A topical lotion that provides fast-acting, water resistance pain relief from arthritis, joint aches, muscle aches, tennis elbow, bursitis and more.
Opioid analgesia for acute low back pain and neck pain (the OPAL trial) – DOI
Opioids should not be recommended for acute non-specific low back pain or neck pain given that we found no significant difference in pain severity …
Source: back pain