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प्रश्न
Discuss the mode of action and advantages/disadvantages of hormonal contraceptives.
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उत्तर
- Oral administration of small doses of either progestagens or progestogen-estrogen combinations is another contraceptive method used by the females.
- Most important component of oral contraceptive is progesterone. They are used in the form of tablets and hence are popularly called the pills. Pills have to be taken daily for a period of 21 days starting preferably within the first 5 days of menstrual cycle. After a gap of 7 days (during which menstruation occurs) it has to be repeated in the same pattern.
- Oral contraceptive pills inhibit ovulation and implantation as well as alter (change) the quality of cervical mucus to prevent or retard entry of sperms. Progesterone present in OCP- is meant for checking ovulation. Pills are very effective with lesser side effects and are well accepted by the females. Combination or IUDs within 72 hours of coitus have been found to be very effective as emergency contraceptives as they could be used to avoid possible pregnancy due to rape or casual unprotected intercourse.
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संबंधित प्रश्न
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- It is almost irreversible
- Of the misconception that it will reduce sexual urge/drive
- It is a surgical procedure
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- They are introduced into the uterus
- They are placed to cover the cervical region
- They act as physical barriers for sperm entry
- They act as spermicidal agents
Copper ions-releasing IUDs are more efficient than non-medicated methods. Why?
Given below are four contraceptive methods and their modes of action. Select the correct match:
| Method | Mode of action |
| a) Condom | (i) Ovum not able to reach Fallopian tube |
| b) Vasectomy | (ii) Prevents ovulation |
| c) Pill | (iii) Prevents sperm reaching the cervix |
| d) Tubectomy | (iv) Semen contains no sperms |
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| Column 'A' | Column 'B' | ||
| 1 | Mechanical means | a | Saheli |
| 2 | Physiological device | b | Jellies |
| 3 | Chemical device | c | Vasectomy |
| 4 | Permanent method | d | Diaphragm |
