Many women would like to either partly or completely dispense with their monthly menstruation and its accompanying attributes. Taking oral hormonal contraceptives (OC) is possible. However, currently no OC preparation is authorized specifically for this indication in Germany. In their daily work, gynecologists are often confronted with questions about this topic: Which preparation can be recommended? What are the results of tolerance tests? What are the effects on existing illnesses, e.g. endometriosis, ovarian cysts, epilepsy? The new gynecological handbook covers active ingredients recommended for long cycles, provides dosage tables for their consumption, summarizes the results of scientific research on long-cycle contraception and deals with special issues and recommendations involving existing illnesses. This booklet provides gynecologists with a reliable guide to the subject, giving them assurance in prescribing preparations, and in monitoring and handling their patients.