1. A method of reducing the rate of cervical dilatation, comprising administering to pregnant women a pharmaceutical composition comprising pharmaceutically active relaxin H2. ! 2. The method according to claim 1, in which the pregnant woman experiences symptoms selected from the group consisting of early contractions, cramps in the lower abdomen, dull lower back pain, pressure in the pelvic region, stomach cramps, vaginal discharge, vaginal bleeding, and vaginal discharge of aqueous humor. ! 3. The method according to claim 1, in which relaxin is administered in an amount in the range of values from about 0.1 to 500 μg / kg of body weight of the subject. ! 4. The method according to claim 3, in which relaxin is administered in an amount to maintain a concentration of relaxin in serum from about 0.5 to 50 ng / ml. ! 5. The method according to claim 1, in which relaxin is administered at the beginning of the first trimester of pregnancy. ! 6. The method according to claim 1, in which relaxin is administered at the beginning of the second trimester of pregnancy. ! 7. The method according to claim 1, in which relaxin is administered at the beginning of the third trimester of pregnancy. ! 8. A method of reducing the risk of preterm delivery, comprising administering to a pregnant woman a pharmaceutical composition comprising pharmaceutically active relaxin H2. ! 9. The method of claim 8, in which the pregnant woman experiences symptoms selected from the group consisting of early contractions, cramping in the lower abdomen, dull lower back pain, pressure in the pelvic region, stomach cramps, vaginal discharge, vaginal bleeding, and vaginal discharge of aqueous humor. ! 10. The method according to claim 9, in which relaxin is administered in an amount in the range of values from about 0.1 to 500 μg / kg of body weight of the subject. ! 11. The method of claim 10, in which relaxin1. Способ снижения скорости раскрытия шейки матки, включающий введение беременным женщинам фар
