Lurbinectedin is a medication used to treat certain types of cancer. According to the sources provided, there are some known side effects of lurbinectedin. The most common side effects include fatigue, nausea, vomiting, constipation, loss of appetite, and increased liver enzymes. Other possible side effects may include hair loss, low white blood cell count, anemia, and diarrhea [2][3]. It is important to note that not all people who take lurbinectedin will experience these side effects, and some people may experience different side effects. In addition, some side effects may be severe and require medical attention. Patients who experience any unusual symptoms while taking lurbinectedin should contact their healthcare provider immediately [2]. It is also important to inform healthcare providers of any other medications or supplements being taken, as lurbinectedin may interact with other drugs [2]. Overall, while lurbinectedin can be an effective treatment for certain types of cancer, patients should be aware of the potential side effects and discuss any concerns with their healthcare provider [1][2][3].

Sources:
[1] Drug Patent Watch. (n.d.). Lurbinectedin. Retrieved from https://www.drugpatentwatch.com/p/tradename/LURBINECTEDIN
[2] Mayo Clinic. (2021). Lurbinectedin (Intravenous Route): Side Effects. Retrieved from https://www.mayoclinic.org/drugs-supplements/lurbinectedin-intravenous-route/side-effects/drg-20490804?p=1
[3] Zepzelca. (n.d.). Side Effects. Retrieved from https://www.zepzelca.com/zepzelca-side-effects/