Notes for: ContraceptivesLast edited [26/03/2014 14:38:37]Drug Safety Update Feb'14 advice
Notes for: Oral Progestogen-only ContraceptivesLast edited [04/07/2012 09:05:20]
1. Oral progestogen-only preparations may offer a suitable alternative when oestrogens are contra-indicated (including those patients with venous thrombosis or a past history or predisposition to venous thrombosis), but have a higher failure rate than combined preparations. Women may be advised that if used consistently and correctly all progestogen-only pills are more than 99% effective. They are suitable for older women, for heavy smokers, and for those with hypertension, valvular heart disease, diabetes mellitus, and migraine.
2. POPs may also be indicated during lactation. They may be started 21 days after the birth of the child with no additional precautions.
3. If a women is experiencing bleeding problems or "minor" side-effects such as breast discomfort and acne an alternative progestogen may be tried as side-effects appear to depend on target-organ sensitivity.
4. The primary mode of action of the desogestrel-only pill is inhibition of ovulation and in this respect it resembles the combined pill. Cerazette® is more expensive than other POPs but has a 12 hour window if forgotten. It is suitable where there are issues of compliance with other POPs or effective oral contraception is desired but oral estrogen is unsuitable.