In Summary. Commonly reported side effects of ibuprofen include: hemorrhage, vomiting, anemia, decreased hemoglobin, eosinophilia, and hypertension. If you are overdose with ibuprofen or any other drugs, you should go to the emergency as soon as possible for the immediate treatment to avoid any future harms to your body. If you've been treating your child with acetaminophen and you run out, it's fine to switch from acetaminophen to ibuprofen or vice versa. These medicines both relieve pain and fever, though they work differently in the body. Discusses how and why bruises and blood spots might develop. Offers checklist to help you decide when to call a doctor. Offers home treatment and prevention tips. You might think aspirin and ibuprofen are interchangeable when it comes to pain relief, but they're not. Detailed dosage guidelines and administration information for Viibryd (vilazodone hydrochloride). Includes dose adjustments, warnings and precautions. 1. Chickenpox starts with red spots. They can appear anywhere on the body. How an Ibuprofen Overdose Can Happen. When it comes to taking any medication — whether a prescription or one that’s available over-the-counter — you always want to take the smallest amount possible that will help relieve your symptoms. Acetaminophen belongs to a class of drugs called analgesics. Ibuprofen belongs to the drug class called nonsteroidal anti-inflammatory drugs (NSAIDs). A recent study raises some serious concerns about the wisdom of taking ibuprofen during exercise, at least among endurance athletes.