12 CLINICAL PHARMACOLOGY

Patients who experience symptoms (e.g., angina pectoris, dizziness, nausea) upon initiation of sexual activity should be advised to refrain from further activity and should discuss the episode with their physician [see Warnings and Precautions (5.1)].Sudden Loss of VisionPhysicians should advise patients to stop use of all PDE5 inhibitors, including VIAGRA, and seek medical attention in the event of a sudden loss of vision in one or both eyes. Such an event may be a sign of non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including possible permanent loss of vision, that has been reported rarely post-marketing in temporal association with the use of all PDE5 inhibitors.

Physicians should discuss with patients the increased risk of NAION in individuals who have already experienced NAION in one eye. Physicians should also discuss with patients the increased risk of NAION among the general population in patients with a "crowded" optic disc, although evidence is insufficient to support screening of prospective users of PDE5 inhibitor, including VIAGRA, for this uncommon condition [see Warnings and Precautions (5.3) and Adverse Reactions (6.2)].Sudden Hearing LossPhysicians should advise patients to stop taking PDE5 inhibitors, including VIAGRA, and seek prompt medical attention in the event of sudden decrease or loss of hearing.

5.9 Counseling Patients About Sexually Transmitted Diseases

Physicians should advise patients to stop use of all PDE5 inhibitors, including VIAGRA, and seek medical attention in the event of a sudden loss of vision in one or both eyes. Physicians should also discuss with patients the increased risk of NAION among the general population in patients with a "crowded" optic disc, although evidence is insufficient to support screening of prospective users of PDE5 inhibitor, including VIAGRA, for this uncommon condition [see Warnings and Precautions (5.3) and Adverse Reactions (6.2)]. It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors [see Warnings and Precautions (5.4) and Adverse Reactions (6.2)]. Physicians should warn patients that prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of VIAGRA. If priapism is not treated immediately, penile tissue damage and permanent loss of potency sildenafil cenforce may result [see Warnings and Precautions (5.2)].

Viagra Soft Tabs

Physicians should inform patients not to take VIAGRA with other PDE5 inhibitors including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil. The safety and efficacy of VIAGRA with other PDE5 inhibitors, including REVATIO, have not been studied [see Warnings and Precautions (5.7)]. Patient Information VIAGRA® (vi-AG-rah)(sildenafil citrate)TabletsWhat is the most important information I should know about VIAGRA?VIAGRA can cause your blood pressure to drop suddenly to an unsafe level if it is taken with certain other medicines. Do not take VIAGRA if you take any other medicines called "nitrates." Nitrates are used to treat chest pain (angina). A sudden drop in blood pressure can cause you to feel dizzy, faint, or have a heart attack or stroke.Do not take VIAGRA if you take medicines called guanylate cyclase stimulators which include:Riociguat (Adempas®) a medicine that treats pulmonary arterial hypertension and chronic-thromboembolic pulmonary hypertension.Tell all your healthcare providers that you take VIAGRA.

What Are Causes of Erectile Dysfunction?

If you need emergency medical care for a heart problem, it will be important for your healthcare provider to know when you last took VIAGRA.Stop sexual activity and get medical help right away if you get symptoms such as chest pain, dizziness, or nausea during sex.Sexual activity can put an extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease. Ask your doctor if your heart is healthy enough to handle the extra strain of having sex.VIAGRA does not protect you or your partner from getting sexually transmitted diseases, including HIV—the virus that causes AIDS.What is VIAGRA?VIAGRA is a prescription medicine used to treat erectile dysfunction (ED). You will not get an erection just by taking this medicine. VIAGRA helps a man with erectile dysfunction get and keep an erection only when he is sexually excited (stimulated).VIAGRA is not for use in women or children.It is not known if VIAGRA is safe and effective in women or children under 18 years of age.Who should not take VIAGRA?Do not take VIAGRA if you:take medicines called nitrates (such as nitroglycerin)use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitratetake any medicines called guanylate cyclase stimulators such as riociguat (Adempas)are allergic to sildenafil, as contained in VIAGRA chew sildenafil and REVATIO, or any of the ingredients in VIAGRA. See the end of this leaflet for a complete list of ingredients in VIAGRA.What should I tell my healthcare provider before taking VIAGRA?Before you take VIAGRA, tell your healthcare provider if you:have or have had heart problems such as a heart attack, irregular heartbeat, angina, chest pain, narrowing of the aortic valve or heart failurehave had heart surgery within the last 6 monthshave pulmonary hypertensionhave had a strokehave low blood pressure, or high blood pressure that is not controlledhave a deformed penis shapehave had an erection that lasted for more than 4 hourshave problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemiahave retinitis pigmentosa, a rare genetic (runs in families) eye diseasehave ever had severe vision loss, including an eye problem called non-arteritic anterior ischemic optic neuropathy (NAION)have bleeding problemshave or have had stomach ulcershave liver problemshave kidney problems or are having kidney dialysishave any other medical conditionsTell your healthcare provider about all the medicines you take1, including prescription and over-the-counter medicines, vitamins, and herbal supplements.VIAGRA may affect the way other medicines work, and other medicines may affect the way VIAGRA works causing side effects. It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors [see Warnings and Precautions (5.4) and Adverse Reactions (6.2)].PriapismPhysicians should warn patients that prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of VIAGRA. If priapism is not treated immediately, penile tissue damage and permanent loss of potency may result [see Warnings and Precautions (5.2)].Avoid Use with other PDE5 InhibitorsPhysicians should inform patients not to take VIAGRA with other PDE5 inhibitors including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil.

