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Sildenafil

Generic

ID: 31722077690

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FORM

Tablet

STRENGTH

20 mg

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TL;DR — Quick Summary

Key facts from the full medication guide below

RECENT MAJOR CHANGES SECTION 1 INDICATIONS AND USAGE 2 DOSAGE AND ADMINISTRATION 2.1 Recommended Dosage in Adults 3 DOSAGE FORMS AND STRENGTHS

🩺What it's for

Adults Sildenafil tablets are indicated for the treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group I) in adults to improve exercise ability and delay clinical worsening [see Clinical Studies ( 14)] . Pediatric use information is approved for Viatris Specialty LLC s, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC s marketing exclusivity rights, this drug product is not labeled with that information.

💊How to take it

Adults: 20 mg three times a day. ( 2.1)

ℹ️Common side effects

The following serious adverse events are discussed elsewhere in the labeling: Hypotension [see Warnings and Precautions ( 5.1)] Vision Loss [see Warnings and Precautions ( 5.4)] Hearing Loss [see Warnings and Precautions ( 5.5)] Priapism [see Warnings and Precautions ( 5.7)] Vaso-occlusive Crisis in Patients with Pulmonary Hypertension Secondary to Sickle Cell Disease [see Warnings and Precautions ( 5.8)] Adults: Headache, dyspepsia, flushing, pain in limb, myalgia, back pain and diarrhea.

⚠️Serious risks

Vasodilation effects may be more common in patients with hypotension or on antihypertensive therapy. ( 5.1) Use in pulmonary veno-occlusive disease (PVOD) may cause pulmonary edema and is not recommended. ( 5.2) Hearing or visual impairment: Seek medical attention if sudden decrease or loss of vision or hearing occurs. ( 5.4, 5.5) Pulmonary hypertension (PH) secondary to sickle cell disease: Sildenafil may cause serious vaso-occlusive crises.

📋Interactions & cautions

Nitrates Concomitant use of sildenafil with nitrates in any form is contraindicated [see Contraindications ( 4)]. Strong CYP3A Inhibitors Concomitant use of sildenafil with strong CYP3A inhibitors is not recommended [see Clinical Pharmacology ( 12.3)]. Moderate-to-Strong CYP3A Inducers Concomitant use of sildenafil with moderate-to-strong CYP3A inducers (such as bosentan) decreases the sildenafil exposure.

📦Storage & missed dose

Sildenafil tablets are supplied as white to off white colored, round shaped, biconvex, film coated tablets debossed with 'J' on one side and '95' on the other side.

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Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. In a 12-week, placebo-controlled clinical study and an open-label extension study (SUPER-1) in 277 sildenafil -treated adults with PAH (WHO Group I) [see Clinical Studies ( 14)] the adverse reactions that were reported by at least 10% of sildenafil -treated patients in any dosing group, and were more frequent in sildenafil-treated patients than in placebo-treated patients are shown in Table 1. Adverse reactions were generally transient and mild to moderate in nature. The overall frequency of discontinuation in sildenafil-treated patients was 3% (20 mg and 40 mg three times a day) and 8% (80 mg three times a day). The overall frequency of discontinuation for placebo was 3%. Table 1. Most Common Adverse Reactions in Patients Treated with Sildenafil 20 mg, 40 mg, 80 mg and Placebo three times per day in SUPER-1 (More Frequent in Sildenafil -Treated Patients than Placebo-Treated Patients) Sildenafil 20 mg (n = 69) Sildenafil 40 mg (n = 67) Sildenafil 80 mg (n = 71) Placebo (n = 70) Headache 46% 42% 49% 39% Flushing 10% 9% 16% 4% Pain in Limb 7% 15% 9% 6% Myalgia 7% 6% 14% 4% Back Pain 13% 13% 9% 11% Dyspepsia 13% 8% 13% 7% Diarrhea 9% 12% 10% 6% In a placebo-controlled fixed dose titration study (PACES-1) of sildenafil (starting with recommended dose of 20 mg and increased to 40 mg and then 80 mg all three times a day) as an adjunct to intravenous epoprostenol in patients with PAH, no new safety issues were identified except for edema, which occurred in 25% of subjects in the combined sildenafil+ epoprostenol group compared with 13% of subjects in the epoprostenol group [see Clinical Studies ( 14)]. Pediatric use information is approved for Viatris Specialty LLC s, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC s marketing exclusivity rights, this drug product is not labeled with that information.

