BiNovum contraceptive pills. Oral contraceptive pills used for birth control. Dates are present on the packs of 14 pills (plus 7 placebo pills to take at the end of the cycle) to ensure that the correct daily dose is taken. The contraceptive pill contains one or more synthetic female sex hormones. Most contraceptive pills consist of progesterone & oestrogen. Progesterone acts on the pituitary gland affecting the menstrual cycle; oestrogen blocks the monthly release of a mature egg (ovulation). The unwanted pregnancy rate is less than 1 per 100 woman years. Side effects from using the pill include headache,weight gain,nausea & higher risks of cervical cancer | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Hart-Davis, Adam |
Taille de l’image : | 5055 px × 3479 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |