What Is Over-The-Counter Viagra?

This means that the generic form of Viagra ® will have the same therapeutic effect, but at a lower cost Yes, generic forms of Viagra® are just as safe as Viagra®. Both Viagra® and generic for Viagra® were approved by the Food and Drug Administration (FDA) to treat ED and millions of men have used Viagra® or the generic for Viagra® to treat their erectile dysfunction. Generic medications do not compromise the safety of a medication. The cost is lower than brand name medication for many reasons, most notably because the brand name medication is no longer legally protected against competition from other manufacturers. Generic for Viagra® may not be safe for men with some pre-existing conditions or who are taking medications that may interact with the drug. If you have (or have ever had) heart problems (such as a heart attack), heart disease, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, heart failure, heart surgery, pulmonary hypertension including pulmonary arterial hypertension, stroke, low blood pressure, high blood pressure, a deformed penis shape (Peyronie’s Disease), priapism (an erection that lasts for more than 4 hours), sickle cell anemia, multiple myeloma, leukemia, retinitis pigmentosa (a rare genetic eye disease), severe vision loss (such as NAION), bleeding problems, stomach ulcers, liver problems or kidney problems (such as kidney dialysis), you may be at higher risk for adverse effects.

7.4 Ritonavir and other CYP3A4 inhibitors

If you have any of these health conditions, or any other health condition, tell your healthcare provider.

Brand Name	Manufacturer	Dosage Form	Strength	Country Available
Sildenafil Ease	PharmaInnovate	Tablets	50 mg	USA
QuickFlex	HealthPlus	Lozenges	25 mg	UK
PowerUp	MedicoSupply	Capsules	100 mg	Canada
LibidoBoost	OTC Pharma	Sublingual	50 mg	Australia

Your provider should be aware of all medical conditions, prescription drugs and over-the-counter meds that you are taking. Multiple companies make generic for Viagra®, including Teva Pharmaceuticals and Greenstone, a subsidiary of Pfizer Inc. Take sildenafil (generic for Viagra®) about one hour before sexual activity, as it takes about 30 minutes to an hour to begin working. Check out our guide on how to take Viagra® for best results. If you are currently taking any over-the-counter, recreational or prescription drugs or supplements, tell your healthcare provider. Some medications, like nitroglycerin (nitrates), isosorbide dinitrate, riociguat, ritonavir, itraconazole, ketoconazole, alpha blockers and “poppers”, have well-documented drug interactions with sildenafil and could cause serious side effects.

• Many OTC "herbal" formulas claim to enhance sexual performance containing Sildenafil.
• OTC Sildenafil products are sometimes sold as libido boosters for men.
• Buyers should verify the legitimacy of OTC products claiming to contain Sildenafil.
• OTC Sildenafil may be found in health stores or online pharmacies.
• It's important to check for FDA or equivalent approval before purchasing OTC Sildenafil.
• OTC Sildenafil often lacks clear dosage information on packaging.
• The risk of drug interactions increases with OTC Sildenafil from unknown sources.
• Some OTC formulations contain undeclared Sildenafil, posing health risks.
• OTC Sildenafil use without medical supervision can lead to adverse events.
• Psychoactive effects may occur if OTC Sildenafil is combined with other drugs.
• OTC Sildenafil can cause priapism if used improperly and in high doses.

If you are currently taking a PDE5 inhibitor, like Revatio for pulmonary arterial hypertension, talk to your doctor about adjusting your dosage. There are also some rare, serious side effects of sildenafil, namely an allergic reaction, loss of vision/hearing, or priapism, an erection lasting for more than four hours. Seek emergency medical attention if you experience any of these serious side effects. Learn more about the common warnings and precautions to consider before taking generic Viagra®.

