34 citations,
February 1992 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride and minoxidil together promote hair growth better than either alone.
34 citations,
January 1989 in “Toxicologic Pathology” A study found that minoxidil can damage the hearts of dogs and pigs, cautioning its use in humans.
34 citations,
September 1985 in “Contact Dermatitis” Minoxidil can cause skin irritation like eczema and rash in some users.
34 citations,
May 2017 in “Lasers in Surgery and Medicine” Combining low-level light therapy and minoxidil 5% is more effective for female hair loss than using either treatment alone.
34 citations,
November 1987 in “Archives of Dermatology” Oral minoxidil helps hair regrowth in 80% of alopecia patients, but only 18% see cosmetic improvement.
34 citations,
January 1987 in “Dermatology” Topical minoxidil effectively and safely treats extensive alopecia areata but doesn't change its course.
33 citations,
June 1995 in “Journal of Pharmaceutical Sciences” More ethanol increases minoxidil delivery, but too much lowers efficiency.
33 citations,
May 1991 in “British Journal of Pharmacology” Cromakalim relaxes various blood vessels, while minoxidil sulphate is more selective; they likely act on different potassium channels.
33 citations,
November 1994 in “Archives of Biochemistry and Biophysics” 
33 citations,
July 1992 in “Journal of Investigative Dermatology” Minoxidil doesn't affect perifollicular lymphoid infiltration in alopecia areata patients.