Sildenafil Citrate Oral Suspension for Managing Erectile Dysfunction: A Systematic Review and a Consensus Report from the Italian Society of Andrology (SIA)
You might assume a higher dosage of sildenafil leads to a firmer erection or better sex, but this isn’t always the case.
- Common side effects include headaches, flushing, and nasal congestion.
- Rarely can cause vision changes, such as blurred vision or color tinge.
- Serious side effects require immediate medical attention.
In fact, taking too much sildenafil can lead to some serious side effects, like a sudden decrease in blood pressure. It’s best to stick with your prescribed dosage and follow the patient information leaflet your healthcare provider gives you.
- Sildenafil 12.5 mg may be prescribed for pulmonary hypertension as well.
- Dose adjustments may be necessary based on age or medical history.
- Regular medical checkups help monitor treatment effects.
If you find that a particular dose isn’t working as well as you had hoped, make another appointment with your provider and ask if you can revisit your dosage or explore other treatment options.
About this article
At the moment, 20 mg Viagra does not exist — but you can get Revatio in a 20 mg tablet, and it can be prescribed off-label for ED. In the same way that you can get generic Viagra as a 25 mg sildenafil tablet, you can also get generic Revatio as a 20 mg sildenafil tablet. It may be marked as a c89 pill or described as generic Viagra because these drugs both contain sildenafil. The only chemical difference is the dosage. If you’re taking a 20 mg generic Viagra white pill, chances are you’re actually taking generic Revatio.
Intravenous Solution
Viagra is available in dosages of 25 mg, 50 mg, and 100 mg. Currently, 100 mg sildenafil is the highest dosage approved by the FDA. Revatio is available in 20 mg tablets. There’s no one-size-fits-all solution when it comes to the ideal sildenafil dosage. Your dosage will depend on your health needs and the reason you’re taking the medication. To get the best results from Viagra, it’s important to take the right dosage. As mentioned, 20 mg sildenafil is FDA-approved for pulmonary arterial hypertension, not erectile dysfunction. If you take a 20 mg dose of sildenafil, it might improve your erections, but it might not. Although Viagra can come in as small a dose as 25 mg, the 50 mg tablets are usually the starting dosage.
- Sildenafil 12.5 mg is a lower dose used for mild erectile dysfunction.
- It helps relax blood vessels to increase blood flow.
- Often prescribed when starting treatment or for lighter symptoms.
If you experience uncomfortable side effects, your dosage could decrease to 25 mg.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Kamagra Soft Tabs | 100mg | 60 + 4 Pills | 180.59€ 171.99€ | |
| Viagra Generic | 200mg | 30 + 2 Pills | 83.07€ 79.11€ | |
| Viagra Generic | 150mg | 180 + 10 Pills | 236.46€ 225.20€ | |
| Viagra Generic | 50mg | 270 + 8 Pills | 198.48€ 189.03€ | |
| Viagra Generic | 100mg | 20 Pills | 45.58€ 43.41€ | |
| Viagra Generic | 25mg | 60 + 4 Pills | 71.99€ 68.56€ | |
| Kamagra | 100mg | 120 + 6 Pills | 330.74€ 314.99€ | |
| Kamagra Soft Tabs | 100mg | 180 + 8 Pills | 425.45€ 405.19€ | |
| Viagra Generic | 200mg | 120 + 8 Pills | 204.80€ 195.05€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Viagra Generic | 200mg | 60 + 4 Pills | 125.19€ 119.23€ | |
| Viagra Generic | 150mg | 20 Pills | 55.02€ 52.40€ | |
| Viagra Generic | 25mg | 120 + 6 Pills | 125.56€ 119.58€ | |
| Kamagra Soft Tabs | 100mg | 12 Pills | 57.55€ 54.81€ | |
| Viagra Generic | 50mg | 90 + 6 Pills | 107.37€ 102.26€ |
Patients older than 65 and those with kidney or liver problems may start on a 25 mg dose. Viagra is considered an effective treatment for erectile dysfunction, but its efficacy depends on the dosage. In clinical trials, 63 percent of participants who took 25 mg sildenafil reported an improvement in their erections, compared to 74 percent of those who took 50 mg and 82 percent of those who took 100 mg.
- This dose is often used as a starting point before increasing if needed.
- Combining with high-fat meals may slow absorption.
- Avoid grapefruit juice, as it can affect sildenafil metabolism.
With that said, other erectile dysfunction treatments — like tadalafil (Cialis®) and vardenafil (Levitra®) — are available in a 20 mg dosage, but these are different medications, so their dosages aren’t directly comparable to sildenafil.
Estimated Cost of Medication
Keep reading to find out if a sildenafil 20 mg dosage for erectile dysfunction exists, the most common sildenafil dosages, potential side effects, and more. Most people assume they know what Viagra does — it causes erections, right? While this is true, a few uses of sildenafil extend beyond improving sexual activity. Besides being sold as Viagra, sildenafil is the active ingredient in Revatio. As we mentioned above, this brand-name drug is approved by the U.S.
Why it’s used
Food and Drug Administration (FDA) for treating pulmonary hypertension, a type of high blood pressure affecting arteries in the lungs and the right side of the heart. Revatio can prevent this condition from worsening. Sildenafil may also be used off-label to treat: Raynaud phenomenon (narrowing blood vessels in extremities such as fingers and toes) Raynaud phenomenon (narrowing blood vessels in extremities such as fingers and toes) Sildenafil sildenafil for women has a variety of uses because it’s a phosphodiesterase type 5 (PDE5) inhibitor. PDE5 inhibitors are medications that improve blood flow to certain tissues by widening the blood vessels. They’re best known for increasing blood flow to the penis, allowing for erections upon sexual stimulation. Whether you’re experiencing poor erectile function or have a cardiovascular condition, sildenafil can drastically improve your symptoms.
