Fam-trastuzumab deruxtecan and Stomach Pain: What Users Say

• Anonymous
• Taken for less than 1 month
• April 27, 2023

For Stomach Cancer "As a patient, I can't rate the efficacy of this medication because I have had only one round. After many rounds of chemotherapy using other medications, I can say that the side effects of this medication were much worse and enduring after one round. Severe diarrhea, debilitating fatigue, debilitating nausea, and stomach pain. Side effects began on day four and lasted until day 7. Will take half dose next round but will continue on the regimen as prescribed for now. One lousy week out of three is not acceptable to me. If the next round is as bad, I will cease using this medication. The oncologist stated that while I tolerated other regimens better than most, I tolerated Enhertu worse than most."

• Ano...
• Taken for 1 to 6 months
• August 17, 2025

For Breast Cancer, Metastatic "Hair loss, stomach pain, fatigue, nausea, back pain, constipation, increased hunger, mouth sores. It takes 9-10 days out of the 21-day cycle to recover after each infusion."

• Pus...
• Taken for less than 1 month
• May 27, 2023

For Breast Cancer, Metastatic "I experienced stomach pain and fatigue during the first week. After week three, my hair started to thin, and my blood count is very low."