Eight Years' Expeience with Oral Contraception and an Analysis of Use of Low-dosage Norethisterone

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Abstract
A brief review of 8 years'' study of oral contraception is given. Reference is made to detailed blood-studies carried out on patients using various preparations, and a discussion of certain of the findings is presented. In general, while some chemical factors were altered, it is very possible that these are not evidence of a pathological change, but, rather, may be attributable to the pseudopregnancy state. These studies are being continued and expanded. An analysis of over 3 years'' study of the 2-mg norethisterone product is also presented. In 6,455 cycles of use by 435 patients side-effects were minimal and there were no pregnancies.