TLDR Minoxidil, a blood pressure drug, can cause excessive hair growth, but this can be successfully treated with a hair removal agent called calcium thioglycolate.
In 1977, a study was conducted on the side effects of Minoxidil, an antihypertensive drug, which was found to cause hypertrichosis, an excessive hair growth, particularly in women. This side effect was treated successfully in five female patients using a calcium thioglycolate depilatory agent, which is used for hair removal.
4 citations,
January 2017 in “Indian Dermatology Online Journal” A child used a hair growth lotion for hair loss, but it caused excessive hair growth on his face and neck instead.
10 citations,
February 2016 in “Anais Brasileiros de Dermatologia” Topical minoxidil can cause excessive hair growth in children, so use it carefully.
5 citations,
March 2013 in “Journal of cosmetic and laser therapy” Laser treatment successfully removed unwanted facial hair caused by minoxidil.
March 2005 in “Journal of The American Academy of Dermatology” Two cosmetic lotions improved hair growth and had better cosmetic effects than 2% minoxidil.
20 citations,
March 1994 in “Clinical and Experimental Dermatology” Too much topical minoxidil can cause excessive hair growth, but stopping treatment reverses it.
26 citations,
April 1977 in “PubMed” Minoxidil, a blood pressure drug, can cause excessive hair growth, but this can be successfully treated with a hair removal agent called calcium thioglycolate.