Effects of Sildenafil on Hemodynamic Measures Adults Patients on all sildenafil doses achieved a statistically significant reduction in mean pulmonary arterial pressure (mPAP) compared to those on placebo in a study with no background vasodilators [see SUPER-1 in Clinical Studies ( 14)] . Data on other hemodynamic measures for the sildenafil 20 mg three times a day and placebo dosing regimens is displayed in Table 2. The relationship between these effects and improvements in 6-minute walk distance is unknown. Table 2. Changes from Baseline in Hemodynamic Parameters at Week 12 [mean (95% CI)] for the Sildenafil 20 mg Three Times a Day and Placebo Group Placebo (n = 65)* Sildenafil 20 mg (n = 65)* mPAP (mmHg) 0.6 (-0.8, 2) -2.1(-4.3, 0.0) PVR (dyn.s/cm 5) 49 (-54, 153) -122(-217, -27) SVR (dyn.s/cm 5) -78(-197, 41) -167(-307, -26) RAP (mmHg) 0.3 (-0.9, 1.5) -0.8(-1.9, 0.3) CO (L/min) -0.1(-0.4, 0.2) 0.4 (0.1, 0.7) HR (beats/min) -1.3(-4.1, 1.4) -3.7(-5.9, -1.4) mPAP = mean pulmonary arterial pressure; PVR = pulmonary vascular resistance; SVR = systemic vascular resistance; RAP = right atrial pressure; CO = cardiac output; HR = heart rate. * The number of patients per treatment group varied slightly for each parameter due to missing assessments. Effects of Sildenafil on Blood Pressure Single oral doses of sildenafil 100 mg administered to healthy volunteers produced decreases in supine blood pressure (mean maximum decrease in systolic/diastolic blood pressure of 8/5 mmHg). The decrease in blood pressure was most notable approximately 1-2 hours after dosing and was not different from placebo at 8 hours. Similar effects on blood pressure were noted with 25 mg, 50 mg, and 100 mg doses of sildenafil, therefore the effects are not related to dose or plasma levels within this dosage range. Larger effects were recorded among patients receiving concomitant nitrates [see Contraindications ( 4)] . Single oral doses of sildenafil up to 100 mg in healthy volunteers produced no clinically relevant effects on electrocardiogram (ECG). After chronic dosing of 80 mg three times a day to patients with PAH, no clinically relevant effects on ECG were reported. After chronic dosing of 80 mg three times a day sildenafil to healthy volunteers, the largest mean change from baseline in supine systolic and supine diastolic blood pressures was a decrease of 9 mmHg and 8.4 mmHg, respectively. After chronic dosing of 80 mg three times a day sildenafil to patients with systemic hypertension, the mean change from baseline in systolic and diastolic blood pressures was a decrease of 9.4 and 9.1 mmHg, respectively. After chronic dosing of 80 mg three times a day sildenafil to patients with PAH, lesser reductions than above in systolic and diastolic blood pressures were observed (a decrease in both of 2 mmHg). Effects of Sildenafil on Vision At single oral doses of 100 mg and 200 mg, transient dose-related impairment of color discrimination (blue/green) was detected using the Farnsworth-Munsell 100-hue test, with peak effects near the time of peak plasma levels. This finding is consistent with the inhibition of PDE6, which is involved in phototransduction in the retina. An evaluation of visual function at doses up to 200 mg revealed no effects of sildenafil on visual acuity, intraocular pressure, or pupillometry. Pediatric use information is approved for Viatris Specialty LLC s, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC s marketing exclusivity rights, this drug product is not labeled with that information.

