Hingorani 1970.

Methods	CCT; double‐blind; not randomised Follow‐up: 7 days. Outcome measurements at baseline, and after 3 and 7 days
Participants	Population and setting: 83 participants with acute low back pain warranting inpatient treatment, 59 men, 24 women Inclusion criteria: pain in the lower back of acute or chronic onset Exclusion criteria: neoplasms, myeloma, Paget's disease, collagen disease, rheumatoid arthritis, ankylosing spondylitis, and people with contraindications to either drug
Interventions	NSAID (i): indomethacin 25 mg, q.i.d., 7 days (N = 40) NSAID (ii): oxyphenbutazone 100 mg, q.i.d., 7 days (N = 43)
Outcomes	Total pain score (4‐point scale), total physical examination score (fingertip‐floor distance, inch), total functional status score (movements; 4‐point scale), paracetamol use, adverse events
Notes	1. LBP of both acute and chronic onset included, no distinction made; no subgroup analysis 2. We were unable to find contact details to ask for clarification (21 October 2019)