This was a multicentre general practitioner study using a new low dose oral contraceptive, Ovamin 30 (ethinyloestradiol 30 μg, ethynodiol diacetate 2 mg). Results showed a pregnancy rate calculated as a Pearl Index of 0.4. An analysis of bleeding patterns showed consistently acceptable cycle control. From these results it would appear that Ovamin 30 is an effective and well tolerated low dose oral contraceptive preparation.
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