Absorption and Distribution Sildenafil is rapidly absorbed after oral administration, with a mean absolute bioavailability of 41% (25 to 63%). Maximum observed plasma concentrations are reached within 30 to 120 minutes (median 60 minutes) of oral dosing in the fasted state. When sildenafil is taken with a high-fat meal, the rate of absorption is reduced, with a mean delay in T maxof 60 minutes and a mean reduction in C maxof 29%. The mean steady state volume of distribution (Vss) for sildenafil is 105 L, indicating distribution into the tissues. Sildenafil and its major circulating N-desmethyl metabolite are both approximately 96% bound to plasma proteins. Protein binding is independent of total drug concentrations. Bioequivalence was established between the 20 mg tablet and the 10 mg/mL oral suspension when administered as a 20 mg single oral dose of sildenafil (as citrate). Metabolism and Excretion Sildenafil is cleared predominantly by the CYP3A (major route) and cytochrome P450 2C9 (CYP2C9, minor route) hepatic microsomal isoenzymes. The major circulating metabolite results from N-desmethylation of sildenafil, and is, itself, further metabolized. This metabolite has a phosphodiesterase selectivity profile similar to sildenafil and an in vitropotency for PDE-5 approximately 50% of the parent drug. In healthy volunteers, plasma concentrations of this metabolite are approximately 40% of those seen for sildenafil, so that the metabolite accounts for about 20% of sildenafil s pharmacologic effects. In patients with PAH, however, the ratio of the metabolite to sildenafil is higher. Both sildenafil and the active metabolite have terminal half-lives of about 4 hours. After either oral or intravenous administration, sildenafil is excreted as metabolites predominantly in the feces (approximately 80% of the administered oral dose) and to a lesser extent in the urine (approximately 13% of the administered oral dose). Population Pharmacokinetics Age, gender, race, and renal and hepatic function were included as factors assessed in the population pharmacokinetic model to evaluate sildenafil pharmacokinetics in patients with PAH. The dataset available for the population pharmacokinetic evaluation contained a wide range of demographic data and laboratory parameters associated with hepatic and renal function. None of these factors had a significant impact on sildenafil pharmacokinetics in patients with PAH. In patients with PAH, the average steady-state concentrations were 20 to 50% higher when compared to those of healthy volunteers. There was also a doubling of C minlevels compared to healthy volunteers. Both findings suggest a lower clearance and/or a higher oral bioavailability of sildenafil in patients with PAH compared to healthy volunteers. Pediatric Patients Pediatric use information is approved for Viatris Specialty LLC s, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC s marketing exclusivity rights, this drug product is not labeled with that information. Geriatric Patients Healthy elderly volunteers (65 years or over) had a reduced clearance of sildenafil, resulting in approximately 84% and 107% higher plasma concentrations of sildenafil and its active N-desmethyl metabolite, respectively, compared to those seen in healthy younger volunteers (18 to 45 years). Due to age-differences in plasma protein binding, the corresponding increase in the AUC of free (unbound) sildenafil and its active N-desmethyl metabolite were 45% and 57%, respectively. Renal Impairment In volunteers with mild (CLcr = 50-80 mL/min) and moderate (CLcr = 30-49 