The intrauterine system "Mirena". Instructions
"Mirena" is the intrauterine contraceptive spiral. Being a hormonal drug, it provides long-term, reversible protection from unwanted pregnancy for five years.
"Mirena", being a polymeric carrier, contains levonorgestrel in one intrauterine system. The release rate of the component is 20 μg per day.
"Mirena". Instructions. Action and properties.
The vertical part of the spiral (rod) is represented byflexible plastic cylinder. It contains the hormone levonorgestrel. The system is made in the form of the letter T. Thus, it is more consistent with the shape of the uterus. The lower end of the vertical part contains a loop. To her, threads are attached to remove the spiral.
Levonorgestrel is considered the most studiedgestagen, a hormone similar to natural progesterone. This component is used in many contraceptives. The container containing levonorgestrel is covered with a special membrane. Continuous controlled diffusion of the hormone is carried out through it. The release (release) of levonorgestrel into the uterine cavity is carried out in small amounts, evenly, at a constant rate, daily.
Contraceptive effect of the Mirena systemthe instruction explains the ability of the acting component to exert a local influence on the endometrium, preventing proliferative changes in it and lowering its implant function. In addition, the movement of spermatozoa is difficult. Endometrium is not able to reach the necessary maturity for the formation of pregnancy. Levonorgestrel increases the viscosity of cervical mucus, which in turn prevents the penetration of spermatozoa into the uterine cavity and fertilization of the egg.
The system compares the effectiveness of the Mirena system with sterilization of women, copper - containing intrauterine systems, oral contraceptives.
The effect of the active ingredient is promotedReduction of excessive volume of menstrual bleeding after the expiry of three months after the beginning of application. Clinical practice shows that the use of a spiral reduces blood loss by 88%, which prevents the development of iron deficiency anemia.
The "Mirena" spiral is used in endometriosis. It should be noted that levonorgestrel-containing hormonal contraception today has become quite widespread in the treatment of this disease.
It is used "Mirena" with myoma of the uterus. The agent also reduces the incidence of inflammation in the pelvic organs.
"Mirena". Instructions. Application.
Before the introduction of the system, if necessary, a smear or other tests that detect the presence or absence of infections, including venereal ones, may be taken.
For women of reproductive age, the use of a spiral is recommended no later than seven days after the onset of menstruation (on the first or seventh day of bleeding).
After the gynecological examination, it is necessary to treat the cervix with an antiseptic solution. With the help of a thin flexible plastic tube, a helix is introduced.
Some patients experience dizziness andpain after the installation procedure. In the event that after half an hour after the introduction (when at rest) the symptoms persist, it is likely that the spiral is incorrectly installed. In this case, a gynecological examination should be carried out. The system is removed if necessary.
Adverse reactions are characteristic for the first months of application of the system. As a rule, they are eliminated on their own and do not require treatment.
Before installing the spiral, you should consult with a specialist, identify the presence or absence of contraindications.
