These pills for pregnancy 72 hours are developed by pharmacists based on the active ingredient levonorgestrel. In general, these emergency contraceptives are used more frequently. To achieve the desired result, the tablets are taken within 1-3 days after unprotected proximity.
Levonorgestrel is a synthetic progestogen derivative. Therefore, the effect of such drugs is due to the ability to inhibit the process of ovulation, as well as to immobilize spermatozoa in the female genital tract. This combination of action provides an opportunity to prevent the fertilization of the female egg.
The active substance also affects the quality of the endometrium, which significantly reduces the possibility of implantation of a fertilized egg. Emergency contraception using these drugs can slow down its progress through the tubes to the uterus, so gestagens significantly increase the risk of developing an ectopic pregnancy.
Let's give an example, taking pills is carried out already at the moment when the egg has managed to be fertilized. Under the action of these drugs, it is not able to enter the uterus for implantation, so there are conditions for attaching the egg inside the fallopian tubes. Numerous studies have proven the low probability of such an outcome.
This non-abortive method of birth control can come with various side effects:
• urticaria, rash;
• the appearance of itching;
• swelling of the face;
• nausea, vomiting, diarrhea;
• dizziness;
• increased fatigue;
• headache;
• pain in the lower abdomen;
• pain in the mammary glands;
• bleeding;
• cycle failure.
The use of gestagens is prohibited for women who have intolerance to some components of the drug and lactase, Crohn's disease, and serious liver disease. When taking pregnancy pills for a nursing woman, it is important to express milk during the day. During this period, she should not breastfeed her own baby.