Viagra
Erectile Dysfunction
Reference:
- Upjohn Canada ULC. VIAGRA Product Monograph. Available from https://www.pfizer.ca/sites/default/files/202005/VIAGRA_PM_E_237589_2020.05.05.pdf
Viagra Resources
VIAGRA - Patient resources
VIAGRA (sildenafil citrate) is indicated for the treatment of erectile dysfunction (ED), which is the inability to achieve or maintain a penile erection sufficient for satisfactory sexual performance.
Resources for your patients
Contains important product information including warnings, precautions, interactions, and dosing.
Provides helpful tips for patients about getting their brand name VIAGRA and specific information about their medication and condition.
Provides VIAGRA-specific information for patients.
Safety Information
Indications and clinical use:
VIAGRA (sildenafil citrate) is indicated for the treatment of erectile dysfunction (ED), which is the inability to achieve or maintain a penile erection sufficient for satisfactory sexual performance.
Contraindications:
- Patients taking any type of nitrate drug therapy, or who utilize short acting nitrate-containing medications, due to the risk of developing potentially life-threatening hypotension
- Use of organic nitrates, either regularly and/or intermittently, in any form (e.g., oral, sublingual, transdermal, by inhalation)
- In men for whom sexual activity is inadvisable
- Patients with ED with previous episode of non-arteritic anterior ischemic optic neuropathy (NAION)
- Co-administration with guanylate cyclase stimulators
Relevant warnings and precautions:
- History of cardiovascular disease
- Patients taking an alpha-blocker
- Underlying conditions that could be inversely affected by the vasodilatory effects of VIAGRA
- Combination with sodium nitroprusside (a nitric oxide donor) or heparin
- Patients with bleeding disorders or active peptic ulceration
- Consider starting dose reduction in patients with hepatic and/or severe renal impairment and/or elderly patients
- Reports of a decrease in, or sudden loss of, vision in one or both eyes
- Increased risk of NAION
- Patients with retinitis pigmentosa (minority have genetic disorders of retinal phosphodiesterases)
- Visual effects
- Sudden decrease or loss of hearing, which may be accompanied by tinnitus and dizziness
- Priapism
- Use in combination with other PDE5 inhibitors, other pulmonary arterial hypertension (PAH) treatments containing sildenafil, or other agents for the treatment of ED
- Caution in patients with anatomical deformation of the penis
- Stevens-Johnson’s Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN)
- Driving and operating machinery
For more information:
Please consult the Product Monograph for important information relating to adverse reactions, drug interactions, and dosing information which have not been discussed in this piece. The Product Monograph is also available by calling 1-800-463-6001.
Reference:
- Upjohn Canada ULC. VIAGRA Product Monograph. Available from https://www.pfizer.ca/sites/default/files/202005/VIAGRA_PM_E_237589_2020.05.05.pdf
Product Monograph
Upjohn Canada ULC. VIAGRA Product Monograph. Available from https://www.pfizer.ca/sites/default/files/202005/VIAGRA_PM_E_237589_2020.05.05.pdf.