Contraception: Your Questions Answered av John (Emeritus Professor of Family Planning and Reproductive Health University College London UK Guillebaud,

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<p>This seventh edition has been completely revised and updated, incorporating relevant WHO and national guidance documents: therefore imparting best evidence-based practice for all methods. </p><ul><p><li>Combined oral contraceptives (COCs) Based on the long-established evidence that 7 days of routinely not-taking pills in each cycle is too long for maintained ovarian suppression - and this necessarily leads to too little margin for errors in pill-taking - the authors recommend that providers switch to a new <i>norm for all users</i> of either:</li><ul><p><li>Tricycling, the 84/4 regimen, or totally continuous use (365/365), </li><p><li>OR, for women who remain keen to see monthly pill-bleeds (which are completely unnecessary for health), one of the regimens (24/4 or 21/4) that shorten the contraception-non-taking time to 4 days</li></ul><p><li>New methods, and their importance or otherwise:</li><ul><p><li>Intrauterine system: Jaydess<b>¿</b></li><p><li>Subcutaneous, self-injectable a