Hair Loss Drug

The information on this site is intended for healthcare professionals in the United States and is not intended for the general public.

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MERCK
PROPECIA® (finasteride) 1mg This site is intended only for healthcare professionals of the United States,
its territories, and Puerto Rico. Non-US residents click here
PROPECIA Packaging
Home Prescribing Information Patient Product Information Patient Website
Product Data and Highlights
Highlights of Clinical Studies
Clinical Hair Count Results
Photographic Assessment
Patient Self-Assessment
Investigator Assessment
Hair Weight Results
Selected Safety Information
How PROPECIA Works
Study Design
Prescribing PROPECIA
Resources
5-Year Data
See the results of the longest reported controlled clinical study of male pattern hair loss.
View study results.
 
Selected Safety Information—Not an Antiandrogen
 
 Selected Safety Information  Not an Antiandrogen  Discontinuation Rates
Clinical studies showed:
Effect on the plasma lipid profile NO
Negative effect on bone mineral density NO
Blocking of or binding to the androgen receptor NO
Androgenic, antiandrogenic, estrogenic, antiestrogenic,
or progestational effects
NO
Clinically meaningful changes in luteinizing hormone or follicle-stimulating hormone NO
Effect on the hypothalamic-pituitary-testicular axis NO
Clinical studies showed men treated with PROPECIA® (finasteride) had increased mean testosterone and estradiol levels (approximately 15%), but these levels were within normal physiologic range.

Important Information About PROPECIA

  • Caution should be used in patients with liver function abnormalities, as finasteride is metabolized extensively in the liver.
  • Physicians should instruct their patients to promptly report any changes in their breasts such as lumps, pain, or nipple discharge. Breast changes including breast enlargement, tenderness, and neoplasm have been reported.
  • In clinical studies with finasteride 1 mg in men aged 18 to 41, 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. 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.
  • No drug interactions of clinical importance have been identified.
    —  Compounds that have been tested in men include antipyrine, digoxin, propranolol, theophylline, and warfarin, and no clinically meaningful interactions were found.
 Selected Safety Information  Not an Antiandrogen  Discontinuation Rates

 


    * PROSCAR is a registered trademark of Merck & Co., Inc.

PROPECIA is a registered trademark of Merck & Co., Inc.
20753248(2)-12/07–PRP