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Emergency Contraceptive Dosage and Regimen

Name Component Content (mg) Tablets per Dose Number of Doses Administration Time
Levonorgestrel Tablets LNG 0.75 1 2 First dose within 72 hours after unprotected intercourse, repeat once after 12 hours
Compound Levonorgestrel Short-acting Contraceptive LNG
EE
0.015
0.03
4
 
2
 
Same as above
Quick-acting Visit Tablets Norethisterone or LNG 3
1.5
1/2
 
2
 
Same as above
Mifepristone Tablets Mifepristone 25
10
1
1
1
1
Within 120 hours after unprotected intercourse
Same as above

Explanation

Emergency contraceptive pills (morning-after pill) include steroid hormone and non-steroid hormone types. Using steroid hormone emergency contraceptives only protects against this instance of unprotected intercourse; there should be no further intercourse in this cycle unless using condoms. Generally, emergency contraceptive pills should be taken orally within 3-5 days after unprotected intercourse.

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