What happens if I overdose?
Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor. Tell your healthcare provider about all the medicines you take, including prescription and over-the-countermedicines, vitamins, and herbal supplements. Sildenafil may affect the way other medicines work, and other medicines may affect the way sildenafil works, causing side effects. Especially tell your healthcare provider if you take: Nitrates for chest pain or heart problems. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate.
Dosage Modifications
Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Taking sildenafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure Alpha-blockers are sometimes prescribed for prostate problems orhigh blood pressure. In some patients, the use of sildenafil with alpha-blockers can lead to a drop in blood pressure or fainting Other drugs to treat high blood pressure or a prostate disorder Medicines to treat HIV, such as protease inhibitors, such as ritonavir and saquinavir Some types of oral antifungal medicines, such as ketoconazole and itraconazole Some types of antibiotics, such as erythromycin Other medicines that treat high blood pressure Medicines or treatments for ED, such as avanafil (Stendra), tadalafil (Cialis), or vardenafil (Levitra). Tell your doctor about all other medications you use for erectile dysfunction. Ask your healthcare provider or pharmacist for a list of these medicines if you are not sure. The medication is generally safe, and research suggests it won’t cause any long-term health issues.
| Country | Legal Status | Can be OTC? | Prescription Required? |
|---|---|---|---|
| United States | Prescription only | No | Yes |
| European Union | Prescription required | No | Yes |
| India | Available OTC in some locations | Yes | No |
| Australia | Prescription required | No | Yes |
But that doesn’t mean it’s completely without risks or side effects. If you experience priapism (a prolonged, painful erection) or any other serious adverse effects — like shortness of breath, irregular heartbeat, or loss of vision — seek emergency medical attention.
Summary or Key Points
Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine. Other drugs may interact with sildenafil, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here. Store sildenafil tablets and oral film at room temperature, between 20°C and 25°C (68°F and 77°F). Store sildenafil reconstituted oral suspension below 30°C (86°F) or in a refrigerator between 2°C to 8°C (36°F to 46°F).
Mechanism of Action
Throw away the reconstituted oral suspension after 60 days. Active ingredient: sildenafil citrateInactive ingredients: dextrose and water for injection. Contains no ingredients made from gluten-containing grain (eg, wheat, barley, or rye). Revatio is distributed by Pfizer Labs, Division of Pfizer Inc., NY, NY 10017. Viagra is distributed by Pfizer Labs, Division of Pfizer Inc., NY, NY 10017. Sildenafil might also be dangerous for people with a history of certain medical conditions, including: Allergic reactions to Viagra or any PDE5 inhibitor Allergic reactions to Viagra or any PDE5 inhibitor Blood problems like hemophilia, leukemia, or sickle cell anemia Blood problems like hemophilia, leukemia, or sickle cell anemia Conditions affecting penis shape, like Peyronie’s disease or a curved penis Conditions affecting penis shape, like Peyronie’s disease or a curved penis Eye problems, such as retinitis pigmentosa, vision loss, or NAION (non-arteritic anterior ischemic optic neuropathy) Eye problems, such as retinitis pigmentosa, vision loss, or NAION (non-arteritic anterior ischemic optic neuropathy) Heart problems (e.g., having had a heart attack or stroke) Heart problems (e.g., having had a heart attack or stroke) There are a few sildenafil drug interactions you need to look out for, too. An interaction is when one drug, like sildenafil, causes a negative reaction when mixed with another medication, supplement, or substance.
What is sildenafil?
You are encouraged to speak with your prescriber as to the appropriate use of any medication. Wedgewood Pharmacy's compounded veterinary preparations are not intended for use in food and food-producing animals. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Be ready for sex whenever you're in the mood When it comes to penises, size isn’t everything.
Comparing Sildenafil vs. Tadalafil Dosage
But when it comes to erectile dysfunction (ED) medications, dose size can make a difference. Sildenafil citrate is a generic drug found in several types of prescription meds. It’s most popularly known as the active ingredient in Viagra® and a treatment for ED, but sildenafil is also sold as Revatio®, a medication marketed for treating pulmonary arterial hypertension. Depending on your health needs, your dosage of Viagra might be 25 milligrams (mg), 50 mg, or 100 mg. While sildenafil 20 mg tablets do exist, they’re FDA-approved for pulmonary arterial hypertension, not ED. Other PDE5 inhibitors, including erectile dysfunction medications like tadalafil (Cialis), avanafil (Stendra®), or vardenafil (Levitra or Staxyn®) Other PDE5 inhibitors, including erectile dysfunction medications like tadalafil (Cialis), avanafil (Stendra®), or vardenafil (Levitra or Staxyn®) Nitrates for angina (chest pain), such as nitroglycerin (Nitrostat® or NitroMist®), isosorbide mononitrate, and isosorbide dinitrate (Isordil®) Nitrates for angina (chest pain), such as nitroglycerin (Nitrostat® or NitroMist®), isosorbide mononitrate, and isosorbide dinitrate (Isordil®) Sildenafil may also have minor interactions with the following substances: Certain antifungal drugs, such as ketoconazole and itraconazole Certain antifungal drugs, such as ketoconazole and itraconazole Some antibiotics, like erythromycin and clarithromycin (Biaxin®) Some antibiotics, like erythromycin and clarithromycin (Biaxin®) HIV protease inhibitors, like saquinavir mesylate (Invirase®) and ritonavir (Norvir®) HIV protease inhibitors, like saquinavir mesylate (Invirase®) and ritonavir (Norvir®) If you’ve been prescribed any of the above medications, it’s a good idea to ask a healthcare professional whether you can safely take them with sildenafil.
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Drug Interactions
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