Label: SILDENAFIL tablet, film coated
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.
Mechanism of action
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 another 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. Choose an option Alt text (alternative text) helps when people can’t see the image or when it doesn’t load.
Your questions answered
Aim for 1-2 sentences that describe the subject, setting, or actions. This is used for ornamental images, like borders or watermarks. This alt text was created automatically and may be inaccurate. Downloading alt text AI model (0 of 0 MB) Automatic alt text Create alt text automaticallyDeleteDownload Suggests descriptions to help people who can’t see the image or when the image doesn’t load. Runs locally on your device so your data stays private. 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 pfizer sildenafil 100 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. Sildenafil may cause a mild and temporary drop in blood pressure.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 150mg | 10 Pills | 36.73€ 34.98€ | |
| Kamagra Polo | 100mg | 84 + 4 Pills | 244.49€ 232.85€ | |
| Kamagra Polo | 100mg | 272 + 12 Pills | 622.94€ 593.28€ | |
| Viagra Generic | 200mg | 270 + 10 Pills | 379.76€ 361.68€ | |
| Kamagra Oral Jelly | 100mg | 220 + 18 Sachets | 662.24€ 630.70€ | |
| Viagra Generic | 50mg | 90 + 6 Pills | 107.37€ 102.26€ | |
| Kamagra Oral Jelly | 100mg | 90 + 8 Sachets | 303.56€ 289.10€ | |
| Viagra Generic | 50mg | 120 + 6 Pills | 129.64€ 123.47€ | |
| Viagra Generic | 100mg | 120 + 6 Pills | 149.50€ 142.38€ | |
| Viagra Generic | 200mg | 20 Pills | 61.69€ 58.75€ | |
| Kamagra | 100mg | 120 + 6 Pills | 330.74€ 314.99€ |
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.
Further information
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. Stop taking sildenafil and get help right away if you have any of the following symptoms of a serious allergic reaction. Tell your healthcare provider right away if you have any of the following symptoms of low blood pressure.
GPhC Regulated Pharmacy
If you’re experiencing symptoms of severe side effects while taking sildenafil, talk with your doctor right away. If you’d like to learn more about sildenafil, talk with your doctor or pharmacist. They can help answer any questions you have about side effects from taking the drug. A generic drug and its brand-name version contain the same active ingredient, so they’re expected to have the same side effects. Referring to the following articles about sildenafil and Viagra can provide you with additional information: For details about other aspects of sildenafil, refer to this article.
Less common
To learn how sildenafil compares with Viagra, read this article. If you’d like to learn about sildenafil and cost, see this article. For details about your condition, see our hypertension hub. You can also view our men’s health hub and this list of erectile dysfunction and premature ejaculation articles. Disclaimer: Medical News Today has made every effort to make certain that all information is factually correct, comprehensive, and up to date. You may be at higher risk for this if you take a blood thinner medicine. 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.
| Interacting Drug | Effect | Recommendation | Notes |
|---|---|---|---|
| Nitrates | Severe hypotension | Avoid use together | Use alternative treatments |
| Alpha-blockers | Additive blood pressure lowering | Use cautiously, start low dose | Monitor BP closely |
| CYP3A4 inhibitors (e.g., ketoconazole) | Increased sildenafil levels | Dose adjustment recommended | Monitor for side effects |
| Fatty foods | Delayed absorption | Take sildenafil on an empty stomach or low-fat meal | Affects onset timing |
People who are allergic to any of the following should not take sildenafil.
| Food Type | Effect on Absorption | Interaction with Alcohol | Clinical Significance |
|---|---|---|---|
| High-fat meals | Delays absorption | No direct interaction | Typically prolongs onset time |
| Alcohol consumption | No significant effect (modest amounts) | Can enhance side effects like dizziness, hypotension | Moderate intake is generally safe, excessive alcohol can impair efficacy |
| Light meal | Minimal effect | None | Safe to take with meals |
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. 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.
- Use of sildenafil under medical supervision helps prevent adverse effects.
- Seek immediate medical help if you experience chest pain while using.
- The drug is not a cure but helps manage erectile dysfunction symptoms.
- Notify your doctor if you experience any allergic reactions.
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. 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.
Related/similar drugs
Animal studies* did not show harm to the fetus when the drug was exposed to pregnant animals. However, keep in mind that animal studies don’t always reflect what will happen in humans. If you’re pregnant or can become pregnant, talk with your doctor. They’ll review the risks and benefits with you and advise whether sildenafil treatment is right for you. In certain cases, your doctor may recommend that you continue taking sildenafil during pregnancy.
Jet lag research
Sildenafil may pass into breast milk, but it isn’t known how this could affect a child who is breastfed. If you are breastfeeding or planning to breastfeed, talk with your doctor. They can review the risks and benefits of taking sildenafil while breastfeeding. If you are taking sildenafil for erectile dysfunction or pulmonary arterial hypertension, it’s possible to experience side effects. Most side effects are mild to moderate in severity. 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. 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).
Side Effects and Drug Interactions
Alt text editor Show alt text editor right away when adding an image Helps you make sure all your images have alt text. 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. For erectile dysfunction, it increases blood flow to the penis when aroused.
Mechanism of Action
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 sildenafil 50mg tablet tablets Sildenafil is also available in an injectable form that is usually given by a healthcare provider in a hospital or clinic. Sildenafil oral tablets should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). 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.
- Consult your doctor if you experience vision changes or ringing in ears.
- Sildenafil can interact with nitrates, causing dangerous hypotension.
- Use with caution if you have heart problems or low blood pressure.
- Report any persistent or painful erections lasting over 4 hours.
Ask your 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. This will help them determine if sildenafil is right for you. In particular, make sure that you discuss any of the following. Tell your healthcare provider if you have any of the following.
8.2 Lactation
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. You will not store it at home.
The Highest Sildenafil Dose: 100mg
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. Contact your healthcare provider if you think you are having a side effect of a medicine. 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.
- Sildenafil 25 mg tablets are used to treat erectile dysfunction.
- They work by increasing blood flow to the penis.
- Typically taken 30-60 minutes before sexual activity.
- Do not exceed one dose per day to avoid side effects.