Question:

How long do you have to wait for the Depo Provera medicine to kick in?

Answer:

The contraceptive effect of the injection lasts for three months. The first injection should be given in the first five days of a normal menstrual cycle (day one is the first day of your period). This will protect you from pregnancy immediately.

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Provera Medicine
Human reproduction

Human reproduction is any form of sexual reproduction resulting in the conception of a child, typically involving sexual intercourse between a man and a woman. During sexual intercourse, the interaction between the male and female reproductive systems results in fertilization of the woman's ovum by the man's sperm, which after a gestation period is followed by childbirth. The fertilization of the ovum may nowadays be achieved by artificial insemination methods, which do not involve sexual intercourse.


Menstrual cycle

Menstrual cycle is the cycle of changes that occurs in the uterus and ovary for the purpose of sexual reproduction. It is essential for the production of eggs and for the preparation of the uterus for pregnancy. The menstrual cycle occurs only in fertile female humans and other female primates.

In humans, the length of a menstrual cycle varies greatly among women (ranging from 25 to 35 days), with 28 days designated as the average length. Each cycle can be divided into three phases based on events in the ovary (ovarian cycle) or in the uterus (uterine cycle). The ovarian cycle consists of the follicular phase, ovulation, and luteal phase whereas the uterine cycle is divided into menstruation, proliferative phase, and secretory phase. Both cycles are controlled by the endocrine system and the normal hormonal changes that occur can be interfered with using hormonal contraception to prevent reproduction.

Reproduction
Medroxyprogesterone 17-acetate

Medroxyprogesterone acetate (INN, USAN, BAN), also known as 17α-hydroxy-6α-methylprogesterone acetate, and commonly abbreviated as MPA, is a steroidal progestin, a synthetic variant of the human hormone progesterone. It is used as a contraceptive, in hormone replacement therapy and for the treatment of endometriosis as well as several other indications.

MPA is a more potent derivative of its parent compound medroxyprogesterone (MP). While medroxyprogesterone is sometimes used as a synonym for medroxyprogesterone acetate, what is normally being administered is MPA and not MP.

Pregnancy

Combined injectable contraceptive (CIC) monthly injection of progesterone and estradiol taken to inhibit fertility. Brand names include Cyclofem, Novafem, Mesigyna, Lunelle and Cyclo-Provera.

DMPA is a different injectable contraceptive, containing just a progestin, given every three months.

Hormonal contraception refers to birth control methods that act on the endocrine system. Almost all methods are composed of steroid hormones, although in India one selective estrogen receptor modulator is marketed as a contraceptive. The original hormonal method—the combined oral contraceptive pill—was first marketed as a contraceptive in 1960. In the ensuing decades many other delivery methods have been developed, although the oral and injectable methods are by far the most popular. Altogether, 18% of the world's contraceptive users rely on hormonal methods. Hormonal contraception is highly effective: when taken on the prescribed schedule, users of steroid hormone methods experience pregnancy rates of less than 1% per year. Perfect-use pregnancy rates for most hormonal contraceptives are usually around the 0.3% rate or less. Currently available methods can only be used by women; the development of a male hormonal contraceptive is an active research area.

There are two main types of hormonal contraceptive formulations: combined methods which contain both an estrogen and a progestin, and progestogen-only methods which contain only progesterone or one of its synthetic analogues (progestins). Combined methods work by suppressing ovulation and thickening cervical mucus; while progestogen-only methods reduce the frequency of ovulation, most of them rely more heavily on changes in cervical mucus. The incidence of certain side effects is different for the different formulations: for example, breakthrough bleeding is much more common with progestogen-only methods. Certain serious complications occasionally caused by estrogen-containing contraceptives are not believed to be caused by progestogen-only formulations: deep vein thrombosis is one example of this.

Depo-Provera Pfizer Health Medical Pharma
Depo Provera

Depo-Provera is a branded progestogen-only contraceptive, depot medroxyprogesterone acetate (DMPA) long acting reversible hormonal contraceptive birth control drug that is injected every 3 months. It is an aqueous suspension for depot injection of the pregnane 17α-hydroxyprogesterone-derivative progestin medroxyprogesterone acetate. It is also used for chemical castration.

Depo-Provera is the brand name for a 150 mg aqueous injection of DMPA depot medroxyprogesterone acetate. It is applied in the form of an intramuscular injection. The shot must be injected into the thigh or buttocks or deltoid four times a year (every 11 to 13 weeks) and provides pregnancy protection instantaneously after the first injection. It was approved in the United States by the FDA for contraceptive use on 29 October 1992, and for management of endometriosis-related pain on 25 March 2005. Depo-subQ Provera 104, also manufactured by Pfizer, is a variation of the original Depo Shot that is instead a 104 mg subcutaneous injection. It contains 69 percent of progestin found in the original Depo-Provera shot. This can be injected using a smaller injection needle inserting the hormone just below the skin, instead of into the muscle, in either the abdomen or thigh. This subcutaneous injection claims to reduce the side effects of the progestin while still maintaining all the same benefits of the original Depo shot.


menstrual cycle

Menstrual cycle is the cycle of changes that occurs in the uterus and ovary for the purpose of sexual reproduction. It is essential for the production of eggs and for the preparation of the uterus for pregnancy. The menstrual cycle occurs only in fertile female humans and other female primates.

Chemical castration is the administration of medication designed to reduce libido and sexual activity. Unlike surgical castration, where the testicles or ovaries are removed through an incision in the body, chemical castration does not actually castrate the person, nor is it a form of sterilization.

Depo-Provera is a branded progestogen-only contraceptive, depot medroxyprogesterone acetate (DMPA) long acting reversible hormonal contraceptive birth control drug that is injected every 3 months. It is an aqueous suspension for depot injection of the pregnane 17α-hydroxyprogesterone-derivative progestin medroxyprogesterone acetate.

130,000 (2011)
1.75% of the Israeli population
Central 35.6% • South 25% • Haifa 18.8%

A menstrual taboo is any social taboo concerned with menstruation. In some societies it involves menstruation being perceived as unclean or embarrassing, extending even to the mention of menstruation both in public (in the media and advertising) and in private (amongst friends, in the household, and with men). Many traditional religions consider menstruation ritually unclean.


Menstrual cycle

Menstrual cycle is the cycle of changes that occurs in the uterus and ovary for the purpose of sexual reproduction. It is essential for the production of eggs and for the preparation of the uterus for pregnancy. The menstrual cycle occurs only in fertile female humans and other female primates.

In humans, the length of a menstrual cycle varies greatly among women (ranging from 25 to 35 days), with 28 days designated as the average length. Each cycle can be divided into three phases based on events in the ovary (ovarian cycle) or in the uterus (uterine cycle). The ovarian cycle consists of the follicular phase, ovulation, and luteal phase whereas the uterine cycle is divided into menstruation, proliferative phase, and secretory phase. Both cycles are controlled by the endocrine system and the normal hormonal changes that occur can be interfered with using hormonal contraception to prevent reproduction.

Menstruation is the periodic discharge of blood and mucosal tissue (the endometrium) from the uterus and vagina. It starts at menarche at or before sexual maturity (maturation), in females of certain mammalian species, and ceases at or near menopause (commonly considered the end of a female's reproductive life). The periodicity of menstruation gives rise to commonly used euphemisms like "period" and "monthly".

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