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Table 3 Intervention concealment

From: The Opioid Analgesic Reduction Study (OARS)—a comparison of opioid vs. non-opioid combination analgesics for management of post-surgical pain: a double-blind randomized clinical trial

Capsule number OPIOID content NON-OPIOID content Quantity for a dose Total dispensed Capsule size Color
1 Hydrocodone 5 mg/acetaminophen 300 mg Ibuprofen 400 mg 1 20 AA Brown
2 Placebo Acetaminophen 500 mg 1 20 00 White