It is generally considered safe to take NyQuil and ibuprofen together for most people. NyQuil contains acetaminophen (a pain reliever and fever reducer), while ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that also reduces pain and fever. Because they work differently, they can be taken at the same time to help relieve symptoms like headache, body aches, and sore throat. However, taking both together increases the risk of additive side effects such as drowsiness, nausea, stomach pain, and dizziness. People with certain health conditions (e.g., heart disease, liver/kidney issues, digestive problems) or those on other medications should consult a healthcare provider before combining them. It's also important not to take other acetaminophen- containing medications with NyQuil to avoid overdose. You can take NyQuil and ibuprofen simultaneously or alternate doses every 4-6 hours if preferred. If unsure, checking with a healthcare professional is recommended for safety regarding personal health circumstances.