If it’s almost time for the next dose, skip the missed dose and take the next dose as scheduled. Never take extra sildenafil to compensate for a missed dose.
- 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.
Take a missed dose as soon as it’s remembered.
Detection in biological fluids
They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911. Pronunciation: sil-DEN-a-fil Generic name: sildenafil Brand names: Revatio, Viagra, Vybrique Dosage form: tablets (20 mg; 25 mg, 50 mg, 100 mg), injection (10 mg/12.5 mL), oral suspension (10 mg/mL), oral film (25 mg, 50 mg, 75 mg, 100 mg) Drug classes: Agents for pulmonary hypertension, Impotence medications Sildenafil is used to treat erectile dysfunction (ED) in adult men or pulmonary arterial hypertension (PAH) in adults and children, depending on the brand or formulation. Sildenafil tablets (25 mg, 50 mg, 100 mg; Viagra, generic) and sildenafil oral film (25 mg, 50 mg, 75 mg, 100 mg; Vybrique) are used for ED.
Does sildenafil interact with foods or drinks?
What should I do if I miss a dose of sildenafil?
This medicine is not right for everyone. Do not use it if you have had an allergic reaction to sildenafil. Tell any doctor or other healthcare provider who treats you that you are taking sildenafil.
| Product | Dosage | Quantity + Bonus | Price | |
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| Viagra Generic | 150mg | 60 + 4 Pills | 111.25€ 105.95€ | |
| Kamagra Soft Tabs | 100mg | 60 + 4 Pills | 180.59€ 171.99€ | |
| Viagra Generic | 100mg | 10 Pills | 28.91€ 27.53€ | |
| Kamagra Polo | 100mg | 60 + 4 Pills | 189.39€ 180.37€ | |
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| Viagra Generic | 150mg | 270 + 10 Pills | 326.61€ 311.06€ | |
| Kamagra Oral Jelly | 100mg | 21 Sachets | 95.92€ 91.35€ | |
| Viagra Generic | 100mg | 360 + 10 Pills | 330.21€ 314.49€ | |
| Kamagra | 100mg | 12 Pills | 55.64€ 52.99€ | |
| Kamagra | 100mg | 20 Pills | 86.09€ 81.99€ | |
| Kamagra Polo | 100mg | 32 Pills | 125.88€ 119.89€ | |
| Viagra Generic | 100mg | 120 + 6 Pills | 149.50€ 142.38€ |
The doctor may need to perform regular check-ups and tests to check the effectiveness and side effects of this treatment. Tell your doctor if you are pregnant, breastfeeding, or have: Kidney disease Liver disease Diabetes Bleeding problems Blood problems such as sickle cell anemia Bleeding problems or ulcers Obstruction of the small veins in the lungs (pulmonary veno-occlusive disease) Eye or vision problems Deformed penis shape Tell your doctor if you are pregnant, breastfeeding, or have: Blood problems such as sickle cell anemia Blood problems such as sickle cell anemia Obstruction of the small veins in the lungs (pulmonary veno-occlusive disease) Obstruction of the small veins in the lungs (pulmonary veno-occlusive disease) If sildenafil is prescribed for erectile dysfunction, the prescriber will need to know if you have: Chest pain during sex Heart disease Heart rhythm problems Low blood pressure or uncontrolled high blood pressure Any previous heart attack or stroke Any heart surgery in the last six months Pulmonary hypertension Multiple myeloma Any history of prolonged erections (longer than four hours) If sildenafil is prescribed for erectile dysfunction, the prescriber will need to know if you have: Low blood pressure or uncontrolled high blood pressure Low blood pressure or uncontrolled high blood pressure Any heart surgery in the last six months Any heart surgery in the last six months Any history of prolonged erections (longer than four hours) Any history of prolonged erections (longer than four hours) Make sure the doctor knows if you smoke or not. Make sure the doctor knows if you smoke or not.
Use in Specific Populations
If it’s almost time for the next dose, skip the missed dose and take the next dose as scheduled. Never take extra sildenafil to compensate for a missed dose. Take a missed dose as soon as it’s remembered. This medicine is not right for everyone. Do not use it if you have had an allergic reaction to sildenafil.
