Silfil 50 mg (Tablet)

Unit Price: ৳ 30.10 (2 x 10: ৳ 602.00)
Strip Price: ৳ 301.00

Medicine Details

Category Details
Generic Sildenafil citrate
Company Novatek pharmaceuticals ltd
Also available as

Therapeutic Class

  • Drugs for Erectile Dysfunction

Indications

  • Treatment of erectile dysfunction
  • Treatment of pulmonary arterial hypertension

Description

  • Selective, reversible inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5)

Mode of Action

  • Inhibition of PDE5 by Silfil increases levels of cGMP in the corpus cavernosum, resulting in smooth muscle relaxation and inflow of blood into the penile tissues
  • Rapid absorption after oral administration with mean absolute bioavailability of 41%
  • Elimination predominantly by hepatic metabolism
  • Metabolized by cytochrome P450 3A4 and converted to an active metabolite with similar properties to the parent compound

Dosage & Administration

  • Recommended dose for erectile dysfunction is 50 mg taken approximately 1 hour before sexual activity. Can be increased to a maximum of 100 mg or decreased to 25 mg based on effectiveness and toleration
  • Recommended dose for pulmonary arterial hypertension is 20 mg three times a day

Interaction

  • Metabolism is mediated by the cytochrome P450 (CYP) isoforms 3A4 and 2C9, and inhibitors/inducers of these isoenzymes may affect Silfil clearance
  • Co-administration with CYP3A4 inhibitors may increase Silfil plasma levels
  • Co-administration with alpha-blockers should be done cautiously
  • Use with nitrates is contraindicated
  • Potential effects with other medications such as antihypertensives and protease inhibitors

Contraindications

  • Hypersensitivity to any component of the medication
  • Use with nitrates

Side Effects

  • Various body system-related side effects including cardiological, digestive, hemic and lymphatic, metabolic and nutritional, musculoskeletal, nervous, respiratory, dermatological, and urogenital effects
  • Serious cardiovascular, cerebrovascular, and vascular events reported post-marketing

Pregnancy & Lactation

  • Pregnancy category B with no adequate and well-controlled studies in pregnant women

Precautions & Warnings

  • Caution advised when co-administering with alpha-blockers
  • Considerations for patients with specific conditions such as cardiovascular disease, bleeding disorders, and anatomical deformation of the penis
  • Potential for cardiac risk of sexual activity in patients with preexisting cardiovascular disease
  • Sensitivity of vasodilators in patients with certain conditions
  • Warnings for prolonged erection and priapism, and precautions for patients taking ritonavir

Overdose Effects

  • Adverse events similar to those seen at lower doses but with increased incidence rates and severities
  • Standard supportive measures should be adopted in cases of overdose
  • Renal dialysis not expected to accelerate clearance as Silfil is highly bound to plasma proteins

Storage Conditions

  • Keep in a dry place, away from light and heat. Keep out of the reach of children

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