This study is about finding ways to reduce the use of opioids, which are strong painkillers, after hip replacement surgery for osteoarthritis. Osteoarthritis is a condition where the joints become painful and stiff. The trial tests if a plan using fewer opioids can still control pain well. Some people will receive a regular opioid prescription, while others get a placebo, which is a tablet with no medicine in it. Everyone will have access to a small amount of a strong pain reliever, hydromorphone, if needed.

The study checks how much opioids are used, pain levels, and how patients feel about their treatment in the first week, and then again at 3 weeks and 3 months after surgery. The study helps see if using fewer opioids still offers good pain relief and patient satisfaction without increasing risks.

• This study involves follow-up visits at 1 week, 3 weeks, and 3 months.
• Eligibility requires no opioid use 4 weeks before surgery and ability to attend follow-ups.
• Participants receive counseling from a Life Care Specialist and may be given a placebo.