Viagra is the drug that keeps on giving.
Originally tested to help heart conditions, Viagra was found to have some interesting side effects and is now commonly used in erectile dysfunction.
And now the drug is being trialled to reduce foetal distress during birth! The drug helps improve blood flow to the pelvis, bringing oxygenated blood to the baby and hopefully reducing the need for emergency C sections.
http://www.abc.net.au/news/2018-07-03/viagra-being-trialled-on-women-during-childbirth/9934380