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What Is Gemzar?

Gemzar is a brand name for gemcitabine, an antimetabolite chemotherapy medicine. It interferes with the ability of cancer cells to make DNA and divide. It is given by intravenous infusion as part of treatment for certain cancers.

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What Is Gemzar?

Gemzar is a brand name for gemcitabine, an antimetabolite chemotherapy medicine. It interferes with the ability of cancer cells to make DNA and divide. It is given by intravenous infusion as part of treatment for certain cancers.

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What Is Gemzar Used For?

Gemzar is used for certain pancreatic cancers. In specified treatment plans, it is combined with other chemotherapy medicines for ovarian, breast, or non-small cell lung cancer. The regimen depends on the cancer type, stage, and prior treatment.

How Does Gemzar Work?

Gemcitabine enters cells and disrupts DNA production. This can slow or stop the growth of cancer cells. Healthy cells that divide rapidly can also be affected, which contributes to side effects.

How Is Gemzar Given?

A healthcare professional gives Gemzar as an infusion into a vein. Treatment takes place on scheduled days within a cycle, and the schedule differs by cancer type and drug combination. The oncology team checks blood counts and other test results before deciding whether to give, delay, or adjust a dose.

What Are the Risks of Gemzar?

Nausea, fatigue, fever, rash, and low blood cell counts can occur. Low counts can raise the risk of infection, anemia, or bleeding. Patients should promptly report fever, unusual bruising, shortness of breath, or new breathing problems to their oncology team.

Frequently Asked Questions About Gemzar

Is Gemzar the same medicine as gemcitabine?

Yes. Gemzar is a brand name for gemcitabine.

Is Gemzar taken at home?

No. Gemzar is administered by intravenous infusion under the care of a healthcare professional.

Can Gemzar be combined with other chemotherapy?

Yes. Several Gemzar treatment plans include another chemotherapy medicine.

Why are blood tests needed during Gemzar treatment?

Gemzar can lower blood cell counts and affect organ function. Test results help the oncology team decide whether treatment can proceed as scheduled.

References

Definition of gemcitabine hydrochloride - NCI Drug Dictionary. National Cancer Institute. https://www.cancer.gov/publications/dictionaries/cancer-drug/def/gemcitabine-hydrochloride. Date Accessed October 6, 2026.

Gemcitabine (intravenous route) - Side effects & uses. Mayo Clinic. https://www.mayoclinic.org/drugs-supplements/gemcitabine-intravenous-route/description/drg-20066935. Date Accessed October 6, 2026.

Gemcitabine Injection. MedlinePlus. https://www.medlineplus.gov/druginfo/meds/a696019.html. Date Accessed October 6, 2026.

Gemcitabine Injection: Uses & Side Effects. Cleveland Clinic. https://my.clevelandclinic.org/health/drugs/19129-gemcitabine-injection. Date Accessed October 6, 2026.

Types of chemotherapy. MedlinePlus. https://www.medlineplus.gov/ency/patientinstructions/000910.htm. Date Accessed October 6, 2026.