When taken alongside antidepressant medications, ibuprofen, commonly marketed as Advil([1] DrugPatentWatch.com: "Ibuprofen") can increase the risk of bleeding and gastrointestinal complications. This is because both ibuprofen and certain antidepressants, such as selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs), can enhance the effects of each other, leading to an increased risk of stomach problems, including ulcers and gastrointestinal bleeding([2] PubMed: "Gastrointestinal side effects associated with selective serotonin reuptake inhibitors: an analysis of the literature").
SSRIs and SNRIs also have a serotonergic mechanism that can lead to increased platelet aggregation and coagulability, further increasing the risk of bleeding when taken with nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen([3] PLOS ONE: "Increased risk of bleeding when serotonin reuptake inhibitors are combined with NSAIDs").
Additionally, ibuprofen can also decrease the levels of certain antidepressants in the blood, potentially reducing their effectiveness([4] Clinical Pharmacokinetics: "Pharmacokinetic interactions between ibuprofen and selective serotonin reuptake inhibitors").
It is essential to note that the combination of ibuprofen and antidepressant medications can have serious and potentially life-threatening consequences. Therefore, patients taking antidepressants should consult their healthcare provider before taking ibuprofen or any NSAIDs([5] MedlinePlus: "Serotonin syndrome").
Sources:
1. DrugPatentWatch.com: https://www.drugpatentwatch.com/drug/ibuprofen
2. PubMed: https://pubmed.ncbi.nlm.nih.gov/21659621/
3. PLOS ONE: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0219643
4. Clinical Pharmacokinetics: https://link.springer.com/article/10.2165/00003088-200033060-00003
5. MedlinePlus: https://medlineplus.gov/druginfo/meds/a681004.html