Product	Dosage	Quantity + Bonus	Price
Kamagra Oral Jelly	100mg	10 Sachets	54.55€ 51.95€	Buy
Viagra Generic	200mg	180 + 10 Pills	277.56€ 264.34€	Buy
Viagra Generic	200mg	270 + 10 Pills	379.76€ 361.68€	Buy
Viagra Generic	150mg	90 + 6 Pills	147.18€ 140.17€	Buy
Viagra Generic	50mg	360 + 10 Pills	225.33€ 214.60€	Buy
Kamagra Soft Tabs	100mg	120 + 6 Pills	311.78€ 296.93€	Buy
Viagra Generic	50mg	10 Pills	26.87€ 25.59€	Buy
Kamagra Soft Tabs	100mg	84 + 4 Pills	233.05€ 221.95€	Buy
Kamagra Polo	100mg	60 + 4 Pills	189.39€ 180.37€	Buy
Viagra Generic	25mg	120 + 6 Pills	125.56€ 119.58€	Buy
Viagra Generic	150mg	30 + 2 Pills	72.32€ 68.88€	Buy
Kamagra Polo	100mg	84 + 4 Pills	244.49€ 232.85€	Buy
Viagra Generic	100mg	120 + 6 Pills	149.50€ 142.38€	Buy

You can get the generic for Viagra® through an online or local pharmacy with a prescription from a licensed medical provider. Generic for Viagra® is not available over-the-counter. To get genuine generic for Viagra®, ensure that you are seeing a healthcare provider licensed in your state and have your prescription filled by a qualified pharmacy, one that is licensed in your state and has 3rd-party accreditations like LegitScript. Contains inactivated NDC Code(s)NDC Code(s): 50090-0619-8 If you are a consumer or patient please visit this version.

8.7 Hepatic Impairment

Seek emergency medical attention if you experience any of these serious side effects. Learn more about the common warnings and precautions to consider before taking generic Viagra®. You can get the generic for Viagra® through an online or local pharmacy with a prescription from a licensed medical provider. Generic for Viagra® is not available over-the-counter. To get genuine generic for Viagra®, ensure that you are seeing a healthcare provider licensed in your state and have your prescription filled by a qualified pharmacy, one that is licensed in your state and has 3rd-party accreditations like LegitScript.

Warnings for other groups

Contains inactivated NDC Code(s)NDC Code(s): 50090-0619-8 If you are a consumer or patient please visit this version. HIGHLIGHTS OF PRESCRIBING INFORMATION These highlights do not include all the information sildenafil 200 mg needed to use VIAGRA safely and effectively. See full prescribing information for VIAGRA.VIAGRA® (sildenafil citrate) tablets, for oral useInitial U.S. Approval: 1998RECENT MAJOR CHANGESINDICATIONS AND USAGEVIAGRA is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1)DOSAGE AND ADMINISTRATIONFor most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, VIAGRA may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1)Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1)Maximum recommended dosing frequency is once per day (2.1)DOSAGE FORMS AND STRENGTHSTablets: 25 mg, 50 mg, 100 mg (3)CONTRAINDICATIONSAdministration of VIAGRA to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form.

Vardenafil (Levitra)

VIAGRA was shown to potentiate the hypotensive effect of nitrates (4.1, 7.1, 12.2)Known hypersensitivity to sildenafil or any component of tablet (4.2)Administration with guanylate cyclase (GC) stimulators, such as riociguat (4.3)WARNINGS AND PRECAUTIONSPatients should not use VIAGRA if sexual activity is inadvisable due to cardiovascular status (5.1)Patients should seek emergency treatment if an erection lasts >4 hours. Use VIAGRA with caution in patients predisposed to priapism (5.2)Patients should stop VIAGRA and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION). VIAGRA should be used with caution, and only when the anticipated benefits outweigh the risks, in patients with a history of NAION. Patients with a "crowded" optic disc may also be at an increased risk of NAION. (5.3)Patients should stop VIAGRA and seek prompt medical attention in the event of sudden decrease or loss of hearing (5.4)Caution is advised when VIAGRA is co-administered with alpha-blockers or anti-hypertensives. HIGHLIGHTS OF PRESCRIBING INFORMATION These highlights do not include all the information sildenafil 200 mg needed to use VIAGRA safely and effectively. See full prescribing information for VIAGRA.VIAGRA® (sildenafil citrate) tablets, for oral useInitial U.S. Approval: 1998RECENT MAJOR CHANGESINDICATIONS AND USAGEVIAGRA is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1)DOSAGE AND ADMINISTRATIONFor most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.

