Health encyclopaedia - Alphabetical Topic List
| | A | | | B | | | C | | | D | | | E | | | F | | | G | | | H | | | I | | | J | | | K | | | L | | | M | |
| | N | | | O | | | P | | | Q | | | R | | | S | | | T | | | U | | | V | | | W | | | X | | | Y | |
Disadvantages of Emergency contraception
Emergency pills become less effective the later they are taken. They may fail completely if taken over 72 hours after unprotected sex.
Emergency pills can occasionally cause nausea or sickness, and if vomiting occurs the pills may not work. If this happens, more pills may be prescribed by a doctor or the copper IUD may be fitted.
Neither emergency pills nor IUDs protect against sexually transmitted diseases.