Sildenafil is also marketed as REVATIO for the treatment of PAH. The safety and efficacy of VIAGRA with other PDE5 inhibitors, including REVATIO, have not been studied [see Warnings and Precautions (5.7)].Sexually Transmitted DiseaseThe use of VIAGRA offers no protection against sexually transmitted diseases. Counseling of patients about the protective measures necessary to guard against sexually transmitted diseases, including the Human Immunodeficiency Virus (HIV), may be considered [see Warnings and Precautions (5.9)]. Advise the patient to read the FDA-approved patient labeling (Patient Information) Physicians should discuss with patients the contraindication of VIAGRA with regular and/or intermittent use of nitric oxide donors, such as organic nitrates or organic nitrites in any form [see Contraindications (4.1)]. Physicians should discuss with patients the contraindication of VIAGRA with use of guanylate cyclase stimulators such as riociguat [see Contraindications (4.3)].

What other drugs will affect sildenafil?

Patients who experience symptoms (e.g., angina pectoris, dizziness, nausea) upon initiation of sexual activity should be advised to refrain from further activity and should discuss the episode with their physician [see Warnings and Precautions (5.1)].Sudden Loss of VisionPhysicians should advise patients to stop use of all PDE5 inhibitors, including VIAGRA, and seek medical attention in the event of a sudden loss of vision in one or both eyes. Such an event may be a sign of non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including possible permanent loss of vision, that has been reported rarely post-marketing in temporal association with the use of all PDE5 inhibitors. Physicians should discuss with patients the increased risk of NAION in individuals who have already experienced NAION in one eye. Physicians should also discuss with patients the increased risk of NAION among the general population in patients with a "crowded" optic disc, although evidence is insufficient to support screening of prospective users of PDE5 inhibitor, including VIAGRA, for this uncommon condition [see Warnings and Precautions (5.3) and Adverse Reactions (6.2)].Sudden Hearing LossPhysicians should advise patients to stop taking PDE5 inhibitors, including VIAGRA, and seek prompt medical attention in the event of sudden decrease or loss of hearing. It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors [see Warnings and Precautions (5.4) and Adverse Reactions (6.2)].PriapismPhysicians should warn patients that prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of VIAGRA.

Sildenafil (Viagra)

If priapism is not treated immediately, penile tissue damage and permanent loss of potency may result [see Warnings and Precautions (5.2)].Avoid Use with other PDE5 InhibitorsPhysicians should inform patients not to take VIAGRA with other PDE5 inhibitors including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil. Sildenafil is also marketed as REVATIO for the treatment of PAH. The safety and efficacy of VIAGRA with other PDE5 inhibitors, including REVATIO, have not been studied [see Warnings and Precautions (5.7)].Sexually Transmitted DiseaseThe use of VIAGRA offers no protection against sexually transmitted diseases. Counseling of patients about the protective measures necessary to guard against sexually transmitted diseases, including the Human Immunodeficiency Virus (HIV), may be considered [see Warnings and Precautions (5.9)]. Advise the patient to read the FDA-approved patient labeling (Patient Information) Physicians should discuss with patients the contraindication of VIAGRA with regular and/or intermittent use of nitric oxide donors, such as organic nitrates or organic nitrites in any form [see Contraindications (4.1)].

