Oral Sildenafil in the Treatment of Erectile Dysfunction

Ask your sildenafil 45 mg chewable tablets pharmacist to recommend an appropriate measuring device.

Tell your healthcare provider about all of your health conditions and any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using.

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Current state of the problem, Andrology and Genital Surgery, 25, 4, (33-40), (2026). Emerging Trends and Research Focus in Erectile Dysfunction Treatment: A 1993–2023 Bibliometric Analysis, Andrologia, 2026, 1, (2026). Sildenafil is commonly used for the following conditions. Erectile dysfunction, a condition where you have trouble getting or keeping an erection Pulmonary arterial hypertension, a condition where you have high blood pressure in the blood vessels that carry blood from your heart to your lungs Sildenafil may also be used for other conditions as determined by your healthcare provider. Sildenafil works by blocking an enzyme in the body called PDE5, which helps relax certain blood vessels.

Product Overview

For erectile dysfunction, it increases blood flow to the penis when aroused. This makes it easier to get and keep an erection. For pulmonary arterial hypertension, sildenafil relaxes the blood vessels in the lungs. This lowers blood pressure and reduces strain on the heart. 10 mg/mL powder for oral suspension 20 mg, 25 mg, 50 mg, 100 mg oral tablets Sildenafil is also available in an injectable form that is usually given by a healthcare provider in a hospital or clinic.

Long-term efficacy and safety of oral Viagra (sildenafil citrate) in men with erectile dysfunction and the effect of randomized treatment withdrawal

Sildenafil oral tablets should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). It can be exposed to temperatures between 59 F to 86 F (15 C to 30 C) for shorter periods of time, such as when transporting it. Sildenafil oral liquid should be stored at room temperature below 86 F (30 C) or in the refrigerator, between 36 F to 46 F (2 C to 8 C). Throw away any remaining liquid 60 days after it has been mixed for you by a pharmacist or healthcare professional. Sildenafil injection is usually given by a healthcare provider in a hospital or clinic. This will help them determine if sildenafil is right for you.

In particular, make sure that you discuss any of the following.

Dose Adjustments

You will not store it at home. The most common side effects of sildenafil are listed below. These side effects may vary depending on the condition that is being treated. Tell your healthcare provider if you have any of these side effects that bother you. Pain in your muscles, back, arms, or legs There may be other side effects of sildenafil that are not listed here.

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Contact your healthcare provider if you think you are having a side effect of a medicine. In the U.S., you can report side effects to the FDA at or by calling 800-FDA-1088. In Canada, you can report side effects to Health Canada at or by calling 866-234-2345. While less common, the most serious side effects of sildenafil are described below, along with what to do if they happen. Sildenafil may cause allergic reactions, which can be serious.

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Stop taking sildenafil and get help right away if you have any of the following symptoms of a serious sildenafil cenforce allergic reaction. Swelling of the face, lips, mouth, tongue, or throat Itching, skin rash, or pale red bumps on the skin called hives Sildenafil may cause an unwanted erection that is persistent, painful, and that may occur without sexual arousal. Permanent damage to the penis may occur if priapism is not treated quickly. Stop taking sildenafil and get emergency help if you have any of the following symptoms of priapism. Erection lasting for more than four hours Erection that is unrelated to sexual stimulation Sildenafil can cause mild, temporary vision changes such as seeing a blue tint, abnormal colors, blurry vision, or sensitivity to light. Tell your healthcare provider if you have any of the following. Heart problems, such as heart rhythm problems, chest pain, or heart failure Heart attack, stroke, or heart surgery within the past six months High blood pressure that is still too high despite taking medicines for it Peyronie's disease, or a penis with an abnormal curve or shape An erection lasting longer than four hours A blood disorder, such as sickle cell anemia An inherited eye disease called retinitis pigmentosa Vision loss, or a problem with the nerve between your eyes and brain (optic nerve) Health conditions or factors that raise the risk of optic nerve problems, such as diabetes, high cholesterol, smoking, being older than 50, or having a “crowded disc,” which is something an eye doctor may see in an eye exam Pulmonary veno-occlusive disease, a condition where blood vessels in the lungs are blocked It is not known if or how sildenafil could affect pregnancy or harm an unborn baby. Tell your healthcare provider if you are or plan to become pregnant. Tell your healthcare provider if you are breastfeeding or plan to breastfeed. Your healthcare provider will advise you if you should take sildenafil while breastfeeding. If you take sildenafil after you eat a high-fat meal, such as a burger and fries, it may take longer to start working.

