 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Nexplanon Subdermal: This product is a small, thin plastic rod that is inserted under the skin to prevent pregnancy. The rod slowly releases etonogestrel into the body over a 3-year period. Etonogestrel is similar to a natural hormone made in your body. This product does not contain any estrogen.This medication may not work as well in women who are very overweight or those taking certain drugs. (See also Drug Interactions section.) Discuss your birth control options with your doctor.Using this medication does not protect you or your partner against sexually transmitted diseases (such as HIV, gonorrhea, chlamydia). How to use Nexplanon Implant Read the Patient Information Leaflet provided by your pharmacist or health care provider before the rod is placed. Read and sign the Informed Consent provided by your doctor. You will also be given a User Card with the date and the place on your body where the rod was inserted. Keep the card and use it to remind yourself when to schedule an appointment to have the rod removed. </s>