When combining medications, it's important to be cautious to avoid taking too much. It's best to consult with a pharmacist to ensure that the medications you are taking together are safe. Some over-the-counter products can interact with each other or with existing health conditions, so it's always a good idea to seek professional advice. Acetaminophen can be a good choice for relieving symptoms like chills and body aches, but it's important to avoid combining it with other medications that also contain acetaminophen. Be sure to read labels carefully and follow the recommended dosage guidelines.