Efficacy of IV Acetaminophen Versus Oral Acetaminophen

Active Intravenous doses will consist of a single 1,000mg/100 ml IV dose with contents of commercial vials transferred to an empty sterile IV bag.

500mg acetaminophen tablet ,2 capsules oral every six hours for 24 hours

Placebo Intravenous doses will consist of 100ml of normal saline transferred to an empty sterile IV bag.

Placebo, opaque capsules that have been filled with inert powder (lactose USP), 2 capsules oral every six hours for 24 hours