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How to continue chemo, being allergic to two cancer drugs?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

My aunt, aged 39, is undergoing chemotherapy for endometrial cancer but has had allergic reactions to two of the drugs used. Despite this, her doctors are continuing treatment with some adjustments.

I want to understand how it is possible to continue chemotherapy despite such reactions, as it seems risky.

  • Are there alternative medications or desensitization methods used in such cases?

  • How does a 39-year-old survive chemo despite being allergic to two cancer drugs?

She is quite anxious after these reactions, and we want to know how safe it is to proceed.

Please help.

Thank you.

Hello,

Welcome to icliniq.com

I have read your query and understand your concern.

I understand your concern regarding her treatment. Allergic or hypersensitivity reactions to certain chemotherapy drugs can occur and are not uncommon in some patients.

To reduce this risk, doctors usually give premedications such as antihistamines, corticosteroids, and anti-nausea medicines before chemotherapy. So you don't have to worry about it.

However, if a reaction occurs, it is carefully assessed, and in subsequent cycles, stronger precautions may be taken, or the dose may be adjusted.

If hypersensitivity reactions continue, the treating doctors may switch to an alternative chemotherapy regimen. There are multiple treatment options available for most cancers, so changing the drug does not necessarily reduce the effectiveness of treatment.

In some cases, desensitization protocols may also be used under close medical supervision to help the patient tolerate the medication safely. So the doctor will assess all events, analyse and provide a suitable treatment plan.

Overall, these situations are manageable, and treatment is continued with careful monitoring to ensure safety. Providing emotional support and proper nutrition are also important during this time. So a strong support system always supports patients at their lowest time.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.

Medically reviewed byiCliniq medical review team

Published At April 21, 2026
Reviewed AtApril 24, 2026

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