Permanent damage to the penis may occur if priapism is not treated quickly.
| Common Side Effect | Frequency | Severity | Notes |
|---|---|---|---|
| Headache | Very common | Mild to moderate | Usually transient |
| Flushing | Common | Mild | Often resolves quickly |
| Dyspepsia / Indigestion | Common | Mild | Can be managed with antacids |
| Visual Disturbances | Less common | Mild | Changes in color perception |
| Priapism | Rare | Serious | Medical emergency, requires immediate attention |
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.
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. 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. 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. 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. You may be at a higher risk if you have certain health conditions or take blood pressure medicines.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 150mg | 270 + 10 Pills | 326.61€ 311.06€ | |
| Viagra Generic | 150mg | 120 + 8 Pills | 177.58€ 169.12€ | |
| Viagra Generic | 200mg | 90 + 6 Pills | 170.79€ 162.66€ | |
| Kamagra Oral Jelly | 100mg | 10 Sachets | 54.55€ 51.95€ | |
| Viagra Generic | 25mg | 30 + 4 Pills | 47.97€ 45.69€ | |
| Viagra Generic | 50mg | 120 + 6 Pills | 129.64€ 123.47€ | |
| Viagra Generic | 150mg | 180 + 10 Pills | 236.46€ 225.20€ | |
| Kamagra Polo | 100mg | 84 + 4 Pills | 244.49€ 232.85€ | |
| Viagra Generic | 100mg | 10 Pills | 28.91€ 27.53€ | |
| Viagra Generic | 25mg | 360 + 10 Pills | 213.68€ 203.50€ | |
| Viagra Generic | 200mg | 20 Pills | 61.69€ 58.75€ | |
| Kamagra Soft Tabs | 100mg | 20 Pills | 79.79€ 75.99€ | |
| Kamagra Polo | 100mg | 60 + 4 Pills | 189.39€ 180.37€ | |
| Viagra Generic | 100mg | 180 + 8 Pills | 199.37€ 189.88€ |
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. 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 sildenafil citrate drug using certain other medicines.
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. 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. 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. You will not store it at home. The most common sildenafil 20 mg tablets side effects of sildenafil are listed below. 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.
Viagra may not be right for you if you have certain medical conditions or other factors affecting your health. Be sure to talk with your doctor if any of the following apply to you: previous allergic reaction to Viagra, sildenafil, or a similar drug current or previous stroke or heart problems, including chest pain, heart attack, heart failure, and aortic stenosis physical changes or anomalies affecting your penis, such as bending, scarring, and Peyronie’s disease blood cell problems, such as sickle cell anemia, multiple myeloma, and leukemia Note: For more information about the potential negative effects of Viagra, see the “Viagra side effects” section. As with all medications, the cost of Viagra can vary. The actual price you’ll pay depends on your insurance plan, your location, and the pharmacy you use. To learn more about the cost of Viagra, refer to this article.
Financial and insurance assistance: If you need financial support to pay for Viagra, or if you need help understanding your insurance coverage, help is available. A savings card is available for Viagra. For more information and to find out if you’re eligible for support, visit the program website. Generic version: Viagra is available as generic sildenafil. The generic is considered to be as safe and effective as the original drug.
And generics tend to cost less than brand-name drugs. To find out how the cost of sildenafil compares to the cost of Viagra, talk with your doctor or pharmacist. Optum Perks is owned by RVO Health. By clicking on this link, we may receive a commission. Viagra isn’t approved for use in females. 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. 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.
And it hasn’t been studied in pregnant people. It’s unknown whether this drug is safe to take during pregnancy. In animal studies, Viagra didn’t cause fetal harm when given to pregnant animals. But animal studies don’t always predict what will happen in humans. If you have questions about the safety of Viagra use during pregnancy, talk with your doctor.
It’s not known if Viagra is safe to take during pregnancy. (But keep in mind that the drug isn’t approved for use in females.) If you’re sexually active and you or your partner can become pregnant, talk with your doctor about whether you’ll need to use birth control while you’re taking Viagra. And it hasn’t been studied in people who are breastfeeding. Viagra may pass into breast milk, but it’s not known if this could affect a breastfed child. If sildenafil from canada you have questions about the safety of using Viagra while breastfeeding, talk with your doctor.
Disclaimer: Medical News Today 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 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. Medicines in this group include avanafil (Stendra), sildenafil (Viagra, Revatio, and others), tadalafil (Cialis and others), and vardenafil (Levitra, Staxyn).
| Form | Dose Range per Tablet | Typical Strengths | Administration Route | Manufacturer Examples |
|---|---|---|---|---|
| Oral Tablets | 25 mg - 100 mg | 25 mg, 50 mg, 100 mg | Oral (once or as needed) | Pfizer, Teva, Cipla |
| Chewable Tablets | 50 mg | 50 mg | Oral (chewed) | Generic brands |
| Sublingual Tablets | 50 mg | 50 mg | Sublingual | Experimental formulations |
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. 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.
| Indication | Description | Approved Dose | Additional Notes |
|---|---|---|---|
| Erectile Dysfunction (ED) | Improves erectile response in men | 50 mg as needed | Taken 30 min to 1 hour before activity |
| Pulmonary Arterial Hypertension | Vasodilation of pulmonary vasculature | 20 mg TID | Used with other PAH therapies |
| Raynaud's Phenomenon | Relief from vasospasms | Off-label | Experimental use |
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.