Finasteride Induced Cerebral Venous Thrombosis

August 2015 in “ Journal of the Korean neurological association ”

Dong-Hyun Kang, Han-Gil Jeong, Hang-Rai Kim, Chan Beum Park, Jung Min Pyun, Yeon Sook Kim, Seung Hwan Lee

finasteride cerebral venous thrombosis estrone estradiol blood clot benign prostate hyperplasia hair loss dabigatran Propecia CVT BPH

TLDR A man had a rare stroke possibly due to taking finasteride, which might have increased his hormone levels causing a blood clot. His memory loss didn't fully recover even after stopping the medication.

In 2015, a 46-year-old man developed cerebral venous thrombosis (CVT), a rare form of stroke, after taking 5 mg of finasteride daily for two years for benign prostate hyperplasia, and an additional 1 mg daily for hair loss for one year. The finasteride was suspected to have increased the patient's levels of estrone and estradiol, potentially leading to a blood clot. After discontinuing finasteride and starting on dabigatran 110 mg bid, the patient's symptoms did not worsen, but his short-term memory loss had not fully recovered three months after discharge. The authors called for more research to establish a causal relationship between finasteride use and blood clot formation.

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Research cited in this study

2 / 2 results

research Two Cases of Stroke Associated with the Use of Finasteride, an Approved Drug for Male-Pattern Hair Loss in Japan

7 citations, January 2014 in “Rinshō shinkeigaku”

Finasteride, a hair loss medication, may be linked to stroke in young men.

research Finasteride-Induced Gynecomastia in a 62-Year-Old Man

15 citations, June 1995 in “The American Journal of the Medical Sciences”

Finasteride caused enlarged breast tissue in a 62-year-old man.

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