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My Westie has lymphoma. What are Levkeran & Lomustine side effects?

Updated On September 23rd, 2025

Pet's info: Dog | West Highland White Terrier | Male | neutered | 12 years and 11 months old | 20.6 lbs

What are the side effects of Levkeran and Lomustine in a 20 pound Westie diagnosed with Lymphoma? Thank you

1 Answer

Most Helpful Answer

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Answered By Mirissa Duncil, DVM

Veterinarian

Published on August 1st, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear Henry has lymphoma, I know this is a difficult time for your family. Side effects, especially from Lomustine can include bone marrow suppression, but more commonly GI upset signs like vomiting, diarrhea, etc. If the side effects are very severe, please contact your doctor, as we can administer gi protectants as well as anti nausea medications to help lessen the symptoms. My best to all of you.

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