"THE PILLS"
The combined oral contraceptive pill often referred as the birth control pill or simply the pill is a combination of an estrogen and a progestin taken by mouth to inhibit normal female fertility.
Oral contraceptive pills-"THE PILLS"
Many famous names such as Margaret sanger, Frank Coton, Carl Djerassi , Russel E Marker is associated with “THE PILLS”. The decade of 1930s are called the decade of the sex hormones, during this period the structure of the sex hormones were identified and for the first time were put for use as drugs. But the cost of therapy was huge. Russell E Marker the professor at the Pennsylvania state University proposed a degradation reaction using sarsapogenin a plant hormone which resulted in a product the mimicked the structure of progesterone. This marked the beginning of the Mexican hormone industry in 1940s .The Mexican hormone industry produced hormones at a very low cost making the hormone therapy affordable.
Structure found by Rusell E Marker
Carl Djerassi is called the father of pills ,he produced the first combined oral contraceptive pill which was a combination of norethynodrel and mestranol and was given the proprietary name Enovid.His discovery was serendipitous, Norethynodrel was subsequently discovered to be contaminated with estrogen Mestranol an intermediate in their synthesis. This combination proved to be very effective as contraceptives during the first contraceptive trials in women in 1956.
Carl Djerassi- "Father of pills"
The combined oral contraceptive pills became available to the general public between 1950- 1960s. In America the pill were available under the brand name Enovoid in July, 1961. In Canada combined oral contraceptive, as well as many other methods of birth control, was legalized in 1969.the most popular brand in Canada is Alesse. In Australia the combined oral contraceptive pills became available on January 1, 1961 under the brand name of Schering’s Anovlar. In Europe oral contraceptive pill were introduced for the first time in West Germany under the brand name Schering’s Anovlar. In Britain the pills entered the market on December 4, 1961, under the brand name Conovoid, later on in 1962 Schering’s Anovlar and Searle’s Conovoid –E were also available. In France the oral contraceptive pills were legalized in December 28, 1967.Since then it have been extensively used and accounts for 60% of the birth control. Surprisingly, when the whole of the world was extensively using the oral contraceptive pill Japan remained aloof. The Japan Medical Association did not approve the oral contraceptive pills for around 40 years from the time of its discovery. Two main objections raised by the association were safety concerns over the long term use of the pill and secondly the use of pills would lead to diminish use of condoms and thereby potentially increase sexually transmitted infection rates. However the pill was approved for use in September 1999, with the prescription guidelines that the pill users must visit a doctor every month’s for pelvic examinations and undergo test for sexually transmitted diseases unlike United states and Europe where an annual or bi-annual clinic visit is standard for pill prescribers.
"THE PILLS"- Schering's Anovlar
They are currently used by more than 100 million women worldwide and by almost 12 million women in the United States. Usage Varies widely by country, age, education, and the marital status: one quarter of women aged 16-49 in Great Britain currently use the pill compared to only 1% of women in Japan.
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kranthikumar
Mon, 04/27/2009 - 06:49
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Does not it effect normal cycles...
Dear Zarrin faria,
You have mentioned "the pill is a combination of an estrogen and a progestin taken by mouth to inhibit normal female fertility." can you explaine the mechanism shortly because as i know this two hormones are essential for fertility as well.
Over use of this pills will not effect the normal cycle ??
Disadvantages associated with this ??
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Kranthi
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sai
Mon, 04/27/2009 - 22:58
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Kranthi
Kranthi,
I really appreciate the way you read others blogs and encourage other people with your questions. It would be more appropriate if you ask related questions to the topic . I guess here the goal of the blog is "history" than physiology. More appropriate question would be ...When the birth control pills started in India and what was the first brand name in India.
Thanks in advance for understanding
kranthikumar
Tue, 04/28/2009 - 15:14
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Yes, sir i agree... but
Dear sir,
I agree with you, but i being a great lover of physciology
could not resist myself from being asking questions like this.
Anyway from this on i will try my level best to resist asking questions out of the blog.
Thanks for your valuable suggestion..
Regards
Kranthi
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zarrinfaria
Tue, 04/28/2009 - 14:09
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Dear Kranthi, Here is the
Dear Kranthi,
Here is the mechanism of action of the oral contraceptive pills......
Combined oral contraceptive pills were developed to prevent ovulation by suppressing the release of gonadotropins. Combined hormonal contraceptives, including COCPs, inhibit follicular development and prevent ovulation as their primary mechanism of action.
Progestagen negative feedback decreases the pulse frequency of gonadotropin-releasing hormone (GnRH) release by the hypothalamus, which decreases the release of follicle-stimulating hormone (FSH) and greatly decreases the release of luteinizing hormone (LH) by the anterior pituitary. Decreased levels of FSH inhibit follicular development, preventing an increase in estradiol levels. Progestagen negative feedback and the lack of estrogen positive feedback on LH release prevent a mid-cycle LH surge. Inhibition of follicular development and the absence of a LH surge prevent ovulation.
Estrogen was originally included in oral contraceptives for better cycle control (to stabilize the endometrium and thereby reduce the incidence of breakthrough bleeding), but was also found to inhibit follicular development and help prevent ovulation. Estrogen negative feedback on the anterior pituitary greatly decreases the release of FSH, which inhibits follicular development and helps prevent ovulation.
A secondary mechanism of action of all progestagen-containing contraceptives is inhibition of sperm penetration through the cervix into the upper genital tract (uterus and fallopian tubes) by decreasing the amount of and increasing the viscosity of the cervical mucus.
Other secondary mechanisms have been hypothesized. One example is endometrial effects that prevent implantation of an embryo in the uterus. Some pro-life groups consider such a mechanism to be abortifacient, and the existence of postfertilization mechanisms is a controversial topic. Some scientists point out that the possibility of fertilization during COCP use is very small. From this, they conclude that endometrial changes are unlikely to play an important role, if any, in the observed effectiveness of COCPs. Others make more complex arguments against the existence of these mechanisms ,while yet other scientists argue the existing data supports such mechanisms.The controversy is currently unresolved
Side effects:
Breakthrough bleeding,amnorrhea,weight gain,depression,may affect the women sexuality positively or negatively,reduction in mestrual flow nausea ,vomiting are some of the side effects and the disadvantages of the oral contraceptive pills....
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Faria Zarrin
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kranthikumar
Tue, 04/28/2009 - 15:20
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Thank you,
wow that is good explaination thank you.
Regards
Kranthi
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ks kumar upadhyayula
Thu, 05/07/2009 - 04:55
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Is it required
Why do they mention day of administration on each pill,is it necessary that you have to administer the same on the specified day
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zarrinfaria
Fri, 05/08/2009 - 18:48
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It is done to guarantee and
It is done to guarantee and emphasize patient complaine...one should be regular in taking pill...must not miss pill for the contraceptive action..hence the days are mentioned....
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Faria Zarrin
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