2 DOSAGE & ADMINISTRATION
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.
Detection in biological fluids
If sildenafil is being used for ED, do not continue having sex if you experience symptoms of heart problems such as sildenafil pink pill chest pain or nausea. Sildenafil for ED does 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 Uses
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. Do not use it if you have had an allergic reaction to sildenafil.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 50mg | 10 Pills | 26.87€ 25.59€ | |
| Viagra Generic | 50mg | 180 + 8 Pills | 158.82€ 151.26€ | |
| Viagra Generic | 150mg | 90 + 6 Pills | 147.18€ 140.17€ | |
| Kamagra Polo | 100mg | 32 Pills | 125.88€ 119.89€ | |
| Viagra Generic | 150mg | 360 + 10 Pills | 423.48€ 403.31€ | |
| Kamagra Oral Jelly | 100mg | 110 + 9 Sachets | 334.87€ 318.92€ | |
| Viagra Generic | 100mg | 180 + 8 Pills | 199.37€ 189.88€ | |
| Viagra Generic | 25mg | 180 + 6 Pills | 154.93€ 147.55€ | |
| Viagra Generic | 100mg | 10 Pills | 28.91€ 27.53€ | |
| Kamagra Oral Jelly | 100mg | 220 + 18 Sachets | 662.24€ 630.70€ |
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.
| Precaution/Contraindication | Details | Advice |
|---|---|---|
| Nitrate use | Contraindicated with sildenafil | Risk of severe hypotension |
| Cardiovascular disease risk | Use with caution | Consult cardiologist before use |
| Liver or kidney impairment | Dose adjustment needed | Monitor liver/kidney function tests |
| Allergies to sildenafil or excipients | Check ingredients before administration | Discontinue if allergic reactions occur |
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.
- Manufacturing of sildenafil syrup requires specialized equipment.
- The syrup form must undergo stability testing before release.
- Some formulations may include sweeteners to improve taste.
- Off-label compounding can carry legal and safety risks.
- Clinicians should carefully consider risks before prescribing syrup.
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. If sildenafil is being used for ED, do not continue having sex if you experience symptoms of heart problems such as sildenafil pink pill chest pain or nausea. Sildenafil for ED does not protect you or your partner from sexually transmitted diseases.
- Sildenafil syrup is sometimes used in pediatric cases, off-label.
- Off-label use in children requires careful dosage adjustment.
- Lack of standardization makes typical dosing guidelines difficult.
- Pharmacokinetics in syrup form are less well-studied.
- Always seek professional medical advice before use.
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.
| Side Effect | Frequency | Severity | Management |
|---|---|---|---|
| Headache | Common | Mild | Analgesics, hydration |
| Flushing | Common | Mild | Cool environment, monitor |
| Nasal congestion | Common | Mild | Decongestants, hydration |
| Dizziness | Less common | Moderate | Avoid sudden movements |
| Vision disturbances | Rare | Moderate | Discontinue, consult physician |
| Priapism (prolonged erection) | Rare | Severe | Emergency medical attention |
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. SingleCare is a prescription discount service that offers free coupons on thousands of prescription drugs.
Medical uses
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 canada sildenafil 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 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.
6.2 Postmarketing Experience
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, sildenafil citrate drug 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. 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 canada sildenafil depending on the type of provider and service received.
5.5 Hearing Loss
5.1 Hypotension
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 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. The charge will include an administrative fee for use of the program.
- Contraindications include hypersensitivity to sildenafil.
- Patients with heart conditions should consult a cardiologist before use.
- Sildenafil’s safety profile is well-studied in adults.
- The syrup should not be used with children without medical advice.
- Proper disposal of unused syrup is important to avoid misuse.
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, sildenafil citrate drug 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. 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.
Dosing information
Interactions that increase your risk for side effects
If you think you may have a medical emergency, immediately call your physician or dial 911. We reserve the right to revise these Terms at any time. As such, you should check these Terms periodically.
- The shelf life of sildenafil syrup depends on formulation and storage.
- Expiry dates should always be checked before use.
- Improper storage can lead to degradation of active ingredients.
- The liquid form allows for precise dose adjustments.
- Careful titration is essential to avoid overdose risks.
Changes will not apply to any orders we have already accepted unless the law requires otherwise.
| Parameter | Value | Description | Remarks |
|---|---|---|---|
| Absorption | Rapid, within 30-60 min | Time to peak plasma concentration | 最佳服用时间为餐前或空腹 |
| Bioavailability | Approx. 40% | Percentage of dose reaching systemic circulation | 影响药效强度 |
| Half-life | 4 hours | Time taken to reduce plasma concentration by half | 影响药物持续时间 |
| Metabolism | Hepatic (mainly CYP3A4) | Liver enzymes metabolize sildenafil | 酒精或药物相互作用可能影响代谢 |
If you violate any of the terms of these Terms you will have your access canceled and you may be permanently banned from accessing the Site.
12.2 Pharmacodynamics
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. We reserve the right to revise these Terms at any time. As such, you should check these Terms periodically.
Warnings for people with certain health conditions
Changes will not apply to any orders we have already accepted unless the law requires otherwise. If you violate any of the terms of these Terms you will have your access canceled and you may be permanently banned from accessing the Site. If you access the Site after we have posted changes to these Terms, such access shall constitute your acceptance of those changes, whether or not you actually reviewed them. If you access the Site after we have posted changes to these Terms, such access shall constitute your acceptance of those changes, whether or not you actually reviewed them.
What happens if I overdose?
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.
Description of Services
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.