mL/min) renal impairment, the pharmacokinetics of a single oral dose of sildenafil (50 mg) was not altered. In volunteers with severe (CLcr less than 30 mL/min) renal impairment, sildenafil clearance was reduced, resulting in approximately doubling of AUC and C maxcompared to age-matched volunteers with no renal impairment. In addition, N-desmethyl metabolite AUC and C maxvalues were significantly increased 200% and 79%, respectively, in patients with severe renal impairment compared to patients with normal renal function. Hepatic Impairment In volunteers with mild to moderate hepatic cirrhosis (Child-Pugh class A and B), sildenafil clearance was reduced, resulting in increases in AUC (84%) and C max(47%) compared to age-matched volunteers with no hepatic impairment. Patients with severe hepatic impairment (Child-Pugh class C) have not been studied. Drug Interaction Studies In vitro studies Sildenafil metabolism is principally mediated by the CYP3A (major route) and CYP2C9 (minor route) cytochrome P450 isoforms. Therefore, inhibitors of these isoenzymes may reduce sildenafil clearance and inducers of these isoenzymes may increase sildenafil clearance. Sildenafil is a weak inhibitor of the cytochrome P450 isoforms 1A2, 2C9, 2C19, 2D6, 2E1 and 3A (IC50 greater than150 M). Sildenafil is not expected to affect the pharmacokinetics of compounds which are substrates of these CYP enzymes at clinically relevant concentrations. In vivo studies The effects of other drugs on sildenafil pharmacokinetics and the effects of sildenafil on the exposure to other drugs are shown in Figure 1 and Figure 2, respectively. Figure 1. Effects of Other Drugs on Sildenafil Pharmacokinetics *** No benefit on exercise capacity when sildenafil added to bosentan therapy [see Clinical Studies ( 14)] Figure 2. Effects of Sildenafil on Other Drugs CYP3A Inhibitors and Beta Blockers Population pharmacokinetic analysis of data from patients in clinical trials indicated an approximately 30% reduction in sildenafil clearance when it was co-administered with mild/moderate CYP3A inhibitors and an approximately 34% reductions in sildenafil clearance when co-administered with beta-blockers. Sildenafil exposure at a dose of 80 mg three times a day without concomitant medication is shown to be 5-fold the exposure at a dose of 20 mg three times a day. This concentration range covers the same increased sildenafil exposure observed in specifically-designed drug interaction studies with CYP3A inhibitors (except for potent inhibitors such as ketoconazole, itraconazole, and ritonavir). CYP3A4 Inducers Including Bosentan Concomitant administration of strong CYP3A inducers is expected to cause substantial decreases in plasma levels of sildenafil. Population pharmacokinetic analysis of data from patients in clinical trials indicated approximately 3-fold the sildenafil clearance when it was co-administered with mild CYP3A inducers. Epoprostenol The mean reduction of sildenafil (80 mg three times a day) bioavailability when co-administered with epoprostenol was 28%, resulting in about 22% lower mean average steady state concentrations. Therefore, the slight decrease of sildenafil exposure in the presence of epoprostenol is not considered clinically relevant. The effect of sildenafil on epoprostenol pharmacokinetics is not known. No significant interactions were shown with tolbutamide (250 mg) or warfarin (40 mg), both of which are metabolized by CYP2C9. Alcohol Sildenafil (50 mg) did not potentiate the hypotensive effect of alcohol in healthy volunteers with mean maximum blood alcohol levels of 0.08%.

