 <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]  taken by mouth for one month (at least 28 days). This is to see how well you can take these medications. This product is given by injection into a muscle as directed by your doctor, usually once every month or once every 2 months. It is given by 2 injections, usually one on each side of your buttocks by a health care professional. The dosage is based on your medical condition and response to treatment. It is very important to keep using these medications exactly as prescribed by your doctor. To help you remember, it may help to mark your calendar. If you miss or will miss a planned monthly injection, tell your health care professional right away so that you may be given directions for your continued HIV treatment.The side effects of Rilpivirine Intramuscular: Injection site pain/discomfort, swelling, redness, itching, bruising, or a hardened mass or lump may occur. Headache, tiredness, nausea, or trouble sleeping may also occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Rarely, temporary symptoms such as sweating, shortness of breath, stomach cramps, dizziness/lightheadedness, or mouth numbness have happened after receiving the injections. Most symptoms </s>