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Introducing the basic principles upon which all chemical methods of contraception work, and how the methods of delivery vary.Key facts
- There are many chemical methods designed to prevent pregnancy.
- Chemical contraceptives use artificial hormones to manipulate a woman's menstruation cycle.
- The combined oral pill contains estrogen and progesterone, which prevents ovulation and is 99% effective.
- The progesterone-only pill can be slightly less effective than the combined pill, but has lower risk of side effects.
Transcript
The pill, the mini pill, injections, implants, patches and intrauterine systems, or IUSs.
All methods of introducing chemicals to the body designed to prevent pregnancy.
Normally, hormones released in the brain and the ovaries, control the female menstrual cycle – triggering the monthly release of an egg, ovulation, and producing the conditions ...
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