Case report.
In聽vitro fertilization unit of a public hospital.
Thirty-one-year-old nulliparous woman, and 39-year-old male with retrograde ejaculation and absolute asthenozoospermia.
Retrieval of postejaculatory urine, restoration of motility using a methylxanthine, intracytoplasmic sperm injection, single-embryo transfer.
Sperm motility, fertilization, embryo quality, live birth.
Successful fertilization and a single-embryo transfer resulted in a healthy live birth.
Theophylline turned out to be a safe, efficient agent for stimulating immotile spermatozoa in patients with retrograde ejaculation.