Tadalista Super Active

Physicians should discuss with patients the contraindication of VIAGRA with use of guanylate cyclase stimulators such as riociguat [see Contraindications (4.3)]. Concomitant Use with Drugs Which sildenafil 100 mg tab Lower Blood Pressure Physicians should advise patients of the potential for VIAGRA to augment the blood pressure lowering effect of alpha-blockers and anti-hypertensive medications. Therefore, when VIAGRA is co-administered with alpha-blockers, patients should be stable on alpha-blocker therapy prior to initiating VIAGRA treatment and VIAGRA should be initiated at the lowest dose [see Warnings and Precautions (5.5)]. Physicians should discuss with patients the potential cardiac risk of sexual activity in patients with preexisting cardiovascular risk factors. Patients who experience symptoms (e.g., angina pectoris, dizziness, nausea) upon initiation of sexual activity should be advised to refrain from further activity and should discuss the episode with their physician [see Warnings and Precautions (5.1)]. Concomitant Use with Drugs Which sildenafil 100 mg tab Lower Blood Pressure Physicians should advise patients of the potential for VIAGRA to augment the blood pressure lowering effect of alpha-blockers and anti-hypertensive medications. Therefore, when VIAGRA is co-administered with alpha-blockers, patients should be stable on alpha-blocker therapy prior to initiating VIAGRA treatment and VIAGRA should be initiated at the lowest dose [see Warnings and Precautions (5.5)]. Physicians should discuss with patients the potential cardiac risk of sexual activity in patients with preexisting cardiovascular risk factors. Patients who experience symptoms (e.g., angina pectoris, dizziness, nausea) upon initiation of sexual activity should be advised to refrain from further activity and should discuss the episode with their physician [see Warnings and Precautions (5.1)].

What should I try if I have erectile dysfunction?

Physicians should advise patients to stop use of all PDE5 inhibitors, including VIAGRA, and seek medical attention in the event of a sudden loss of vision in one or both eyes. Physicians should also discuss with patients the increased risk of NAION among the general population in patients with a "crowded" optic disc, although evidence is insufficient to support screening of prospective users of PDE5 inhibitor, including VIAGRA, for this uncommon condition [see Warnings and Precautions (5.3) and Adverse Reactions (6.2)]. It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors [see Warnings and Precautions (5.4) and Adverse Reactions (6.2)]. Physicians should warn patients that prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of VIAGRA. If priapism is not treated immediately, penile tissue damage and permanent loss of potency sildenafil cenforce may result [see Warnings and Precautions (5.2)]. Physicians should inform patients not to take VIAGRA with other PDE5 inhibitors including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil. The safety and efficacy of VIAGRA with other PDE5 inhibitors, including REVATIO, have not been studied [see Warnings and Precautions (5.7)].

Related/similar drugs

Patient Information VIAGRA® (vi-AG-rah)(sildenafil citrate)TabletsWhat is the most important information I should know about VIAGRA?VIAGRA can cause your blood pressure to drop suddenly to an unsafe level if it is taken with certain other medicines.

• Herbal supplements claiming to contain Sildenafil often have inconsistent quality.
• OTC Sildenafil products sometimes contain fillers or undisclosed ingredients.
• Many OTC "performance enhancers" include Sildenafil as an unapproved additive.
• Users should research the manufacturer before buying OTC Sildenafil products.
• OTC Sildenafil may be combined with other performance ingredients, increasing risk.
• Effects of OTC Sildenafil can vary based on individual health factors.
• OTC products often lack clinical trial evidence supporting efficacy.
• OTC Sildenafil is sometimes promoted through social media influencers.
• Long-term safety of OTC Sildenafil products remains largely unstudied.
• OTC Sildenafil can cause side effects, especially if user has underlying health issues.
• Check for lab testing or certification when selecting OTC Sildenafil products.

Do not take VIAGRA if you take any other medicines called "nitrates." Nitrates are used to treat chest pain (angina).

• The safety profile of OTC Sildenafil is less understood compared to prescribed drugs.
• OTC Sildenafil may not be as reliable or effective as prescription variants.
• Consumers should be cautious about OTC Sildenafil containing high doses.
• OTC Sildenafil from unverified sources can have impurities.
• The demand for OTC Sildenafil has increased online in recent years.
• Some OTC products claim to contain Sildenafil but are actually misbranded.
• OTC Sildenafil should not replace professional treatment for erectile issues.
• Illegal OTC Sildenafil products can result in legal penalties.
• It’s advisable to check reviews and lab reports before buying OTC Sildenafil.
• OTC Sildenafil use can lead to dependence if misused.
• Most health authorities recommend consulting a doctor before OTC use.