Promise of ‘good effects’ without side effects

Concomitant use may lead to hypotension (5.5)Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures. In patients taking strong CYP inhibitors, such as ritonavir, sildenafil exposure is increased. Decrease in VIAGRA dosage is recommended (2.4, 5.6)ADVERSE REACTIONSMost common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness and rash (6.1)To report SUSPECTED ADVERSE REACTIONS, contact Pfizer at 1-800-438-1985 or FDA at 1-800-FDA-1088 or INTERACTIONSVIAGRA can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives (4.1, 5.5, 7.1, 7.2, 7.3, 12.2)With concomitant use of alpha blockers, initiate VIAGRA at 25 mg dose (2.3)CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase VIAGRA exposure (2.4, 7.4, 12.3)USE IN SPECIFIC POPULATIONSSee 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.Revised: 1/2020 VIAGRA is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1) For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, VIAGRA may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1) Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1) Maximum recommended dosing frequency is once per day (2.1) Tablets: 25 mg, 50 mg, 100 mg (3) Administration of VIAGRA to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form. VIAGRA was shown to potentiate the hypotensive effect of nitrates (4.1, 7.1, 12.2) Known hypersensitivity to sildenafil or any component of tablet (4.2) Administration with guanylate cyclase (GC) stimulators, such as riociguat (4.3) Patients should not use VIAGRA if sexual activity is inadvisable due to cardiovascular status (5.1) Patients should seek emergency treatment if an erection lasts >4 hours.

Revatio Injection

Use VIAGRA with caution in patients predisposed to priapism (5.2) Patients should stop VIAGRA and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION). Patients should stop VIAGRA and seek prompt medical attention in the event of sudden decrease or loss of hearing (5.4) Caution is advised when VIAGRA is co-administered with alpha-blockers or anti-hypertensives. Concomitant use may lead to hypotension (5.5) Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures. Decrease in VIAGRA dosage is recommended (2.4, 5.6) Most common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness and rash (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer at 1-800-438-1985 or FDA at 1-800-FDA-1088 or VIAGRA can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives (4.1, 5.5, 7.1, 7.2, 7.3, 12.2) With concomitant use of alpha blockers, initiate VIAGRA at 25 mg dose (2.3) CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase VIAGRA exposure (2.4, 7.4, 12.3) See 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling. Table of Contents FULL PRESCRIBING INFORMATION: CONTENTS*1 INDICATIONS AND USAGE2 DOSAGE AND ADMINISTRATION2.1 Dosage Information2.2 Use with Food2.3 Dosage Adjustments in Specific Situations2.4 Dosage Adjustments Due to Drug Interactions2.5 Dosage Adjustments in Special Populations3 DOSAGE FORMS AND STRENGTHS4 CONTRAINDICATIONS4.1 Nitrates4.2 Hypersensitivity Reactions4.3 Concomitant Guanylate Cyclase (GC) Stimulators5 WARNINGS AND PRECAUTIONS5.1 Cardiovascular5.2 Prolonged Erection and Priapism5.3 Effects on the Eye5.4 Hearing Loss5.5 Hypotension when Co-administered with Alpha-blockers or Anti-hypertensives5.6 Adverse Reactions with the Concomitant Use of Ritonavir5.7 Combination with other PDE5 Inhibitors or Other Erectile Dysfunction Therapies5.8 Effects on Bleeding5.9 Counseling Patients About Sexually Transmitted Diseases6 ADVERSE REACTIONS6.1 Clinical Trials Experience6.2 Postmarketing Experience7 DRUG INTERACTIONS7.1 Nitrates7.2 Alpha-blockers7.3 Amlodipine7.4 Ritonavir and other CYP3A4 inhibitors7.5 Alcohol8 USE IN SPECIFIC POPULATIONS8.1 Pregnancy8.2 Lactation8.4 Pediatric Use8.5 Geriatric Use8.6 Renal Impairment8.7 Hepatic Impairment10 OVERDOSAGE11 DESCRIPTION12 CLINICAL PHARMACOLOGY12.1 Mechanism of Action12.2 Pharmacodynamics12.3 Pharmacokinetics13 NONCLINICAL TOXICOLOGY13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility14 CLINICAL STUDIES16 HOW SUPPLIED/STORAGE AND HANDLING17 PATIENT COUNSELING INFORMATION*Sections or subsections omitted from the full prescribing information are not listed.

