Sildenafil

Sildenafil

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Questions & Answers

Side Effects & Adverse Reactions

There is currently no warning information available for this product. We apologize for any inconvenience.

Legal Issues

There is currently no legal information available for this drug.

FDA Safety Alerts

There are currently no FDA safety alerts available for this drug.

Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.

Uses

Sildenafil tablets are indicated for the treatment of pulmonary arterial hypertension (WHO Group I) in adults to improve exercise ability and delay clinical worsening. The delay in clinical worsening was demonstrated when sildenafil tablets were added to background epoprostenol therapy [see Clinical Studies (14)].

Studies establishing effectiveness were short-term (12 to 16 weeks), and included predominately patients with New York Heart Association (NYHA) Functional Class II-III symptoms and idiopathic etiology (71%) or associated with connective tissue disease (CTD) (25%).

Limitation of Use

The efficacy of sildenafil tablets in the treatment of pulmonary arterial hypertension (PAH) has not been adequately evaluated in patients taking bosentan.

History

There is currently no drug history available for this drug.

Other Information

Sildenafil citrate, USP, phosphodiesterase-5 (PDE-5) inhibitor, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type-5 (PDE-5). Sildenafil is also marketed as VIAGRA® for erectile dysfunction.

Sildenafil citrate, USP is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo [4,3-d] pyrimidin-5-yl)-4-ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate and has the following structural formula:

f7c6df1a-figure-02

Sildenafil citrate, USP is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7.

Sildenafil Tablets: Sildenafil tablets are formulated as white to off-white, round shaped film-coated tablets with 20 mg of sildenafil for oral administration. In addition to the active ingredient, sildenafil citrate, USP, each tablet contains the following inactive ingredients: croscarmellose sodium, dibasic calcium phosphate anhydrous, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, talc and titanium dioxide.

Sildenafil Manufacturers


  • Avpak
    Sildenafil (Sildenafil) Tablet [Avpak]
  • Auromedics Pharma Llc
    Sildenafil (Sildenafil Citrate) Injection, Solution [Auromedics Pharma Llc]
  • American Health Packaging
    Sildenafil Tablet [American Health Packaging]
  • Northwind Pharmaceuticals, Llc
    Sildenafil Tablet, Film Coated [Northwind Pharmaceuticals, Llc]
  • Greenstone Llc
    Sildenafil (Sildenafil Citrate) Tablet, Film Coated [Greenstone Llc]
  • Dr. Reddy’s Laboratories Limited
    Sildenafil Tablet, Film Coated [Dr. Reddy’s Laboratories Limited]
  • Northstar Rxllc
    Sildenafil (Sildenafil Citrate) Tablet, Film Coated [Northstar Rxllc]
  • Watson Laboratories, Inc.
    Sildenafil (Sildenafil Citrate) Tablet, Film Coated [Watson Laboratories, Inc.]
  • Mylan Pharmaceuticals Inc.
    Sildenafil (Sildinafil) Tablet, Film Coated [Mylan Pharmaceuticals Inc.]
  • Bryant Ranch Prepack
    Sildenafil Tablet [Bryant Ranch Prepack]
  • Amneal Pharmaceuticals, Llc
    Sildenafil Tablet [Amneal Pharmaceuticals, Llc]
  • Remedyrepack Inc.
    Sildenafil (Sildenafil ) Tablet, Film Coated [Remedyrepack Inc. ]
  • Remedyrepack Inc.
    Sildenafil (Sildenafil ) Tablet, Film Coated [Remedyrepack Inc. ]
  • Avkare, Inc.
    Sildenafil (Sildenafil) Tablet, Film Coated [Avkare, Inc.]
  • Macleods Pharmaceuticals Limited
    Sildenafil Tablet, Film Coated [Macleods Pharmaceuticals Limited]
  • Apotex Corp.
    Sildenafil Tablet, Film Coated [Apotex Corp.]
  • Bluepoint Laboratories
    Sildenafil Tablet [Bluepoint Laboratories]
  • Teva Pharmaceuticals Usa Inc
    Sildenafil Tablet, Film Coated [Teva Pharmaceuticals Usa Inc]
  • Kaiser Foundation Hospitals
    Sildenafil (Sildenafil Citrate) Tablet, Film Coated [Kaiser Foundation Hospitals]
  • Directrx
    Sildenafil Tablet, Film Coated [Directrx]

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