 <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]  drugs. If you have any questions, ask your doctor or pharmacist. Take this product by mouth with meals as directed by your doctor. Take the multi-drug tablets and dasabuvir once every morning. Then take dasabuvir once every evening. This product works best when the amount of drug in your body is kept at a constant level. Take this product at evenly spaced intervals. To help you remember, take it at the same time(s) each day. Do not skip any doses. Continue to take this product for the full length of time prescribed, even if symptoms disappear after a short time. Stopping the medication too early may result in a return of the infection.The side effects of Viekira Pak Oral: See also Warning section. Tiredness, weakness, nausea, mild itching, or difficulty sleeping may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this product has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this product do not have serious side effects. This product can commonly cause a rash that is usually not serious. However, you may not be able to tell it apart from </s>