Forendo Pharma Oy has presented aldo-keto reductase family 1 member C3 (AKR1C3) and/or prostaglandin F2-α synthase inhibitors reported to be useful for the treatment of acne, cancer, alopecia, obesity, chronic obstructive pulmonary disease, dysmenorrhea, endometriosis and polycystic ovary syndrome, among others.