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Navafil Tablet 50 mg (8pcs)

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Avanafil

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Indications

Avanafil is a phosphodiesterase 5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction

Therapeutic Class

Drugs for Erectile Dysfunction

Pharmacology

Avanafil is a selective phosphodiesterase 5 (PDE5) enzyme inhibitor used for the treatment of erectile dysfunction caused by diabetes, age induced oxidative stress or other complications. Avanafil inhibits the cGMP specific phosphodiesterase type 5 (PDE5) which is responsible for degradation of cGMP in the corpus cavernosum located around the penis. Penile erection during sexual stimulation is caused by increased penile blood flow resulting from the relaxation of penile arteries and corpus cavernosal smooth muscle. This response is mediated by the release of nitric oxide (NO) from nerve terminals and endothelial cells, which stimulates the synthesis of cGMP in smooth muscle cells. Cyclic GMP causes smooth muscle relaxation and increased blood flow into the corpus cavernosum. The inhibition of phosphodiesterase type 5 (PDE5) by avanafil enhances erectile function by increasing the amount of cGMP.

Dosage & Administration

For most patients, the starting dose is 100 mg taken approximately 30 minutes before sexual activity, on an as needed basis. Avanafil may be taken with or without food. Take Avanafil no more than once a day

The dose may be increased to 200 mg or decreased to 50 mg based on efficacy and/or tolerability. Use the lowest dose that provides benefit

Do not use Avanafil with strong CYP3A4 inhibitors. If taking a moderate CYP3A4 inhibitor, the dose should be no more than 50 mg in a 24-hour period. In patients on stable alpha-blocker therapy, the recommended starting dose of Avanafil is 50 mg

Interaction

Avanafil can potentiate the hypotensive effect of nitrates, alphablockers, antihypertensives, and alcohol. CYP3A4 inhibitors (e.g., ketoconazole, ritonavir, erythromycin) increase Avanafil exposure

Contraindications

Administration of Avanafil to patients using any form of organic nitrate is contraindicated. Hypersensitivity to any component of the Avanafil tablet

Side Effects

Most common adverse reactions (greater than or equal to 2%) include headache, flushing, nasal congestion, nasopharyngitis, and back pain

Pregnancy & Lactation

Pregnancy Category C. Avanafil is not indicated for use in women. There are no adequate and well-controlled studies of Avanafil in pregnant women.

Precautions & Warnings

Patients should not use Avanafil if sexual activity is inadvisable due to cardiovascular status or any other reason

Use of Avanafil with alpha-blockers, other antihypertensives, or substantial amounts of alcohol (greater than 3 units) may lead to hypotension

Patients should seek emergency treatment if an erection lasts greater than 4 hours

Patients should stop Avanafil and seek medical care if a sudden loss of vision occurs in one or both eyes, which could be a sign of Non Arteritic Ischemic Optic Neuropathy (NAION). Discuss with patients the increased risk of NAION in patients with a history of NAION

Patients should stop taking Avanafil and seek prompt medical attention in the event of sudden decrease or loss of hearing

Use in Special Populations

Pediatric Use: STENDRA is not indicated for use in pediatric patients. Safety and efficacy in patients below the age of 18 years has not been established.

Geriatric Use: Of the total number of subjects in clinical studies of avanafil, approximately 23% were 65 and over. No overall differences in efficacy and safety were observed between subjects over 65 years of age compared to younger subjects; therefore no dose adjustment is warranted based on age alone. However, a greater sensitivity to medication in some older individuals should be considered

Renal & hepatic impairment patients: Do not use in patients with severe renal & hepatic impairment

Overdose Effects

Single doses up to 800 mg have been given to healthy subjects, and multiple doses up to 300 mg have been given to patients. In cases of overdose, standard supportive measures should be adopted as required. Renal dialysis is not expected to accelerate clearance because avanafil is highly bound to plasma proteins and is not significantly eliminated in the urine.

Storage Conditions

Store at 20-25°C
Sold By : Emedi SKU: Medi-5147 Categories: , Tags: ,
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