Cialis Super Active

However, VIAGRA may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1)Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1)Maximum recommended dosing frequency is once per day (2.1)DOSAGE FORMS AND STRENGTHSTablets: 25 mg, 50 mg, 100 mg (3)CONTRAINDICATIONSAdministration of VIAGRA to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form. VIAGRA was shown to potentiate the hypotensive effect of nitrates (4.1, 7.1, 12.2)Known hypersensitivity to sildenafil or any component of tablet (4.2)Administration with guanylate cyclase (GC) stimulators, such as riociguat (4.3)WARNINGS AND PRECAUTIONSPatients should not use VIAGRA if sexual activity is inadvisable due to cardiovascular status (5.1)Patients should seek emergency treatment if an erection lasts >4 hours. Use VIAGRA with caution in patients predisposed to priapism (5.2)Patients should stop VIAGRA and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION).

• Often, OTC Sildenafil is marketed with false claims of "all natural" ingredients.
• OTC drugs containing Sildenafil are sometimes used as party drugs for ED enhancement.
• Many countries have strict regulations banning OTC Sildenafil sales.
• OTC Sildenafil can trigger dangerous hypotension in some users.
• Users should avoid OTC Sildenafil if they are taking medications affecting blood flow.
• OTC Sildenafil’s unregulated status increases the risk of adverse effects.
• Proper dosage information is essential but often missing on OTC products.
• OTC Sildenafil should be purchased from reputable sources to ensure safety.
• Doctors warn against using OTC Sildenafil without proper diagnosis.
• Long-term health effects of OTC Sildenafil are still under study.
• OTC Sildenafil misuse can lead to serious health emergencies.

VIAGRA should be used with caution, and only when the anticipated benefits outweigh the risks, in patients with a history of NAION. Patients with a "crowded" optic disc may also be at an increased risk of NAION. (5.3)Patients should stop VIAGRA and seek prompt medical attention in the event of sudden decrease or loss of hearing (5.4)Caution is advised when VIAGRA is co-administered with alpha-blockers or anti-hypertensives. Concomitant use may lead to hypotension (5.5)Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures.

• OTC Sildenafil is frequently involved in drug misuse and abuse cases.
• Many OTC Sildenafil supplements are labeled as dietary aids or supplements.
• Consumers should educate themselves about potential risks before using OTC Sildenafil.
• OTC Sildenafil products are sometimes flavored or disguised to appeal to consumers.
• Purchasing OTC Sildenafil online can expose users to scams and frauds.
• The legality of OTC Sildenafil depends on local drug laws and regulations.
• OTC Sildenafil can cause allergic reactions in sensitive individuals.
• OTC Sildenafil may interact negatively with herbal medicines.
• The increase in OTC Sildenafil options raises concern about safety standards.
• The best safeguard is to consult healthcare providers before OTC use.
• OTC Sildenafil should not be used if experiencing chest pain or other health issues.

