Medically reviewed on July 4, 2018
The Implanon brand name has been discontinued in the U.S. If generic versions of this product have been approved by the FDA, there may be generic equivalents available.
Uses of Implanon:
- It is used to prevent pregnancy.
What do I need to tell my doctor BEFORE I take Implanon?
- If you have an allergy to etonogestrel or any other part of Implanon (etonogestrel).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have blood clots or have had blood clots in the past.
- If you have liver tumors.
- If you have liver disease.
- If you have unexplained vaginal bleeding.
- If you have ever had breast cancer or another cancer where hormones make it grow.
- If you have given birth within the last 21 days.
- If you are pregnant or may be pregnant. Do not take Implanon (etonogestrel) if you are pregnant.
- If you have not started your period.
This is not a list of all drugs or health problems that interact with Implanon (etonogestrel).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Implanon (etonogestrel) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Implanon?
- Tell all of your health care providers that you take Implanon (etonogestrel). This includes your doctors, nurses, pharmacists, and dentists.
- Be sure to have regular breast exams and gynecology check-ups. Your doctor will tell you how often to have these. You will also need to do breast self-exams as your doctor has told you. Talk with your doctor.
- After Implanon (etonogestrel) has been put in, use a non-hormone type of birth control like condoms until the placement of Implanon (etonogestrel) has been checked. Talk with your doctor.
- If you feel that the implant has been broken or bent while in your arm, talk with the doctor.
- If you get pregnant while taking Implanon (etonogestrel), the chance of pregnancy outside of the uterus (ectopic pregnancy) may be raised. Talk with your doctor.
- Blood clots have happened with Implanon (etonogestrel). Sometimes, these blood clots have been deadly. Talk with the doctor.
- Talk with your doctor if you will need to be still for long periods of time like long trips, bedrest after surgery, or illness. Not moving for long periods may raise your chance of blood clots.
- A cyst on the ovary may rarely happen.
- If you have high blood sugar (diabetes), talk with your doctor. This medicine may raise blood sugar.
- Check your blood sugar as you have been told by your doctor.
- High blood pressure has happened with Implanon (etonogestrel). Have your blood pressure checked as you have been told by your doctor.
- This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take Implanon (etonogestrel).
- If you drink grapefruit juice or eat grapefruit often, talk with your doctor.
- Certain drugs, herbal products, or health problems could cause Implanon (etonogestrel) to not work as well. Be sure your doctor knows about all of your drugs and health problems.
- This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking Implanon (etonogestrel) with your other drugs.
- This medicine does not stop the spread of diseases like HIV or hepatitis that are passed through blood or having sex. Do not have any kind of sex without using a latex or polyurethane condom. Do not share needles or other things like toothbrushes or razors. Talk with your doctor.
- If Implanon (etonogestrel) is removed and you do not want to get pregnant, use birth control right after it is removed. Pregnancy has happened shortly after Implanon (etonogestrel) was removed. Talk with the doctor.
- A pregnancy test will be done to show that you are NOT pregnant before starting Implanon (etonogestrel). If you get pregnant while taking Implanon (etonogestrel), call your doctor right away.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
How is this medicine (Implanon) best taken?
Use Implanon (etonogestrel) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- A rod is placed under the skin in the upper arm. This is a minor surgery. The rod must be changed every 3 years.
- Follow what your doctor has told you to do.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Signs of high blood sugar like confusion, feeling sleepy, more thirst, more hungry, passing urine more often, flushing, fast breathing, or breath that smells like fruit.
- Signs of high blood pressure like very bad headache or dizziness, passing out, or change in eyesight.
- Weakness on 1 side of the body, trouble speaking or thinking, change in balance, drooping on one side of the face, or blurred eyesight.
- Shortness of breath, a big weight gain, or swelling in the arms or legs.
- Low mood (depression).
- Mood changes.
- Very bad belly pain.
- Change in eyesight, eye pain, or very bad eye irritation.
- Loss of eyesight.
- A lump in the breast or breast soreness.
- Breast pain.
- Change in how contact lenses feel in the eyes.
- Flu-like signs.
- Vaginal bleeding that is not normal.
- Call your doctor right away if you have signs of a blood clot like chest pain or pressure; coughing up blood; shortness of breath; swelling, warmth, numbness, change of color, or pain in a leg or arm; or trouble speaking or swallowing.
What are some other side effects of Implanon?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Weight gain.
- Pimples (acne).
- Vaginal irritation.
- Period (menstrual) changes. These include lots of bleeding, spotting, or bleeding between cycles.
- Irritation where rod was placed.
- Belly pain.
- Throat irritation.
- Back pain.
- Upset stomach.
- Feeling nervous and excitable.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Implanon?
- If you need to store Implanon (etonogestrel) at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Implanon (etonogestrel), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Implanon (etonogestrel)
- Implanon Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Interactions
- Compare Alternatives
- Support Group
- 1604 Reviews
- Drug class: contraceptives
Other brands: Nexplanon