Do not give further inj due to increased risk of thrombosis in case of occurrence for the 1st time of migrainous headaches or more frequent occurrence of unusually severe headaches, sudden perceptual disorders (eg, disturbances of vision or hearing), signs of thrombophlebitis or thromboembolic symptoms, chest pain & tightness, impending operations (6 wk beforehand), immobilization (for instance after accidents). Discontinue treatment if onset of jaundice, hepatitis, itching over the whole body, increase in the frequency of epileptic seizures, significant rise in BP, or pregnancy occurs. May influence conditions eg, epilepsy, migraine, asthma, & cardiac or renal dysfunction due to fluid retention. General medical & gynecological exam should be carried out before starting treatment. Clinical check-ups are recommended every 6 mth during use. Pregnancy must be excluded out.