In patients taking strong CYP inhibitors, such as ritonavir, sildenafil exposure is increased. Decrease in VIAGRA dosage is recommended (2.4, 5.6)ADVERSE REACTIONSMost common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness and rash (6.1)To report SUSPECTED ADVERSE REACTIONS, contact Pfizer at 1-800-438-1985 or FDA at 1-800-FDA-1088 or INTERACTIONSVIAGRA can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives (4.1, 5.5, 7.1, 7.2, 7.3, 12.2)With concomitant use of alpha blockers, initiate VIAGRA at 25 mg dose (2.3)CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase VIAGRA exposure (2.4, 7.4, 12.3)USE IN SPECIFIC POPULATIONSSee 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.Revised: 1/2020 VIAGRA is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1) For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, VIAGRA may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1) Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1) Maximum recommended dosing frequency is once per day (2.1) Tablets: 25 mg, 50 mg, 100 mg (3) Administration of VIAGRA to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form. VIAGRA was shown to potentiate the hypotensive effect of nitrates (4.1, 7.1, 12.2) Known hypersensitivity to sildenafil or any component of tablet (4.2) Administration with guanylate cyclase (GC) stimulators, such as riociguat (4.3) Patients should not use VIAGRA if sexual activity is inadvisable due to cardiovascular status (5.1) Patients should seek emergency treatment if an erection lasts >4 hours. Use VIAGRA with caution in patients predisposed to priapism (5.2) Patients should stop VIAGRA and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of non arteritic anterior ischemic optic neuropathy (NAION). Patients should stop VIAGRA and seek prompt medical attention in the event of sudden decrease or loss of hearing (5.4) Caution is advised when VIAGRA is co-administered with alpha-blockers or anti-hypertensives.

• OTC Sildenafil products may contain counterfeit or substandard ingredients.
• Many OTC Sildenafil products are marketed as quick fixes for erectile issues.
• The availability of OTC Sildenafil has increased with online shopping.
• OTC Sildenafil use outside medical supervision can be dangerous.
• Some OTC formulations include herbal or natural ingredients with Sildenafil.
• The safety of OTC Sildenafil depends heavily on manufacturing practices.
• Potential side effects include headaches, dizziness, and blood pressure changes.
• OTC Sildenafil should be avoided by those with certain health conditions.
• Always read labels carefully before purchasing OTC Sildenafil.
• OTC Sildenafil can interact with medications like nitrates, causing hypotension.
• Seek medical advice before starting OTC Sildenafil treatments.

Concomitant use may lead to hypotension (5.5) Decreased blood pressure, syncope, and prolonged erection may occur at higher sildenafil exposures.

Advancing Effective Research Policy

This means that the generic form of Viagra ® will have the same therapeutic effect, but at a lower cost Yes, generic forms of Viagra® are just as safe as Viagra®. Both Viagra® and generic for Viagra® were approved by the Food and Drug Administration (FDA) to treat ED and millions of men have used Viagra® or the generic for Viagra® to treat their erectile dysfunction. Generic medications do not compromise the safety of a medication. The cost is lower than brand name medication for many reasons, most notably because the brand name medication is no longer legally protected against competition from other manufacturers. Generic for Viagra® may not be safe for men with some pre-existing conditions or who are taking medications that may interact with the drug.

Phentolamine (Regitine)

If you have (or have ever had) heart problems (such as a heart attack), heart disease, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, heart failure, heart surgery, pulmonary hypertension including pulmonary arterial hypertension, stroke, low blood pressure, high blood pressure, a deformed penis shape (Peyronie’s Disease), priapism (an erection that lasts for more than 4 hours), sickle cell anemia, multiple myeloma, leukemia, retinitis pigmentosa (a rare genetic eye disease), severe vision loss (such as NAION), bleeding problems, stomach ulcers, liver problems or kidney problems (such as kidney dialysis), you may be at higher risk for adverse effects. If you have any of these health conditions, or any other health condition, tell your healthcare provider. Your provider should be aware of all medical conditions, prescription drugs and over-the-counter meds that you are taking. Multiple companies make generic for Viagra®, including Teva Pharmaceuticals and Greenstone, a subsidiary of Pfizer Inc. Take sildenafil (generic for Viagra®) about one hour before sexual activity, as it takes about 30 minutes to an hour to begin working.

