Should signs of pulmonary edema occur when sildenafil citrate is administered, consider the possibility of associated PVOD.5.3 EpistaxisThe incidence of epistaxis was 13% in patients taking sildenafil citrate with PAH secondary to CTD.
Should signs of pulmonary edema occur when sildenafil citrate is administered, consider buy sildenafil citrate online canada the possibility of associated PVOD. The incidence of epistaxis was 13% in patients taking sildenafil citrate with PAH secondary to CTD. The safety of sildenafil citrate is unknown in patients with bleeding disorders or active peptic ulceration. When used to treat erectile dysfunction, non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including permanent loss of vision, has been reported postmarketing in temporal association with the use of PDE-5 inhibitors, including sildenafil. Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil citrate.
There are no controlled clinical data on the safety or efficacy of sildenafil citrate in patients with retinitis pigmentosa, a minority of whom have genetic disorders of retinal phosphodiesterases. Therefore, use of sildenafil citrate in patients with retinitis pigmentosa is not recommended. Cases of sudden decrease or loss of hearing, which may be accompanied by tinnitus and dizziness, have been reported in temporal association with the use sildenafil tablets 125 of PDE-5 inhibitors, including sildenafil citrate. It is not possible to determine whether these reported events are related directly to the use of sildenafil citrate, to the patient's underlying risk factors for hearing loss, a combination of these factors, or to other factors. Advise patients to seek prompt medical attention in the event of sudden decrease or loss of hearing while taking PDE-5 inhibitors, including sildenafil tablets. The incidence of epistaxis was also higher in sildenafil-treated patients with a concomitant oral vitamin K antagonist (9% versus 2% in those not treated with concomitant vitamin K antagonist).The safety of sildenafil citrate is unknown in patients with bleeding disorders or active peptic ulceration.5.4 Visual LossWhen used to treat erectile dysfunction, non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including permanent loss of vision, has been reported postmarketing in temporal association with the use of PDE-5 inhibitors, including sildenafil.
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Most patients had underlying anatomic or vascular risk factors for developing NAION, including low cup to disc ratio (“crowded disc”).Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil citrate.There are no controlled clinical data on the safety or efficacy of sildenafil citrate in patients with retinitis pigmentosa, a minority of whom have genetic disorders of retinal phosphodiesterases.
| Population Group | Frequency |
|---|---|
| Adults with ED | Once per day as needed |
| Patients with PAH | As prescribed by physician |
| Special considerations | Avoid exceeding prescribed dosage |
Therefore, use of sildenafil citrate in patients with retinitis pigmentosa is not recommended.5.5 Hearing LossCases of sudden decrease or loss of hearing, which may be accompanied by tinnitus and dizziness, have been reported in temporal association with the use of PDE-5 inhibitors, including sildenafil citrate. It is not possible to determine whether these reported events are related directly to the use of sildenafil citrate, to the patient's underlying risk factors for hearing loss, a combination of these factors, or to other factors.Advise patients to seek prompt medical attention in the event of sudden decrease or loss of hearing while taking PDE-5 inhibitors, including sildenafil tablets.5.6 Combination with other PDE-5 inhibitorsSildenafil is also marketed as VIAGRA ®. Inform patients taking sildenafil tablets not to take VIAGRA or other PDE-5 inhibitors.5.7 PriapismUse sildenafil citrate with caution in patients with anatomical deformation of the penis (e.g., angulation, cavernosal fibrosis, or Peyronie's disease) or in patients who have conditions, which may predispose them to priapism (e.g., sickle cell anemia, multiple myeloma, or leukemia).
If priapism (painful erection greater than 6 hours in duration) is not treated immediately, penile tissue damage and permanent loss of potency could result.5.8 Vaso-occlusive Crisis in Patients with Pulmonary Hypertension Secondary to Sickle Cell DiseaseIn a small, prematurely terminated study of patients with pulmonary hypertension (PH) secondary to sickle cell disease, vaso-occlusive crises requiring hospitalization were more commonly reported by patients who received sildenafil citrate than by those randomized to placebo. The effectiveness and safety of sildenafil citrate in the treatment of PH secondary to sickle cell disease has not been established.
NAION [ see Warnings and Precautions ( 5.4), Patient Counseling Information ( 17) ]. 7 DRUG INTERACTIONS Concomitant use of sildenafil citrate with nitrates in any form is contraindicated [see Contraindications ( 4)] .Strong CYP3A InhibitorsConcomitant use of sildenafil citrate with strong CYP3A inhibitors is not recommended [ see Clinical Pharmacology ( 12.3) ].Moderate-to-Strong CYP3A InducersConcomitant use of sildenafil citrate with moderate-to-strong CYP3A inducers (such as bosentan) decreases the sildenafil exposure.
