Proscar

An orally active testosterone 5-alpha-reductase inhibitor. It is used as a surgical alternative for treatment of benign prostatic hyperplasia. .
[PubChem].

Medicinal name:
  • Finasteride 5 MG Oral Tablet [Proscar]

Proscar - Pharmacology:

The mechanism of action of Proscar is based on its preferential inhibition of Type II 5a-reductase, an intracellular enzyme that converts the androgen testosterone into DHT. Inhibition of Type II 5a-reductase blocks the peripheral conversion of testosterone to DHT, resulting in significant decreases in serum and tissue DHT concentrations.

Proscar mini report

Proscar NDA
NDA - A product marketed under an approved New Drug Application
Proscar TABLET, FILM COATED
TABLET, FILM COATED
Proscar HUMAN PRESCRIPTION DRUG
HUMAN PRESCRIPTION DRUG
Start - Stop data
START DATA:
1992-Jun-19
Start - Stop data
STOP DATA
not occurred

Proscar Interactions

No drug interactions of clinical importance have been identified. Proscar does not appear to affect the cytochrome P450-linked drug-metabolizing enzyme system. Compounds that have been tested in man include antipyrine, digoxin, propranolol, theophylline, and warfarin and no clinically meaningful interactions were found.

Other concomitant therapy

Although specific interaction studies were not performed, finasteride doses of 1 mg or more were concomitantly used in clinical studies with acetaminophen, acetylsalicylic acid, a-blockers, analgesics, angiotensin-converting enzyme (ACE) inhibitors, anticonvulsants, benzodiazepines, beta blockers, calcium-channel blockers, cardiac nitrates, diuretics, H2 antagonists, HMG-CoA reductase inhibitors, prostaglandin synthetase inhibitors (also referred to as NSAIDs), and quinolone anti-infectives without evidence of clinically significant adverse interactions.

Drug/Laboratory Test Interactions

Proscar had no effect on circulating levels of cortisol, thyroid-stimulating hormone, or thyroxine, nor did it affect the plasma lipid profile (e.g., total cholesterol, low-density lipoproteins, high-density lipoproteins and triglycerides) or bone mineral density. In studies with finasteride, no clinically meaningful changes in luteinizing hormone (LH), follicle-stimulating hormone (FSH) or prolactin were detected. In healthy volunteers, treatment with finasteride did not alter the response of LH and FSH to gonadotropin-releasing hormone indicating that the hypothalamic-pituitary-testicular axis was not affected.

In clinical studies with PROPECIA (finasteride, 1 mg) in men 18-41 years of age, the mean value of serum prostate-specific antigen (PSA) decreased from 0.7 ng/mL at baseline to 0.5 ng/mL at Month 12. Further, in clinical studies with PROSCAR (finasteride, 5 mg) when used in older men who have benign prostatic hyperplasia (BPH), PSA levels are decreased by approximately 50%. These findings should be taken into account for proper interpretation of serum PSA when evaluating men treated with finasteride.

Proscar Contraindications

PROPECIA is contraindicated in the following:

Pregnancy. Proscar use is contraindicated in women when they are or may potentially be pregnant. Because of the ability of Type II 5-reductase inhibitors to inhibit the conversion of testosterone to DHT, finasteride may cause abnormalities of the external genitalia of a male fetus of a pregnant woman who receives finasteride. If this drug is used during pregnancy, or if pregnancy occurs while taking this drug, the pregnant woman should be apprised of the potential hazard to the male fetus. In female rats, low doses of finasteride administered during pregnancy have produced abnormalities of the external genitalia in male offspring.

Hypersensitivity to any component of this medication.

Manufacturers name:

  • Merck Sharp & Dohme Corp

Generic name, Overdose, Half Life Proscar, Food Interactions, Chemical, etc..

Proscar see also FDA report Saw Palmetto

Men's Health
Brand Names containing Finasteride