Phonetic Name
Tell any doctor or other healthcare provider who treats you that you are taking sildenafil. The doctor may need to perform regular check-ups and tests to check the effectiveness and side effects of this treatment. Tell your doctor if you are pregnant, breastfeeding, or have: Kidney disease Liver disease Diabetes Bleeding problems Blood problems such as sickle cell anemia Bleeding problems or ulcers Obstruction of the small veins in the lungs (pulmonary veno-occlusive disease) Eye or vision problems Deformed penis shape Tell your doctor if you are pregnant, breastfeeding, or have: Blood problems such as sickle cell anemia Blood problems such as sickle cell anemia Obstruction of the small veins in the lungs (pulmonary veno-occlusive disease) Obstruction of the small veins in the lungs (pulmonary veno-occlusive disease) If sildenafil is prescribed for erectile dysfunction, the prescriber will need to know if you have: Chest pain during sex Heart disease Heart rhythm problems Low blood pressure or uncontrolled high blood pressure Any previous heart attack or stroke Any heart surgery in the last six months Pulmonary hypertension Multiple myeloma Any history of prolonged erections (longer than four hours) If sildenafil is prescribed for erectile dysfunction, the prescriber will need to know if you have: Low blood pressure or uncontrolled high blood pressure Low blood pressure or uncontrolled high blood pressure Any heart surgery in the last six months Any heart surgery in the last six months Any history of prolonged erections (longer than four hours) Any history of prolonged erections (longer than four hours) Make sure the doctor knows if you smoke or not. Make sure the doctor knows if you smoke or not. Sildenafil can cause serious problems, particularly at high doses: Heart problems Low blood pressure Prolonged or painful erections Sudden loss of vision in one or both eyes Hearing problems including hearing loss, ringing in the ears, and dizziness Sildenafil can cause serious problems, particularly at high doses: Sudden loss of vision in one or both eyes Sudden loss of vision in one or both eyes Hearing problems including hearing loss, ringing in the ears, and dizziness Hearing problems including hearing loss, ringing in the ears, and dizziness If sildenafil is being used for ED, do not continue having sex if you experience symptoms of heart problems such as chest pain or nausea.
Drug forms and administration
If sildenafil is being used for ED, do not continue having sex if you experience symptoms of heart problems such as chest pain or nausea. Sildenafil for ED does women sildenafil not protect you or your partner from sexually transmitted diseases. Because of potentially hazardous drug interactions, sildenafil can never be safely used with: Other PDE-5 inhibitors such as vardenafil or tadalafil The pulmonary hypertension treatment Adempas (riociguat) Nitrates such as nitroglycerin Drugs that enhance sexual performance called “poppers” such as amyl nitrite Because of potentially hazardous drug interactions, sildenafil can never be safely used with: Other PDE-5 inhibitors such as vardenafil or tadalafil Other PDE-5 inhibitors such as vardenafil or tadalafil Drugs that enhance sexual performance called “poppers” such as amyl nitrite Drugs that enhance sexual performance called “poppers” such as amyl nitrite To avoid other drug interactions, make sure the prescriber knows about all prescription drugs, over-the-counter medications, and supplements you use, particularly: Alpha blockers, medicines commonly used to treat enlarged prostate or high blood pressure Other types of blood pressure drugs Other treatments or supplements for erectile dysfunction HIV/AIDS medications called protease inhibitors Azole antifungal drugs such as ketoconazole and itraconazole The antibiotics clarithromycin and erythromycin Amlodipine, bosentan, cimetidine, rifampin To avoid other drug interactions, make sure the prescriber knows about all prescription drugs, over-the-counter medications, and supplements you use, particularly: Alpha blockers, medicines commonly used to treat enlarged prostate or high blood pressure Alpha blockers, medicines commonly used to treat enlarged prostate or high blood pressure Other treatments or supplements for erectile dysfunction Other treatments or supplements for erectile dysfunction Azole antifungal drugs such as ketoconazole and itraconazole Azole antifungal drugs such as ketoconazole and itraconazole Find more detailed information about sildenafil interactions to avoid here. Contact a doctor if you notice any signs or symptoms of a possible serious side effect including: Chest pain, trouble breathing, sudden or severe headache, dizziness, arm or shoulder pain, nausea, cough Chest pain, trouble breathing, sudden or severe headache, dizziness, arm or shoulder pain, nausea, cough Painful erection or an erection that lasts longer than four hours Painful erection or an erection that lasts longer than four hours Sudden decrease in hearing, hearing loss, ringing in the