Food Safety Report: IHOP, 3780 S Maryland Pkwy, Las Vegas, NV 89119, United States 1 year ago • details 264 Comments Comment Suspected food poisoning. Symptoms: Nausea, Vomiting, Stomach Pain, Cramps, Chills, Headache Suspected source: Sausage, bacon, egg, hash brown Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 3 people