The contraceptive implant

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The contraceptive implant is a contraceptive method in the form of flexible rod that is placed under the skin of the inner side of the arm.

The implant releases progestogens continuously and is designed to be used for a long time, without the need to change it, maintaining a 99% effectiveness.

Below you have an index with all the points that we will discuss in this article.

Index

The contraceptive implant

Depending on the product, it will have a contraceptive effect for 3 or 5 years. Once this time has elapsed it is necessary to remove it, since the effectiveness decreases and the woman can become pregnant.

Subdermal contraceptive implant

This method has the advantage of being able to be placed after the sixth week postpartum and has no affect on breastfeeding.

How does the implant work?

The implant has its contraceptive effect thanks to the slow release progestogens, which inhibit the action of the gonadotropins that control the menstrual cycle. This causes:

  • The inhibition of ovulation.
  • The inhibition of endometrial growth, preventing it from reaching the proper thickness for implantation.
  • The reduction of the mobility of the Fallopian tubes, making difficult the passage of the spermatozoa towards the ovum and of the embryo towards the uterus.
  • The modification of the cervical mucus, making it thicker to prevent the passage of sperm.

These effects are reversible. To recover female fertility it is necessary to remove the contraceptive implant and this is achieved in a short time.



Indications and contraindications

This contraceptive method is indicated for women of reproductive age who desire continuous contraception. Those who do not tolerate the adverse effects of oral contraceptives, who have contraindicated the use of the IUD or those who have difficulties remembering the taking of pills or the placement of contraceptives such as monthly rings or patches, can benefit especially.

However, it should not be used by women who suspect that they may be pregnant or have confirmation of pregnancy, when undiagnosed vaginal bleeding appears or in case of allergy to the active substance of the medication.

If the woman has active venous thromboembolism, heart attacks, strokes, liver disease, migraines, headaches, sudden vomiting, dizziness, vision or speech disorders, breast cancer, endometrial cancer or progestin-dependent tumors, neither should this contraceptive be used.

Types of contraceptive implant

Currently there are two forms of contraceptive implant:

  • Implanon: a single rod that can be used for 3 years from its placement. Its active substance is etonogestrel.
  • Jadelle: two rods that can be used for 5 years since their placement. Its active substance is levonorgestrel.

With Implanon, the hormonal levels begin to increase from their placement, reaching their maximum at 11-13 days and normalizing during the first year of use. With Jadelle, however, the continued release of low doses of the hormone occurs immediately after insertion.

Implanon contraceptive implant placement

Therefore, the Implanon is effective as of 24 hours from its placement, while Jadelle is effective from its placement.

Side effects

The most common side effects are alterations in bleeding, irregular bleeding may appear, prolonged and / or abundant, prolonged and / or irregular spotting and amenorrhea (absence of menstruation). Intermenstrual bleedings can also occur, that is, between periods.

The headaches and breasts, acne, increased hair, dizziness and nausea are symptoms that also tend to occur due to the use of the implant.


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