SUPER-1 (NCT00644605) - Sildenafil monotherapy [20 mg, 40 mg, and 80 mg three times a day] A randomized, double-blind, placebo-controlled study of sildenafil (SUPER-1) was conducted in 277 patients with PAH (defined as a mean pulmonary artery pressure 25 mmHg at rest with a pulmonary capillary wedge pressure <15 mmHg). Patients were predominantly WHO Functional Classes II-III. Allowed background therapy included a combination of anticoagulants, digoxin, calcium channel blockers, diuretics, and oxygen. The use of prostacyclin analogues, endothelin receptor antagonists, and arginine supplementation were not permitted. Patients who had failed to respond to bosentan were also excluded. Patients with left ventricular ejection fraction less than 45% or left ventricular shortening fraction less than 0.2 also were not studied. Patients were randomized to receive placebo (n = 70) or sildenafil 20 mg (n = 69), 40 mg (n = 67) or 80 mg (n = 71) three times a day for a period of 12 weeks. They had either primary pulmonary hypertension (PPH) (63%), PAH associated with CTD (30%), or PAH following surgical repair of left-to-right congenital heart lesions (7%). The study population consisted of 25% men and 75% women with a mean age of 49 years (range: 18 to 81 years) and baseline 6-minute walk distance between 100 and 450 meters (mean 343). The primary efficacy endpoint was the change from baseline at Week 12 (at least 4 hours after the last dose) in the 6-minute walk distance. Placebo-corrected mean increases in walk distance of 45-50 meters were observed with all doses of sildenafil. These increases were significantly different from placebo, but the sildenafil dose groups were not different from each other (see Figure 3), indicating no additional clinical benefit from doses higher than 20 mg three times a day. The improvement in walk distance was apparent after 4 weeks of treatment and was maintained at Week 8 and Week 12. Figure 3. Change from Baseline in 6-Minute Walk Distance (meters) at Weeks 4, 8, and 12 in SUPER-1: Mean (95% Confidence Interval) Figure 4 displays subgroup efficacy analyses in SUPER-1 for the change from baseline in 6-Minute Walk Distance at Week 12 including baseline walk distance, disease etiology, functional class, gender, age, and hemodynamic parameters. Figure 4. Placebo-Corrected Change From Baseline in 6-Minute Walk Distance (meters) at Week 12 by Study Subpopulation in SUPER-1: Mean (95% Confidence Interval) Key :PAH = pulmonary arterial hypertension; CTD = connective tissue disease; PH = pulmonary hypertension; PAP = pulmonary arterial pressure; PVRI = pulmonary vascular resistance index; TID = three times daily. SUPER-2 (NCT00159887) Long-term Treatment of PAH In a long-term follow-up of patients who were treated with sildenafil (n=277), K-M estimates of survival at 1, 2, and 3 years were 94%, 88%, and 79%, respectively. These uncontrolled observations do not allow comparison with a group not given sildenafil and cannot be used to determine the long term-effect of sildenafil on mortality. PACES-1 (NCT00159861) - Sildenafil Co-administered with Epoprostenol A randomized, double-blind, placebo-controlled study (PACES-1) was conducted in 267 patients with PAH who were taking stable doses of intravenous epoprostenol. Patients had to have a mean pulmonary artery pressure (mPAP) greater than or equal to 25 mmHg and a pulmonary capillary wedge pressure (PCWP) less than or equal to 15 mmHg at rest via right heart catheterization within 21 days before randomization, and a baseline 6-minute walk test distance greater than or equal to 100 meters and less than or equal to 450 meters (mean 349 meters). Patients were randomized to placebo or sildenafil (in a fixed titration starting from 20 mg to 40 mg and then 80 mg, three times a day) and all patients continued intravenous epoprostenol therapy. At baseline patients had PPH (80%) or PAH secondary to CTD (20%); WHO Functional Class I (1%), II (26%), III (67%), or IV (6%); and the mean age was 48 years, 80% were female, and 79% were Caucasian. There was a statistically significant greater increase from baseline in 6-minute walk distance at Week 16 (primary endpoint) for the sildenafil group compared with the placebo group. The mean change from baseline at Week 16 (last observation carried forward) was 30 meters for the sildenafil group compared with 4 meters for the placebo group giving an adjusted treatment difference of 26 meters (95% CI: 10.8, 41.2) (p = 0.0009). Patients on sildenafil achieved a statistically significant reduction in mPAP compared to those on placebo. A mean placebo-corrected treatment effect of -3.9 mmHg was observed in favor of sildenafil (95% CI: -5.7, -2.1) (p = 0.00003). Time to clinical worsening of PAH was defined as the time from randomization to the first occurrence of a clinical worsening event (death, lung transplantation, initiation of bosentan therapy, or clinical deterioration requiring a change in epoprostenol therapy). Table 4 displays the number of patients with clinical worsening events in PACES-1. Kaplan-Meier estimates and a stratified log-rank test demonstrated that placebo-treated patients were 3 times more likely to experience a clinical worsening event than sildenafil-treated patients and that sildenafil-treated patients experienced a significant delay in time to clinical worsening versus placebo-treated patients (p = 0.0074). Kaplan-Meier plot of time to clinical worsening is presented in Figure 5. Table 4. Clinical Worsening Events in PACES-1 Placebo (N = 131) Sildenafil (N = 134) Number of patients with clinical worsening first event 23 8 First Event All Events First Event All Events Death, n 3 4 0 0 Lung transplantation, n 1 1 0 0 Hospitalization due to PAH, n 9 11 8 8 Clinical deterioration resulting in: 9 16 0 2 Change of Epoprostenol Dose, n Initiation of Bosentan, n 1 1 0 0 Proportion worsened 0.187 0.062 95% Confidence Interval (0.12 to 0.26) (0.02 to 0.10) Figure 5. Kaplan-Meier Plot of Time (in Days) to Clinical Worsening of PAH in PACES-1 Improvements in WHO Functional Class for PAH were also demonstrated in patients on sildenafil compared to placebo. More than twice as many sildenafil-treated patients (36%) as placebo-treated patients (14%) showed an improvement in at least one functional New York Heart Association (NYHA) class for PAH. Study A1481243 (NCT00323297) - Sildenafil Added to Bosentan Therapy Lack of Effect on Exercise Capacity A randomized, double-blind, placebo-controlled study was conducted in 103 patients with PAH who were on bosentan therapy for a minimum of 3 months. The PAH patients included those with primary PAH and PAH associated with CTD. Patients were randomized to placebo or sildenafil (20 mg three times a day) in combination with bosentan (62.5 to 125 mg twice a day). The primary efficacy endpoint was the change from baseline at Week 12 in 6-minute walk distance (6MWD). The results indicate that there is no significant difference in mean change from baseline on 6MWD observed between sildenafil 20 mg plus bosentan and bosentan alone. Pediatric use information is approved for Viatris Specialty LLC s, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC s marketing exclusivity rights, this drug product is not labeled with that information.