Sildenafil citrate has vasodilatory properties, resulting in mild and transient decreases in blood pressure. Monitor blood pressure when co-administering blood pressure lowering drugs with sildenafil citrate.
| Drug Class | Interaction Effect |
|---|---|
| Nitrates | Dangerous drop in blood pressure |
| Alpha-Blockers | Enhanced hypotensive effect |
| CYP3A4 inhibitors (e.g., ketoconazole, erythromycin) | Increased sildenafil levels |
| Other PDE5 inhibitors | Risk of overdose and side effects |
Should signs of pulmonary edema occur when sildenafil citrate is administered, consider buy sildenafil citrate online canada the possibility of associated PVOD.
The incidence of epistaxis was 13% in patients taking sildenafil citrate with PAH secondary to CTD. The safety of sildenafil citrate is unknown in patients with bleeding disorders or active peptic ulceration.
When used to treat erectile dysfunction, non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including permanent loss of vision, has been reported postmarketing in temporal association with the use of PDE-5 inhibitors, including sildenafil. Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil citrate. There are no controlled clinical data on the safety or efficacy of sildenafil citrate in patients with retinitis pigmentosa, a minority of whom have genetic disorders of retinal phosphodiesterases.
| Contraindication | Explanation |
|---|---|
| Use with Nitrates | Risk of severe hypotension |
| History of Priapism | May cause prolonged erections |
| Severe Cardiovascular Disease | Increased risk of adverse events |
| Eye Disorders (e.g., Non-arteritic ischemic optic neuropathy) | Caution advised |
Therefore, use of sildenafil citrate in patients with retinitis pigmentosa is not recommended.
Cases of sudden decrease or loss of hearing, which may be accompanied by tinnitus and dizziness, have been reported in temporal association with the use sildenafil tablets 125 of PDE-5 inhibitors, including sildenafil citrate. It is not possible to determine whether these reported events are related directly to the use of sildenafil citrate, to the patient's underlying risk factors for hearing loss, a combination of these factors, or to other factors.
In a small, prematurely terminated study of patients with pulmonary hypertension (PH) secondary to sickle cell disease, vaso-occlusive crises requiring hospitalization were more commonly reported by patients who received sildenafil citrate than by those randomized to placebo. 6 ADVERSE REACTIONS 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) ]6.1 Clinical Trials ExperienceBecause 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 citrate-treated adults with PAH (WHO Group I) [see Clinical Studies (14)] the adverse reactions that were reported by at least 10% of sildenafil citrate-treated patients in any dosing group, and were more frequent in sildenafil citrate-treated patients than in placebo-treated patients are shown in Table 1. The overall frequency of discontinuation in sildenafil citrate-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%.In a placebo-controlled fixed dose titration study (PACES-1) of sildenafil citrate (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 citrate + 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.6.2 Postmarketing ExperienceThe following adverse reactions have been identified during post approval use of sildenafil (marketed for both PAH and erectile dysfunction).
It is not possible to determine whether these events are related directly to sildenafil, to sexual activity, to the patient's underlying cardiovascular disease, or to a combination of these or other factors.Nervous SystemSeizure, seizure recurrenceOphthalmologicNAION [ see Warnings and Precautions ( 5.4), Patient Counseling Information ( 17) ]. 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) ] 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 citrate-treated adults with PAH (WHO Group I) [see Clinical Studies (14)] the adverse reactions that were reported by at least 10% of sildenafil citrate-treated patients in any dosing group, and were more frequent in sildenafil citrate-treated patients than in placebo-treated patients sildenafil from canada are shown in Table 1. In a placebo-controlled fixed dose titration study (PACES-1) of sildenafil citrate (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 citrate + epoprostenol group compared with 13% of subjects in the epoprostenol group [ see Clinical Studies ( 14) ]. It is not possible to determine whether these events are related directly to sildenafil, to sexual activity, to the patient's underlying cardiovascular disease, or to a combination of these or other factors. Advise patients to seek prompt medical attention in the event of sudden decrease or loss of hearing while taking PDE-5 inhibitors, including sildenafil tablets.
