What is the prognosis for an adult who ingests seventy-five 200 mg ibuprofen tablets?

Good. Seventy-five 200 mg tablets = 15,000 mg or 4.6 times the maximum recommended daily dosage (3600 mg). With this amount, the patient will often experience gastrointestinal upset (nausea, vomiting, abdominal pain) as well as mild neurological symptoms (drowsiness, lethargy, ataxia, nystagmus, tinnitus, disorientation).

However, at greater amounts 5 - 10 times the recommended max daily dose, lethal complications such as coma, GI bleed, renal failure and metabolic acidosis can ensue.


Source

Olson, K. MD. Poisoning & Drug Overdose 4th ed. 2004.