Tell your healthcare provider if you are or plan to become pregnant. Tell your healthcare provider if you are breastfeeding or plan to breastfeed.
- Contraindications include use with nitrates and recent heart attack.
- Patients with contraindications should avoid sildenafil entirely.
- Visual disturbances including blue-tinted vision may occur.
- Use caution in patients with liver or kidney impairment.
- Sildenafil can interact with certain antibiotics and antifungals.
- Always inform your doctor about other medications you're taking.
- It does not protect against sexually transmitted infections.
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.
| Brand Name | Manufacturer | Formulation Type | Typical Dosage | Notes |
|---|---|---|---|---|
| Viagra | Pfizer | Tablet | 25, 50, 100 mg | Most well-known brand |
| Revatio | Pfizer | Tablet | 20 mg | For pulmonary hypertension |
| Sildenafil Citrate | Various generic manufacturers | Tablet | 25, 50, 100 mg | Generic versions available |
| Kamagra | Ajanta Pharma | Oral Gel | 100 mg | Used off-label in some countries |
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. Take it as your healthcare provider recommends, which is usually between 30 minutes to four hours before sildenafil premature ejaculation planned sexual activity.
- Sildenafil’s development marked a breakthrough in ED treatment.
- It has revolutionized sexual health for many men globally.
- The drug’s mechanism enhances nitric oxide effects.
- Many patients report improved confidence with sildenafil use.
- Research continues on new formulations and delivery methods.
- Public health campaigns promote safe and effective usage.
- Awareness of contraindications reduces health risks.
Do not take double or extra doses. 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.
- Sildenafil citrate may cause a drop in blood pressure.
- Do not consume large quantities of grapefruit juice while on sildenafil.
- Pregnant or breastfeeding women should not use sildenafil without guidance.
- The drug does not improve libido, only facilitates blood flow.
- It is not intended for recreational use or enhancement.
- Psychological factors can also affect the efficacy of sildenafil.
- Regular medical check-ups are recommended for long-term users.
If it is almost time for your next dose, skip the missed dose and only take the next dose.
Overdose/Missed Dose
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. 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.
Drug Interactions Table
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. If you keep sildenafil oral liquid in a refrigerator, make sure to keep it away from children who also use the refrigerator. 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. Sildenafil is a treatment for erectile dysfunction. It works by increasing blood flow to your penis.
| Patient Group | Starting Dose | Maximum Dose | Frequency | Notes |
|---|---|---|---|---|
| Adult Men with ED | 50 mg | 100 mg | Once per day, 1 hour before sex | Adjust based on efficacy and side effects |
| Patients with Liver Impairment | 25 mg | 50 mg | Once daily | Lower doses recommended |
| Elderly Patients | 25-50 mg | 100 mg | As needed | Monitor for side effects |
The brand name for this medication is Viagra®.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 50mg | 60 + 4 Pills | 83.93€ 79.93€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Kamagra Oral Jelly | 100mg | 63 + 7 Sachets | 224.18€ 213.50€ | |
| Viagra Generic | 50mg | 90 + 6 Pills | 107.37€ 102.26€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Viagra Generic | 25mg | 30 + 4 Pills | 47.97€ 45.69€ | |
| Viagra Generic | 25mg | 360 + 10 Pills | 213.68€ 203.50€ | |
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ | |
| Kamagra Soft Tabs | 100mg | 120 + 6 Pills | 311.78€ 296.93€ | |
| Viagra Generic | 150mg | 180 + 10 Pills | 236.46€ 225.20€ | |
| Viagra Generic | 150mg | 90 + 6 Pills | 147.18€ 140.17€ | |
| Viagra Generic | 200mg | 360 + 10 Pills | 481.98€ 459.03€ | |
| Kamagra Polo | 100mg | 32 Pills | 125.88€ 119.89€ | |
| Kamagra Soft Tabs | 100mg | 84 + 4 Pills | 233.05€ 221.95€ |
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| Property | Description | Value | Units |
|---|---|---|---|
| Molecular Weight | The mass of one mole of sildenafil citrate | 474.58 | g/mol |
| Chemical Formula | Molecular composition | C22H30N6O4S | |
| Solubility | Water solubility | Slightly soluble | at 25°C |
| pH of Solution | Typical pH when dissolved in water | 3.8 - 4.2 | |
| Melting Point | The temperature at which it melts | 196 - 198 | °C |
We do not endorse non-Cleveland Clinic products or services. SILDENAFIL (sil DEN a fil) treats erectile dysfunction (ED). It works by increasing blood flow to the penis, which helps to maintain an erection. This medicine may be used for other purposes; ask your health care sildenafil 100g provider or pharmacist if you have questions.
In case of emergency/overdose
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.
Serious Side Effects
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. Though rare, some people have reported permanent vision loss. They need to know if you have any of these conditions: History of blood diseases, such as sickle cell anemia or leukemia Stomach ulcers, other stomach or intestine problems An unusual or allergic reaction to sildenafil, other medications, foods, dyes, or preservatives Take this medication by mouth with a glass of water. Follow the directions on the prescription label.
Ongoing Research and Future Applications
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. 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. The dose is usually taken 1 hour before sexual activity. You should not take the dose more than once per day. Do not take your medication more often than directed. Talk to your care team about the use of this medication in children. This medication is not used in children for this condition. Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once. NOTE: This medicine is only for you. Do not share this medicine with others. Do not take this medication with any of the following: Nitrates, such as amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin This medication may also interact with the following: Other medications may affect the way this medication works. Talk with your care team about all of the medications you take. They may suggest changes to your treatment plan to lower the risk of side effects and to make sure your medications work as intended. This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs.
- Sildenafil binds to phosphodiesterase type 5 enzymes in tissues.
- It was initially developed by Pfizer.
- The drug’s patent expired in many countries, increasing generic availability.
- It can improve quality of life for men with ED and pulmonary hypertension.
- Discuss potential interactions and health conditions with your doctor.
- Usage guidelines differ for ED and pulmonary hypertension treatment.
- Follow the prescribed dose and avoid exceeding recommended limits.
Some items may interact with your medicine. Visit your care team for regular checks on your progress.
How should I take sildenafil?
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. Sildenafil may cause a mild and temporary drop in blood pressure.
Does Viagra increase the size of a man’s penis?
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 thinner medicine. Tell your healthcare provider if you get nosebleeds often while taking sildenafil. Tell your care team if your symptoms do not start to get better or if they get worse. Tell your care team right away if you have any change in your eyesight or hearing.
What other information should I know?
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 sildenafil pink pill 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.
Oral Administration
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. Ask your pharmacist to recommend an appropriate measuring device. This medication may affect your coordination, reaction time, or judgment. Do not drive or operate machinery until you know how this medication affects you. Sit up or stand slowly to reduce the risk of dizzy or fainting spells. Drinking alcohol with this medication can increase the risk of these side effects. Contact your care team right away if you have an erection that lasts longer than 4 hours or if it becomes painful.