Viagra Generic

Check out our guide on how to take Viagra® for best results. If you are currently taking any over-the-counter, recreational or prescription drugs or supplements, tell your healthcare provider. Some medications, like nitroglycerin (nitrates), isosorbide dinitrate, riociguat, ritonavir, itraconazole, ketoconazole, alpha blockers and “poppers”, have well-documented drug interactions with sildenafil and could cause serious side effects. If you are currently taking a PDE5 inhibitor, like Revatio for pulmonary arterial hypertension, talk to your doctor about adjusting your dosage. There are also some rare, serious side effects of sildenafil, namely an allergic reaction, loss of vision/hearing, or priapism, an erection lasting for more than four hours. Decrease in VIAGRA dosage is recommended (2.4, 5.6) Most common adverse reactions (≥ 2%) include headache, flushing, dyspepsia, abnormal vision, nasal congestion, back pain, myalgia, nausea, dizziness and rash (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer at 1-800-438-1985 or FDA at 1-800-FDA-1088 or VIAGRA can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives (4.1, 5.5, 7.1, 7.2, 7.3, 12.2) With concomitant use of alpha blockers, initiate VIAGRA at 25 mg dose (2.3) CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase VIAGRA exposure (2.4, 7.4, 12.3) See 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.

Mechanism of action

Table of Contents FULL PRESCRIBING INFORMATION: CONTENTS*1 INDICATIONS AND USAGE2 DOSAGE AND ADMINISTRATION2.1 Dosage Information2.2 Use with Food2.3 Dosage Adjustments in Specific Situations2.4 Dosage Adjustments Due to Drug Interactions2.5 Dosage Adjustments in Special Populations3 DOSAGE FORMS AND STRENGTHS4 CONTRAINDICATIONS4.1 Nitrates4.2 Hypersensitivity Reactions4.3 Concomitant Guanylate Cyclase (GC) Stimulators5 WARNINGS AND PRECAUTIONS5.1 Cardiovascular5.2 Prolonged Erection and Priapism5.3 Effects on the Eye5.4 Hearing Loss5.5 Hypotension when Co-administered with Alpha-blockers or Anti-hypertensives5.6 Adverse Reactions with the Concomitant Use of Ritonavir5.7 Combination with other PDE5 Inhibitors or Other Erectile Dysfunction Therapies5.8 Effects on Bleeding5.9 Counseling Patients About Sexually Transmitted Diseases6 ADVERSE REACTIONS6.1 Clinical Trials Experience6.2 Postmarketing Experience7 DRUG INTERACTIONS7.1 Nitrates7.2 Alpha-blockers7.3 Amlodipine7.4 Ritonavir and other CYP3A4 inhibitors7.5 Alcohol8 USE IN SPECIFIC POPULATIONS8.1 Pregnancy8.2 Lactation8.4 Pediatric Use8.5 Geriatric Use8.6 Renal Impairment8.7 Hepatic Impairment10 OVERDOSAGE11 DESCRIPTION12 CLINICAL PHARMACOLOGY12.1 Mechanism of Action12.2 Pharmacodynamics12.3 Pharmacokinetics13 NONCLINICAL TOXICOLOGY13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility14 CLINICAL STUDIES16 HOW SUPPLIED/STORAGE AND HANDLING17 PATIENT COUNSELING INFORMATION*Sections or subsections omitted from the full prescribing information are not listed.