How long do you stop injecting contraceptives?

The article was consulted professionally by Specialist Ii Pham Thi Tuyet Mai – Obstetrician and Gynecologist – Obstetrics and Gynecology Department – Share99 Hai Phong International Health Hub.

Contraceptive injections are an injectable drug containing hormones that help women contraceptives with long-term effects. The drug has a high contraceptive effect of up to 99.6%, so this is the contraceptive method chosen by many women. However, the question many women ask is how long does it take to stop the drug?

1. Learn about injectable contraceptives

Contraceptive injections are an injectable drug containing hormones that help women contraceptives with long-term effects. The mechanism of action is from releasing the hormone progestin into the body to prevent ovulation. The contraceptive drug DMPA (Dehydro Medroxy Progesterone Acetate) contains the hormone progestin dose of 150 mg.

2. Advantages of injectable contraceptives

High-dose contraceptive injections (150mg/time) will absorb slowly, have a prolonged effect, so only once can be contraceptive for 3 months, just like temporary maternity. Contraceptive injections do not affect fertility , so if you wantto get pregnant again just stop the drug for a few months. Breastfeeding babies with contraceptive injections will have a normal weight height, normal developmental intelligence. Therefore, the drug is still suitable for lactation women.

Contraceptive injections are given in combination with oral contraceptive tablets

Contraceptive injections inhibit ovulation 100%

Contraceptive injections inhibit ovulation by 100%, while inhibiting the secretion of mucus in the cervical very strongly that prevents sperm from penetrating the uterus, so it has a high contraceptive effect (99.6%).

This method of contraception does not cause vascular disorders, blood pressure, does not affect the production of steroids and immunity, does not cause edema, does not cause the development of uterine fibroids, so it can be used for people with uterine fibroids. Contraceptive injections can be given to people with unporated heart valve disease but not for people with severe heart disease such as myocardial infarction, vein obstruction.

3. Side effects of injectable contraceptives

Contraceptive injections have a number of side effects such as:

  • Amnicloss : This is a common side effect, about 60% of women taking the contraceptive pill in the form of injections encounter. This phenomenon is because the contraceptive pill contains only progestin, so the amount of progestin will be higher than estrogen compared to the normal rate. Therefore, the lining of the uterus will not thrive thickening and peeling, bleeding like at menstruation is usually called menstruation. This phenomenon is not harmful to health or reproduction later, so continue to take contraceptive injections.
  • Menstruation:When taking contraceptive injections can also suffer from menstruation, bleeding, bandages. Menstruation is a prolonged neuron (7-8 days), the amount of blood released is equal to or more than usual (50 – 80ml). This usually occurs only in the first injections of contraceptive injections then gradually, going into stabilization, so continue to take contraceptive injections.
  • Hemorrhagic is a little hemorrhage in the middle of the menstrual cycle. This phenomenon is not serious and does not require treatment, will run out on its own. Menstruation is more blood than normal menstruation, very rarely occurs.
  • Weight gain: Contraceptive injections can increase weight, usually gain 5% within 6 months, the weight gain continues to persist. If you take contraceptive injections and gain weight quickly, you should consult a specialist and may switch to other contraceptives.
  • Osteoporosis: Long-term use of contraceptive injections may reduce mineral concentrations in the bones in some women, however this condition may return to normal when the injection is stopped. Contraceptive injections cause female osteoporosis of any age, often occurring quickly and badly when given for more than 2 years, while for a period of 2 years, it is not very rare. Therefore, it is not recommended to take contraceptive injections for more than 2 years.
  • Mood changes :Contraceptive injections also make users change their mood just like when pregnant (when sad, when angry, depressed, tired) but only for a short time, if prolonged, treatment is required and after treatment a short time also runs out.
  • Headache :Also headache, lower abdominal pain, breast erection, nausea but not severe, can be handled in the usual ways.

Contraceptive injections cause symptoms of fatigue

Injectable contraceptive pills can cause fatigue

4. How long do you stop injecting contraceptives?

When you inject the contraceptive hormone, the drug will still work within 12 weeks, as there is a small amount of hormones that continue to secrete in the body after the last injection, so it may take a little longer for the menstrual cycle to return to normal. When you stop taking contraceptive injections, it may take months for your menstruation to return to normal (about 8 months on average) and up to 18 months you may be able to get pregnant again. Despite this, you still need to use another contraceptive within 14 weeks of the last injection if you do not want to get pregnant.

5. Who is not allowed to use contraceptive injections?

Contraceptive injections are inappropriate for some of the following women:

  • Pregnant women
  • Someone with breast cancer.
  • People at increased risk for coronary artery disease (such as older age, smoking, diabetes and hypertension).
  • People with hypertension or vascular disease.
  • People who are in deep vein embolism, pulmonary embolism or have been or are having cerebral vascular accidents or myocardial anemia.
  • People who are experiencing systemic lupus erythecies and have antiphospholipid antibodies (or do not take tests) or have severe tinglet reduction.
  • People with abnormal vaginal bleeding have not been diagnosed with the cause.
  • People who have had breast cancer and have shown no recurrence in the last 5 years.
  • People with diabetes have complications (kidneys, nerves, retina, blood vessels) or more than 20 years.

Currently, in all contraceptives, contraceptive injections are considered safe, effective and suitable for many women. However, to bring high contraceptive efficiency, you need to choose to perform injections in reputable, good-quality medical facilities.

Share99 International Health Hub is the address for examination, treatment and prevention of diseases, including obstetrics and gynecology. When carrying out the examination process at Share99, customers will be welcomed and used modern facilities and machinery systems accompanied by perfect medical services under the guidance and advice of good doctors, well-trained both at home and abroad.

For direct advice, please click hotline number or register online HERE. In addition, you can register for remote consultation HERE


  • Is it due to the effects of contraceptive injections that menstruation is lost?
  • Excess estrogen: What to know
  • How long does a contraceptive injection work?

About: John Smith

b1ffdb54307529964874ff53a5c5de33?s=90&r=gI am the author of I had been working in Vinmec International General Hospital for over 10 years. I dedicate my passion on every post in this site.


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