This means any testosterone product manufactured with an unchangeable dose of testosterone — like testosterone patches — could be detrimental to you. (tctmed.com)
Low testosterone or estrogen is also commonly linked to sex drive problems; postmenopausal women may be prescribed topical estrogen (or sometimes oral estrogen); older men with low levels may be treated with testosterone patches or shots. (health.com)
A testosterone patch developed for women was rejected by the US Food and Drug Administration in 2004 because it had little impact on sexual desire, and carried potential cardiovascular risks (newscientist.com)