Could a common muscle relaxant cut narcotic use after hysterectomy?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age \>18yo * Female * English speaking * Undergoing (robotic assisted or classic) total laparoscopic hysterectomy ± unilateral or bilateral salpingectomy ± unilateral or bilateral oophorectomy * If other procedures such as lysis of adhesions, excision of endometriosis, or ureterolysis are indicated based on intraoperative evaluation, those patients may still be included * Surgery took place at ChristianaCare Hospitals * No allergies or contraindications to standard of care post operative pain medications (acetaminophen, NSAIDs, narcotics) or cyclobenzaprine Exclusion Criteria: * Age \<18yo * Male * Pregnant, breastfeeding * Non-English speaking * Primary procedures other than laparoscopic hysterectomy * Laparoscopic myomectomy * Laparoscopic resection of endometriosis * Laparoscopic unilateral or bilateral salpingectomy ± unilateral or bilateral oophorectomy ± unilateral or bilateral cystectomy without hysterectomy * Hysteroscopic procedures * Bartholin gland marsupialization * Operations that are scheduled as or converted to the open approach * Procedures with planned or unplanned bladder or bowel surgery * Allergies or contraindications to standard post operative pain control medications (acetaminophen, NSAIDs, narcotics), such as kidney or liver damage/failure, bariatric surgery, history of gastric ulcer, etc. * Chronic pain issues, whether self-diagnosed or by a physician, currently undergoing management * Currently undergoing medication assisted treatment for opioid use disorder * Currently using opioids consistently * Allergies or contraindications to cyclobenzaprine: * Absolute: use of MAO inhibitors within 14 days, recent heart attack, congestive heart failure, heart block or other conduction abnormalities, cardiac arrhythmias, hyperthyroidism, history of serotonin syndrome * Allergies or contraindications to inactive ingredients in Flexeril, such as lactose * Patient's receiving gabapentin at baseline or postoperatively, due to potential sedating effects, or other sedating drugs such as scheduled benzodiazepines and barbiturates