Proper Use

Before taking sildenafil, tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. See the Interactions section for more details. Do not take sildenafil unless it has been prescribed to you by a healthcare provider. Do not share sildenafil with other people, even if they have the same condition as you. Keep sildenafil out of the reach of children.

Pregnancy and breastfeeding while taking sildenafil

If you keep sildenafil oral liquid in a refrigerator, make sure to keep it away from children who also use the refrigerator. Sexual activity can put extra strain on your heart, which may be unsafe for people with certain health problems, such as a recent heart attack. Talk to your healthcare provider to see if your heart is strong enough for sex. If you feel chest pain, dizziness, or nausea during sex, stop and contact your healthcare provider right away. Sildenafil does not protect against sexually transmitted infections, including HIV. Your healthcare provider may recommend limiting or avoiding grapefruit while taking sildenafil. Grapefruit or grapefruit juice can raise sildenafil levels in your body, which can increase the risk of side effects. There are no known interactions between sildenafil and alcohol. Always tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. In particular, make sure that you discuss if you are using any of the following before taking sildenafil.

Tell your healthcare provider about all medicines that you take or have recently taken. This may not be a complete list of medicines that can interact with sildenafil. If you or someone else has used too much sildenafil, get medical help right away, call 911, or contact a Poison Control center at 800-222-1222. For this use, sildenafil is used only when needed.

• Sildenafil is used to treat erectile dysfunction and pulmonary hypertension.
• It belongs to the class of phosphodiesterase inhibitors.
• Oral sildenafil should be taken about 30-60 minutes before activity.

Take it as your healthcare provider recommends, which is usually between 30 minutes to four hours before planned sexual activity. Do not take double or extra doses.

Study selection

Sildenafil belongs to a group of medicines, known as phosphodiesterase-5 (PDE-5) inhibitors, which are used to treat erectile dysfunction or pulmonary arterial hypertension. You should not take more than one PDE-5 inhibitor medicine. Medicines in this group include avanafil (Stendra), sildenafil (Viagra, Revatio, and others), tadalafil (Cialis and others), and vardenafil (Levitra, Staxyn). Use an accurate measuring device to measure your dose of sildenafil oral liquid. A household spoon is not an accurate measuring device and may cause you to take the wrong dose. For this use, take sildenafil as your healthcare provider recommends, which is usually three times a day.

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and only take the next dose.

• Sildenafil can improve exercise capacity in pulmonary hypertension patients.
• Regular monitoring may be required for long-term use.
• Be aware of potential side effects related to blood pressure changes.

Ask your healthcare provider if you are unsure what to do after a missed dose. This survey is being conducted by the WebMD marketing sciences department. Aspargo plans to file a new drug application with the FDA to support regulatory approval of ASP-001 for erectile dysfunction in the United States. Findings from a recent phase 1 trial show that ASP-001, an investigational sildenafil oral spray for patients with erectile dysfunction, achieved therapeutic levels at a significantly faster rate compared with traditional sildenafil citrate tablets (Viagra), announced Aspargo Labs, the developer of the formulation, in a news release.1 “The rapid and enhanced absorption profile demonstrated by ASP-001 in this phase 1 study highlight its potential to address key unmet needs in the treatment of erectile dysfunction,” said Steven Kaplan, MD, Chief Medical Officer at Aspargo Labs, director of the Men’s Wellness Program at the Mount Sinai Health System, and a professor at the Icahn School of Medicine at Mount Sinai.1 “Many patients struggle with the inconvenience and lack of spontaneity associated with planning ahead to take a tablet and the requirement to fast or time their dosing.

Methods of synthesis

Though rare, some people have reported permanent vision loss. Stop taking sildenafil and get help right away if you have sudden vision loss in one or both eyes. Sudden hearing loss has been reported after taking sildenafil. This may occur along with dizziness and ringing in the ears. Stop taking sildenafil and get help right away if you have sudden hearing loss or suddenly have trouble hearing as well as usual.

Allergic reaction

Sildenafil may cause a mild and temporary drop in blood pressure. You may be at a higher risk if you have certain health conditions or take blood pressure medicines. If you feel faint or dizzy, lie down. Tell your healthcare provider right away if you have any of the following symptoms of low blood pressure. You may be at higher risk for this if you take a blood sildenafil pick up thinner medicine.

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Tell your healthcare provider if you get nosebleeds often while taking sildenafil. If your nosebleed is severe or will not stop after applying pressure, get help right away. People who are allergic to any of the following should not take sildenafil. Any of the ingredients in the specific product dispensed Your pharmacist can tell you all of the ingredients in the specific sildenafil products they stock. Sildenafil should not be taken while you are using certain other medicines.