|
Combined pill |
Mini-pill |
Contraceptive ring |
Contraceptive patch |
Emergency Contraception |
|
 |
 |
 |
 |
 |
Effectiveness |
Over 99% |
98 to over 99% |
Over 99% |
Over 99% |
Between 58% and 98% |
Action |
Once daily for 21 days; 7-day break |
Once daily for 28 days; no break |
Once daily for 21 days; 7-day break |
Once a week for 3 weeks, 7-day break |
Once within 3-5 days of unprotected sex |
Hormones |
Oestrogen and progestogen |
Progestogen |
Oestrogen and progestogen |
Progestogen |
Progestogen |
How it works |
Prevents ovulation, thickens cervical mucus and alters the womb lining |
Thickens cervical mucus and alters the womb lining |
Prevents ovulation, thickens cervical mucus and alters the womb lining |
Thickens cervical mucus and alters the womb lining |
Prevents ovulation, thickens cervical mucus and alters the womb lining |
Main benefit |
Daily contraceptive, regulates menstrual cycle, helps alleviate PMS symptoms |
Daily contraceptive, regulates menstrual cycle, helps alleviate PMS symptoms |
Daily contraceptive, regulates menstrual cycle, helps alleviate PMS symptoms |
Weekly contraceptive, regulates menstrual cycle, helps alleviate PMS symptoms |
Can be used in the event of contraceptive failure |
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