ears, dizziness Sudden decrease in hearing, hearing loss, ringing in the ears, dizziness Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing Warmth or redness in your face, neck, arms, or upper chest Warmth or redness in your face, neck, arms, or upper chest Find more detailed information about Viagra side effects here. Liqrev sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Liqrev sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Revatio prescribing information, DailyMed (NIH National Library of Medicine) Revatio prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate tablet prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate tablet prescribing information, DailyMed (NIH National Library of Medicine) Viagra drug summary, Prescriber’s Digital Reference (PDR) Viagra drug summary, Prescriber’s Digital Reference (PDR) By clicking 'Subscribe', I agree to SingleCare's Terms & Conditions. Sildenafil can cause serious problems, particularly at high doses: Heart problems Low blood pressure Prolonged or painful erections Sudden loss of vision in one or both eyes Hearing problems including hearing loss, ringing in the ears, and dizziness Sildenafil can cause serious problems, particularly at high doses: Sudden loss of vision in one or both eyes Sudden loss of vision in one or both eyes Hearing problems including hearing loss, ringing in the ears, and dizziness Hearing problems including hearing loss, ringing in the ears, and dizziness If sildenafil is being used for ED, do not continue having sex if you experience symptoms of heart problems such as chest pain or nausea.
| 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 |
If sildenafil is being used for ED, do not continue having sex if you experience symptoms of heart problems such as chest pain or nausea. Sildenafil for ED does women sildenafil not protect you or your partner from sexually transmitted diseases.
- Sildenafil citrate is a medication used primarily for erectile dysfunction.
- It works by relaxing blood vessels to increase blood flow.
- Sildenafil is also prescribed for pulmonary arterial hypertension.
- Common side effects include headache, flushing, and nasal congestion.
- It should be taken 30-60 minutes before sexual activity.
- Alcohol and high-fat meals can reduce its effectiveness.
- Do not take with nitrate medications due to risk of severe hypotension.
Because of potentially hazardous drug interactions, sildenafil can never be safely used with: Other PDE-5 inhibitors such as vardenafil or tadalafil The pulmonary hypertension treatment Adempas (riociguat) Nitrates such as nitroglycerin Drugs that enhance sexual performance called “poppers” such as amyl nitrite Because of potentially hazardous drug interactions, sildenafil can never be safely used with: Other PDE-5 inhibitors such as vardenafil or tadalafil Other PDE-5 inhibitors such as vardenafil or tadalafil Drugs that enhance sexual performance called “poppers” such as amyl nitrite Drugs that enhance sexual performance called “poppers” such as amyl nitrite To avoid other drug interactions, make sure the prescriber knows about all prescription drugs, over-the-counter medications, and supplements you use, particularly: Alpha blockers, medicines commonly used to treat enlarged prostate or high blood pressure Other types of blood pressure drugs Other treatments or supplements for erectile dysfunction HIV/AIDS medications called protease inhibitors Azole antifungal drugs such as ketoconazole and itraconazole The antibiotics clarithromycin and erythromycin Amlodipine, bosentan, cimetidine, rifampin To avoid other drug interactions, make sure the prescriber knows about all prescription drugs, over-the-counter medications, and supplements you use, particularly: Alpha blockers, medicines commonly used to treat enlarged prostate or high blood pressure Alpha blockers, medicines commonly used to treat enlarged prostate or high blood pressure Other treatments or supplements for erectile dysfunction Other treatments or supplements for erectile dysfunction Azole antifungal drugs such as ketoconazole and itraconazole Azole antifungal drugs such as ketoconazole and itraconazole Find more detailed information about sildenafil interactions to avoid here. Contact a doctor if you notice any signs or symptoms of a possible serious side effect including: Chest pain, trouble breathing, sudden or severe headache, dizziness, arm or shoulder pain, nausea, cough Chest pain, trouble breathing, sudden or severe headache, dizziness, arm or shoulder pain, nausea, cough Painful erection or an erection that lasts longer than four hours Painful erection or an erection that lasts longer than four hours Sudden decrease in hearing, hearing loss, ringing in the ears, dizziness Sudden decrease in hearing, hearing loss, ringing in the ears, dizziness Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing Warmth or redness in your face, neck, arms, or upper chest Warmth or redness in your face, neck, arms, or upper chest Find more detailed information about Viagra side effects here.
| Side Effect | Severity | Common Symptoms | Frequency |
|---|---|---|---|
| Headache | Mild to Moderate | Throbbing pain, sensation of pressure | Very common |
| Flushing | Mild | Skin redness, warmth | Common |
| Dyspepsia (Indigestion) | Mild | Burning sensation in stomach | Common |
| Visual disturbances | Mild to moderate | Blue tint, blurred vision | Less common |
| Priapism | Severe | Prolonged and painful erection | Rare |
Liqrev sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Liqrev sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Revatio prescribing information, DailyMed (NIH National Library of Medicine) Revatio prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate powder for oral suspension prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate tablet prescribing information, DailyMed (NIH National Library of Medicine) Sildenafil citrate tablet prescribing information, DailyMed (NIH National Library of Medicine) Viagra drug summary, Prescriber’s Digital Reference (PDR) Viagra drug summary, Prescriber’s Digital Reference (PDR) By clicking 'Subscribe', I agree to SingleCare's Terms & Conditions. SingleCare is a prescription discount service that offers free coupons on thousands of prescription drugs.
- Sildenafil is available in most countries through prescription only.
- It is used worldwide, with varying approval statuses.
- FDA and EMA have rigorous testing standards for sildenafil.
- Using the drug responsibly can lead to successful treatment outcomes.
- Combining sildenafil with other medications requires medical supervision.
- Be aware of the potential for drug interactions with heart or blood pressure meds.
- Always consult a healthcare professional for personalized advice.
It can be used whether you have insurance, Medicare, Medicaid, or none of the above, but it cannot be combined with insurance. SingleCare provides transparent drug pricing, so you can compare discounts at pharmacies near you. Browse singlecare.com to find drug discounts, helpful information about your prescription, and resources to help you make informed health decisions. Prescription savings vary by prescription and by pharmacy, and may reach up to 80% off cash price. This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services sildenafil citrate tablets 50mg or procedures offered by the providers.
Enhancing Healthcare Team Outcomes
SingleCare is a prescription discount service that offers free coupons on thousands of prescription drugs. It can be used whether you have insurance, Medicare, Medicaid, or none of the above, but it cannot be combined with insurance. SingleCare provides transparent drug pricing, so you can compare discounts at pharmacies near you. Browse singlecare.com to find drug discounts, helpful information about your prescription, and resources to help you make informed health decisions. Prescription savings vary by prescription and by pharmacy, and may reach up to 80% off cash price.
What is sildenafil, and what is it used for?
This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services sildenafil citrate tablets 50mg or procedures offered by the providers. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account.
Are you currently using Sildenafil (Viagra, Revatio)?
The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account. The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110.
- The medication is classified as a controlled substance in some jurisdictions.
- Over-reliance on sildenafil without addressing underlying causes is discouraged.
- Psychological counseling may benefit some patients with ED.
- Detailed medical history helps determine if sildenafil is safe.
- Education on possible side effects improves patient safety.
- The drug does not cause dependency.
- Proper use ensures maximum therapeutic benefit and safety.
For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners.
| 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 |
They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911. Pronunciation: sil-DEN-a-fil Generic name: sildenafil Brand names: Revatio, Viagra, Vybrique Dosage form: tablets (20 mg; 25 mg, 50 mg, 100 mg), injection (10 mg/12.5 mL), oral suspension (10 mg/mL), oral film (25 mg, 50 mg, 75 mg, 100 mg) Drug classes: Agents for pulmonary hypertension, Impotence medications Sildenafil is used to treat erectile dysfunction (ED) in adult men or pulmonary arterial hypertension (PAH) in adults and children, depending on the brand or formulation.
What should I know about storage and disposal of this medication?
Professional resources
Treatment & Diagnosis
Sildenafil tablets (25 mg, 50 mg, 100 mg; Viagra, generic) and sildenafil oral film (25 mg, 50 mg, 75 mg, 100 mg; Vybrique) are used for ED.