In a small, prematurely terminated study of patients with pulmonary hypertension (PH) secondary to sickle cell disease, vaso-occlusive crises requiring hospitalization were more commonly reported by patients who received sildenafil citrate than by those randomized to placebo. 6 ADVERSE REACTIONS 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) ]6.1 Clinical Trials ExperienceBecause 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 citrate-treated adults with PAH (WHO Group I) [see Clinical Studies (14)] the adverse reactions that were reported by at least 10% of sildenafil citrate-treated patients in any dosing group, and were more frequent in sildenafil citrate-treated patients than in placebo-treated patients are shown in Table 1. The overall frequency of discontinuation in sildenafil citrate-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%.In a placebo-controlled fixed dose titration study (PACES-1) of sildenafil citrate (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 citrate + 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.6.2 Postmarketing ExperienceThe following adverse reactions have been identified during post approval use of sildenafil (marketed for both PAH and erectile dysfunction). It is not possible to determine whether these events are related directly to sildenafil, to sexual activity, to the patient's underlying cardiovascular disease, or to a combination of these or other factors.Nervous SystemSeizure, seizure recurrenceOphthalmologicNAION [ see Warnings and Precautions ( 5.4), Patient Counseling Information ( 17) ]. 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) ] 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 citrate-treated adults with PAH (WHO Group I) [see Clinical Studies (14)] the adverse reactions that were reported by at least 10% of sildenafil citrate-treated patients in any dosing group, and were more frequent in sildenafil citrate-treated patients than in placebo-treated patients sildenafil from canada are shown in Table 1. In a placebo-controlled fixed dose titration study (PACES-1) of sildenafil citrate (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 citrate + epoprostenol group compared with 13% of subjects in the epoprostenol group [ see Clinical Studies ( 14) ]. It is not possible to determine whether these events are related directly to sildenafil, to sexual activity, to the patient's underlying cardiovascular disease, or to a combination of these or other factors. NAION [ see Warnings and Precautions ( 5.4), Patient Counseling Information ( 17) ].
Should signs of pulmonary edema occur when sildenafil citrate is administered, consider the possibility of associated PVOD.5.3 EpistaxisThe incidence of epistaxis was 13% in patients taking sildenafil citrate with PAH secondary to CTD. The incidence of epistaxis was also higher in sildenafil-treated patients with a concomitant oral vitamin K antagonist (9% versus 2% in those not treated with concomitant vitamin K antagonist).The safety of sildenafil citrate is unknown in patients with bleeding disorders or active peptic ulceration.5.4 Visual LossWhen used to treat erectile dysfunction, non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including permanent loss of vision, has been reported postmarketing in temporal association with the use of PDE-5 inhibitors, including sildenafil. Most patients had underlying anatomic or vascular risk factors for developing NAION, including low cup to disc ratio (“crowded disc”).Advise patients to seek immediate medical attention in the event of a sudden loss of vision in one or both eyes while taking sildenafil citrate.There are no controlled clinical data on the safety or efficacy of sildenafil citrate in patients with retinitis pigmentosa, a minority of whom have genetic disorders of retinal phosphodiesterases. Therefore, use of sildenafil citrate in patients with retinitis pigmentosa is not recommended.5.5 Hearing LossCases of sudden decrease or loss of hearing, which may be accompanied by tinnitus and dizziness, have been reported in temporal association with the use of PDE-5 inhibitors, including sildenafil citrate. It is not possible to determine whether these reported events are related directly to the use of sildenafil citrate, to the patient's underlying risk factors for hearing loss, a combination of these factors, or to other factors.Advise patients to seek prompt medical attention in the event of sudden decrease or loss of hearing while taking PDE-5 inhibitors, including sildenafil tablets.5.6 Combination with other PDE-5 inhibitorsSildenafil is also marketed as VIAGRA ®.
Inform patients taking sildenafil tablets not to take VIAGRA or other PDE-5 inhibitors.5.7 PriapismUse sildenafil citrate with caution in patients with anatomical deformation of the penis (e.g., angulation, cavernosal fibrosis, or Peyronie's disease) or in patients who have conditions, which may predispose them to priapism (e.g., sickle cell anemia, multiple myeloma, or leukemia). If priapism (painful erection greater than 6 hours in duration) is not treated immediately, penile tissue damage and permanent loss of potency could result.5.8 Vaso-occlusive Crisis in Patients with Pulmonary Hypertension Secondary to Sickle Cell DiseaseIn a small, prematurely terminated study of patients with pulmonary hypertension (PH) secondary to sickle cell disease, vaso-occlusive crises requiring hospitalization were more commonly reported by patients who received sildenafil citrate than by those randomized to placebo. The effectiveness and safety of sildenafil citrate in the treatment of PH secondary to sickle cell disease has not been established. Sildenafil citrate has vasodilatory properties, resulting in mild and transient decreases in blood pressure. Monitor blood pressure when co-administering blood pressure lowering drugs with sildenafil citrate. 7 DRUG INTERACTIONS Concomitant use of sildenafil citrate with nitrates in any form is contraindicated [see Contraindications ( 4)] .Strong CYP3A InhibitorsConcomitant use of sildenafil citrate with strong CYP3A inhibitors is not recommended [ see Clinical Pharmacology ( 12.3) ].Moderate-to-Strong CYP3A InducersConcomitant use of sildenafil citrate with moderate-to-strong CYP3A inducers (such as bosentan) decreases the sildenafil exposure.