Sildenafil (sil den' a fil) tablets What is the most important information I should know about sildenafil tablets? Never take sildenafil tablets with any nitrate or guanylate cyclase stimulator medicines. Your blood pressure could drop quickly to an unsafe level. Nitrates include: Medicines that treat chest pain (angina) Nitroglycerin in any form including tablets, patches, sprays, and ointments Isosorbide mononitrate or dinitrate Street drugs called poppers (amyl nitrate, butyl nitrate or nitrite) Guanylate cyclase stimulators include: Riociguat, a medicine that treats pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension. Ask your healthcare provider or pharmacist if you are not sure if you are taking a nitrate or a guanylate cyclase stimulator medicine. See What are the possible side effects of sildenafil tablets? for more information about side effects. What are sildenafil tablets? Sildenafil tablets are a prescription medicine used to treat pulmonary arterial hypertension (PAH). PAH is a type of high blood pressure in the arteries of your lungs. sildenafil tablets may be used in: adults to improve your ability to exercise and help slow down the worsening of your physical condition. It is not known if sildenafil tablets are safe and effective in children younger than 1 year of age. Do not take sildenafil tablets if you: take medicines called nitrates. take riociguat, a guanylate cyclase stimulator medicine. are allergic to sildenafil or any of the ingredients in sildenafil tablets. See the end of this leaflet for a complete list of ingredients in sildenafil tablets. Before taking sildenafil tablets, tell your healthcare provider about all of your medical conditions, including if you: have low blood pressure have heart problems have pulmonary veno-occlusive disease (PVOD) have bleeding problems or a stomach (peptic) ulcer. It is not known if sildenafil tablets are safe in people with bleeding problems or who have a stomach ulcer. have an eye problem called retinitis pigmentosa have ever had sudden loss of vision in one or both eyes, including an eye problem called non-arteritic anterior ischemic optic neuropathy (NAION) have ever had hearing problems such as ringing in the ears, dizziness, or loss of hearing have a deformed penis shape or Peyronie s disease have any blood cell problems such as sickle cell anemia are pregnant or plan to become pregnant. It is not known if sildenafil tablets will harm your unborn baby. are breastfeeding or plan to breastfeed. Sildenafil passes into your breast milk. It is not known if it can harm your baby. Talk with your healthcare provider about the best way to feed your baby during treatment with sildenafil tablets. Tell your healthcare provider about all of the medicines you take,including prescription and over-the-counter medicines, vitamins, and herbal supplements. Sildenafil tablets and certain other medicines may affect each other and can cause side effects. Especially tell your healthcare provider if you take: nitrates or guanylate cyclase stimulators. See What is the most important information I should know about sildenafil tablets? medicines to treat high blood pressure medicines for erectile dysfunction (impotence). Sildenafil tablets contains sildenafil, which is the same medicine found in another medicine called VIAGRA . VIAGRA is used for the treatment of erectile dysfunction. Do nottake VIAGRA or other PDE-5 inhibitors during treatment with sildenafil tablets. 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 your medicines and show it to your healthcare provider and pharmacist when you get a new medicine. How should I take sildenafil tablets? Take or give sildenafil tablets exactly as your healthcare provider tells you. Your healthcare provider may change your dose of sildenafil tablets as needed. Do not change your dose or stop taking sildenafil tablets without talking to your healthcare provider. Take your prescribed dose of sildenafil tablets 3 times a day. If you take too much sildenafil, call your healthcare provider or go to the nearest hospital emergency room right away. What are the possible side effects of sildenafil tablets? Sildenafil tablets may cause serious side effects, including: See What is the most important information I should know about sildenafil tablets? Decreased blood pressure.Sildenafil tablets may cause low blood pressure that last for a short time. If you take medicines to treat high blood pressure, your healthcare provider should monitor your blood pressure during treatment with sildenafil tablets. Decreased eyesight or permanent loss of vision in one or both eyescan be a sign of non-arteritic anterior ischemic optic neuropathy (NAION). Most people who develop NAION have certain risk factors. You can ask your healthcare provider if you have questions about risk factors for NAION. If you notice a sudden decrease or loss of vision in one or both eyes during treatment with sildenafil tablets, contact your healthcare provider right away. Sudden decrease or loss of hearing, sometimes with ringing in the ears and dizziness .If you notice a sudden decrease or loss of hearing during treatment with sildenafil tablets, contact your healthcare provider right away. In men, an erection that lasts for more than 4 hours (priapism).If you have an erection, with or without pain, that lasts more than 4 hours, contact your healthcare provider or get emergency medical help right away. A painful erection that lasts more than 6 hours must be treated right away or you can have lasting damage to your penis, including the inability to have erections. The most common side effects of sildenafil tablets in adults include: nosebleeds headache upset stomach getting red or hot in the face (flushing) arm or leg pain muscle aches and pain back pain diarrhea These are not all the possible side effects of sildenafil tablets. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. How should I store sildenafil tablets? Store sildenafil tablets at room temperature between 68 F to 77 F (20 C to 25 C). Keep sildenafil tablets and all medicines out of the reach of children. General information about the safe and effective use of sildenafil tablets. Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use sildenafil tablets for a condition for which it was not prescribed. Do not give sildenafil tablets to other people, even if they have the same symptoms that you have. It may harm them. You can ask your healthcare provider or pharmacist for information about sildenafil tablets that is written for health professionals. What are the ingredients in sildenafil tablets? Active ingredients:sildenafil citrate, USP Inactive ingredients:croscarmellose sodium, dibasic calcium phosphate anhydrous, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, titanium dioxide and triacetin Pediatric use information is approved for Viatris Specialty LLC s, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC s marketing exclusivity rights, this drug product is not labeled with that information. Manufactured for: Camber Pharmaceuticals, Inc. Piscataway, NJ 08854 By: HETERO TM Hetero Labs Limited, Unit V, Polepally, Jadcherla, Mahabubnagar 509 301, India. For more information, call 1-866-495-1995. All brand names listed are the registered trademarks of their respective owners and are not trademarks of Hetero Labs Limited. This Patient Information has been approved by the U.S. Food and Drug Administration. Revised: 02/2024