Lurbinectedin is a chemotherapy drug used to treat certain types of cancer. While it is an effective medication, it may cause some side effects in some patients. However, there is no information available in the provided sources regarding the symptoms of a lurbinectedin allergy.

The sources mention some of the common side effects of lurbinectedin, which include nausea, vomiting, fatigue, decreased appetite, constipation, and diarrhea. Some patients may also experience hair loss, mouth sores, and changes in taste. Additionally, the medication may cause low levels of white blood cells, which can increase the risk of infections.

It is important to note that if you experience any side effects while taking lurbinectedin, you should contact your healthcare provider immediately. They can evaluate your symptoms and determine the best course of action.

In conclusion, the provided sources do not provide information on the symptoms of a lurbinectedin allergy. If you have concerns about potential allergies to this medication, it is important to discuss them with your healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LURBINECTEDIN
[2] https://medlineplus.gov/druginfo/meds/a620049.html
[3] https://www.mskcc.org/cancer-care/patient-education/medications/lurbinectedin