A sudden drop in blood pressure can cause you to feel dizzy, faint, or have a heart attack or stroke.Do not take VIAGRA if you take medicines called guanylate cyclase stimulators which include:Riociguat (Adempas®) a medicine that treats pulmonary arterial hypertension and chronic-thromboembolic pulmonary hypertension.Tell all your healthcare providers that you take VIAGRA. If you need emergency medical care for a heart problem, it will be important for your healthcare provider to know when you last took VIAGRA.Stop sexual activity and get medical help right away if you get symptoms such as chest pain, dizziness, or nausea during sex.Sexual activity can put an extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease. Ask your doctor if your heart is healthy enough to handle the extra strain of having sex.VIAGRA does not protect you or your partner from getting sexually transmitted diseases, including HIV—the virus that causes AIDS.What is VIAGRA?VIAGRA is a prescription medicine used to treat erectile dysfunction (ED). You will not get an erection just by taking this medicine. VIAGRA helps a man with erectile dysfunction get and keep an erection only when he is sexually excited (stimulated).VIAGRA is not for use in women or children.It is not known if VIAGRA is safe and effective in women or children under 18 years of age.Who should not take VIAGRA?Do not take VIAGRA if you:take medicines called nitrates (such as nitroglycerin)use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitratetake any medicines called guanylate cyclase stimulators such as riociguat (Adempas)are allergic to sildenafil, as contained in VIAGRA chew sildenafil and REVATIO, or any of the ingredients in VIAGRA.

See the end of this leaflet for a complete list of ingredients in VIAGRA.What should I tell my healthcare provider before taking VIAGRA?Before you take VIAGRA, tell your healthcare provider if you:have or have had heart problems such as a heart attack, irregular heartbeat, angina, chest pain, narrowing of the aortic valve or heart failurehave had heart surgery within the last 6 monthshave pulmonary hypertensionhave had a strokehave low blood pressure, or high blood pressure that is not controlledhave a deformed penis shapehave had an erection that lasted for more than 4 hourshave problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemiahave retinitis pigmentosa, a rare genetic (runs in families) eye diseasehave ever had severe vision loss, including an eye problem called non-arteritic anterior ischemic optic neuropathy (NAION)have bleeding problemshave or have had stomach ulcershave liver problemshave kidney problems or are having kidney dialysishave any other medical conditionsTell your healthcare provider about all the medicines you take1, including prescription and over-the-counter medicines, vitamins, and herbal supplements.VIAGRA may affect the way other medicines work, and other medicines may affect the way VIAGRA works causing side effects. Especially tell your healthcare provider if you take any of the following:medicines called nitrates (see "What is the most important information I should know about VIAGRA?

In some patients, the use of VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting.medicines called HIV protease inhibitors, such as ritonavir (Norvir), indinavir sulfate (Crixivan), saquinavir (Fortovase or Invirase) or atazanavir sulfate (Reyataz)some types of oral antifungal medicines, such as ketoconazole (Nizoral), and itraconazole (Sporanox)some types of antibiotics, such as clarithromycin (Biaxin), telithromycin (Ketek), or erythromycinother medicines that treat high blood pressureother medicines or treatments for EDVIAGRA contains sildenafil, which is the same medicine found in another drug called REVATIO.

Non-medical use

Especially tell your healthcare provider if you take any of the following:medicines called nitrates (see "What is the most important information I should know about VIAGRA? In some patients, the use of VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting.medicines called HIV protease inhibitors, such as ritonavir (Norvir), indinavir sulfate (Crixivan), saquinavir (Fortovase or Invirase) or atazanavir sulfate (Reyataz)some types of oral antifungal medicines, such as ketoconazole (Nizoral), and itraconazole (Sporanox)some types of antibiotics, such as clarithromycin (Biaxin), telithromycin (Ketek), or erythromycinother medicines that treat high blood pressureother medicines or treatments for EDVIAGRA contains sildenafil, which is the same medicine found in another drug called REVATIO. VIAGRA should not be used with REVATIO or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil]).Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure.Know the medicines you take. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine.How should I take VIAGRA?Take VIAGRA exactly as your healthcare provider tells you to take it.Your healthcare provider will tell you how much VIAGRA to take and when to take it.Your healthcare provider may change your dose if needed.Take VIAGRA about 1 hour before sexual activity.

Fildena Super Active

Common Side Effects

VIAGRA should not be used with REVATIO or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil]).Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure.Know the medicines you take. Keep a list of them to show to your healthcare provider and pharmacist when you get a new medicine.How should I take VIAGRA?Take VIAGRA exactly as your healthcare provider tells you to take it.Your healthcare provider will tell you how much VIAGRA to take and when to take it.Your healthcare provider may change your dose if needed.Take VIAGRA about 1 hour before sexual activity.