Advil is a brand name for the nonsteroidal anti-inflammatory drug (NSAID) ibuprofen. It is used to relieve pain, reduce fever, and decrease inflammation. Mixing Advil with other medications can have potential side effects, which are important to be aware of.

According to Drug Patent Watch [1], Advil is a combination of ibuprofen and pseudoephedrine. Pseudoephedrine is a decongestant that can cause side effects such as nervousness, restlessness, and increased heart rate. The combination of Advil with other medications that contain pseudoephedrine or other decongestants can increase the risk of these side effects.

The official Advil website [2] states that taking Advil with other NSAIDs or aspirin can increase the risk of stomach bleeding and ulcers. Additionally, taking Advil with blood-thinning medications such as warfarin or heparin can increase the risk of bleeding.

Medical News Today [3] reports that taking Advil with certain medications can also affect how the body metabolizes the drugs. For example, taking Advil with lithium can increase the levels of lithium in the blood, which can be toxic. Taking Advil with diuretics can decrease the effectiveness of the diuretic and increase the risk of kidney damage.

In conclusion, mixing Advil with other medications can have potential side effects. It is important to read the labels of all medications and consult with a healthcare provider before taking Advil with other drugs. Some of the side effects of mixing Advil include increased heart rate, stomach bleeding and ulcers, bleeding, and changes in drug metabolism.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.advil.com/advil-safety/combining-medications/
[3] https://www.medicalnewstoday.com/articles/322793