Precedex
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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
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FDA Safety Alerts
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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 to III symptoms and idiopathic etiology (71%) or associated with connective tissue disease (CTD) (25%).
History
There is currently no drug history available for this drug.
Other Information
Sildenafil tablet, 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:
Sildenafil citrate, USP is a white to off white crystalline powder slightly soluble in methanol and a molecular weight of 666.70. Sildenafil tablets are formulated as white to off white, film coated, round tablets for oral administration. Each tablet contains sildenafil citrate, USP equivalent to 20 mg of sildenafil. In addition to the active ingredient, sildenafil citrate, USP, each tablet contains the following inactive ingredients: croscarmellose sodium, dibasic calcium phosphate anhydrous, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, titanium dioxide and triacetin.
Sources
Precedex Manufacturers
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Hospira, Inc.
![Precedex (Dexmedetomidine Hydrochloride) Injection, Solution, Concentrate Precedex (Dexmedetomidine Hydrochloride) Injection, Solution [Hospira, Inc.]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Precedex | Camber Pharmaceuticals, Inc.
2.1 Sildenafil TabletsThe recommended dose of sildenafil tablets is 20 mg three times a day. Administer sildenafil tablet doses 4 to 6 hours apart.
In the clinical trial no greater efficacy was achieved with the use of higher doses. Treatment with doses higher than 20 mg three times a day is not recommended.
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