How Long Does It Take Chemotherapy to Start Working?

Some people feel the effects of chemo right away, but for others, it takes a day or two. Not all chemo drugs have the same side effects.

How long does chemo take to shrink a tumor?

In general, chemotherapy can take about 3 to 6 months to complete. It may take more or less time, depending on the type of chemo and the stage of your condition. It's also broken down into cycles, which last 2 to 6 weeks each.

How long after chemo will I feel better?

Most people say it takes 6 to 12 months after they finish chemotherapy before they truly feel like themselves again. Read the resource Managing Cognitive Changes: Information for Cancer Survivors for more information about managing chemo brain.