect.
- Pfizer refined the drug for erectile dysfunction.
- It became a blockbuster drug upon FDA approval.
- Sildenafil has helped millions worldwide.
- It has changed perceptions about male sexual health.
- Ongoing research explores new formulations.
- Awareness campaigns promote safe usage.
Sildenafil and tadalafil are alike because they both can treat ED and PAH.
Detection in biological fluids
Don’t store this medication in moist or damp areas, such as bathrooms. A sildenafil oral jelly 100mg prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled. Your doctor will write the number of refills authorized on your prescription. When flying, never put it into a checked bag.
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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.
Less common
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. This means your doctor may need to get approval from your insurance company before your insurance company will pay for the prescription. However, tadalafil has a few distinctions from sildenafil.
- Sildenafil citrate is a medication used primarily to treat erectile dysfunction.
- It belongs to the class of drugs called phosphodiesterase type 5 inhibitors.
- Sildenafil was originally developed to treat angina and hypertension.
- The drug works by increasing blood flow to the penis during stimulation.
- It is commonly sold under the brand name Viagra.
- Sildenafil is available by prescription and as generics.
- The typical dose is 50 mg taken about an hour before activity.
- Common side effects include headaches, flushing, and nasal congestion.
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 downside, however, is that side effects tend to last longer too.
| Side Effect | Frequency | Severity | Management Tips |
|---|---|---|---|
| Headache | Very common | Mild to moderate | Analgesics if needed |
| Flushing | Common | Mild | Cool environment, hydration |
| Dyspepsia | Common | Mild | Dietary adjustments |
| Nasal Congestion | Less common | Mild | Decongestants if necessary |
| Dizziness | Less common | Mild | Avoid sudden movements |
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. However, Viagra is marketed and prescribed strictly for erectile dysfunction, while generic sildenafil can be prescribed for PAH as well.
- Sildenafil citrate is also used in veterinary medicine.
- It helps treat pulmonary hypertension in animals.
- Studies explore its effects on canine health.
- Animal dosage differs from human recommendations.
- Veterinary formulations are specially designed.
- Usage should always be under professional supervision.
- Research continues into broader applications in animals.
- Ethical guidelines govern its veterinary use.
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. USP Certificates/Product Information Sheets and Valid Use Dates View the USP Certificate or Product Information Sheet in the table above to view additional product details, including available label text and storage information. View the USP Certificate sildenafil tablet manforce 50 mg or Product Information Sheet in the table above to view additional product details, including available label text and storage information.
The History of Sildenafil Citrate, AKA Viagra
For PAH: Take your dose as soon as you remember. But if you remember just a few hours before your next scheduled dose, take only one dose. Never try to catch up by sildenafil citrate tablets 50mg taking two doses at once. This could result in dangerous side effects. How to tell if the drug is working: For ED: You should be able to get and maintain an erection when sexually aroused.
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For PAH: You should be able to exercise more easily. Your doctor will also check you to determine if this drug is working. Keep these considerations in mind if your doctor prescribes sildenafil for you. You can take this drug with or without food. You can cut or crush the tablet.
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When you take the drug depends on the condition being treated:For ED: You can take this drug at any time of day.For PAH: Take this drug three times per day about 4–6 hours apart. Take it at the same time every day. For ED: You can take this drug at any time of day. For PAH: Take this drug three times per day about 4–6 hours apart. Store sildenafil tablets at room temperature between 59°F and 86°F (15°C and 30°C). 1The Harmonized System (HS) code provided on this webpage is for informational purposes only and is subject to change without notice. The exporter and/or importer of record is responsible for determining the accuracy of items at the time of export/import per U.S. regulations. USP is not responsible for the accuracy or completeness of the information furnished. 2USP procures materials worldwide and most foreign materials do not undergo a fundamental change during the packaging process at USP that would substantially transform the item resulting in a country of origin change from the foreign origin to the United States. Under the Rules of Origin the original foreign country of origin would remain. Animal, Plant, Fish) may require special country importation requirements.USP recommends you contact your country competent authorities to determine if any certifications, permits or licenses may be required prior to ordering.Material Origins are found within the Product under Origin Information. Sildenafil is used to treat erectile dysfunction (ED) in men or pulmonary arterial hypertension (PAH) in both men and women, depending on the brand. Viagra and Vybrique are used for ED and Revatio is used for PAH. Sildenafil works by blocking the action of an enzyme called cGMP-specific phosphodiesterase type-5 (PDE-5). This enzyme breaks down cGMP, a substance that induces smooth muscles to relax.
The Key Differences Between Viagra and Sildenafil
Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages. Always speak with your doctor or pharmacist about dosages that are right for you. Sildenafil oral tablet is used for short-term treatment of ED and long-term treatment of PAH. It comes with serious risks if you don’t take it as prescribed.
More common
If you stop taking the drug suddenly or don’t take it at all: For ED: Your ED symptoms won’t improve. For PAH: Your condition won’t improve and may get worse. Also, you won’t be able to exercise. If you miss doses or don’t take the drug on schedule: For ED: Your ED symptoms won’t improve. For PAH: This medication may not work as well or may stop working completely.
Pulmonary hypertension
For this drug to work well, a certain amount needs to be in your body at all times. If you take too much: You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include: If you think you’ve taken too much of this drug, call your doctor or local poison control center. If your symptoms are severe, call 911 or go to the nearest emergency room right away. What to do if you miss a dose: For ED: Take your dose 30 minutes to 4 hours before your next sexual activity. Blocking PDE-5 means increased levels of cGMP within the smooth muscles which promotes muscle relaxation and vasodilation (a widening of blood vessels). High levels of PDE-5 are found in the penis, lungs, and retina. PDE-5 is also found throughout the body within the smooth muscle cells of the blood vessels and muscles. Sildenafil belongs to the drug class called phosphodiesterase (PDE) type 5 inhibitors.
- Sildenafil citrate was approved by the FDA in 1998.
- Its discovery revolutionized the treatment of erectile dysfunction.
- The medication requires sexual stimulation to be effective.
- It is not an aphrodisiac; it facilitates natural response.
- Overdose symptoms may include severe hypotension.
- Recreational use of sildenafil without prescription is risky.
- Combining with alcohol can increase side effects.
- It should be stored at room temperature away from moisture.
Sildenafil (Viagra, Vybrique brands and generic) is used to treat erectile dysfunction (ED, impotence).