Gemzar Side Effects
Generic Name: gemcitabine
Note: This document contains side effect information about gemcitabine. Some of the dosage forms listed on this page may not apply to the brand name Gemzar.
Some side effects of Gemzar may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to gemcitabine: intravenous powder for solution, intravenous solution
Along with its needed effects, gemcitabine (the active ingredient contained in Gemzar) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking gemcitabine:More common
- Bleeding gums
- blood in urine or stools
- burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
- chest pain
- cloudy urine
- coughing up blood
- cough or hoarseness
- difficult or labored breathing
- difficulty in moving
- difficulty in swallowing
- fever or chills
- general feeling of discomfort or illness
- increased menstrual flow or vaginal bleeding
- joint pain
- lack or loss of strength
- loss of appetite
- lower back or side pain
- muscle aching or cramping
- muscle pains or stiffness
- painful or difficult urination
- pale skin
- pinpoint red spots on skin
- prolonged bleeding from cuts
- red or black, tarry stools
- red or dark brown urine
- runny nose
- shortness of breath
- sores, ulcers, or white spots on lips or in mouth
- sore throat
- swelling of hands, ankles, feet, or lower legs
- swollen glands
- swollen joints
- tightness in chest
- troubled breathing with exertion
- trouble sleeping
- unusual bleeding or bruising
- unusual tiredness or weakness
- weight loss
- Blurred vision
- chest discomfort
- fast, slow, or irregular heartbeat
- headache (sudden and severe)
- inability to speak
- noisy breathing
- pain or discomfort in arms, jaw, back or neck
- pounding in the ears
- slurred speech
- temporary blindness
- weakness in arm and/or leg on one side of the body (sudden and severe)
- rapid, shallow breathing
- puffiness or swelling of the eyelids or around the eyes, face, lips or tongue
- skin rash
Some side effects of gemcitabine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- Difficulty having a bowel movement (stool)
- hair loss
- sleepiness or unusual drowsiness
- swelling or inflammation of the mouth
- thinning of hair
- Bleeding, blistering, burning, coldness, discoloration of skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at site
For Healthcare Professionals
Applies to gemcitabine: intravenous powder for injection, intravenous solution
Myelosuppression is the major dose-limiting factor associated with gemcitabine (the active ingredient contained in Gemzar) therapy.
Dosage adjustments for hematologic toxicity are frequently necessary. Less than 1% of patients have had to discontinue therapy for either anemia, leukopenia, or thrombocytopenia. Grade 3/4 thrombocytopenia was more common in the elderly, especially older women.
The risk for thrombotic thrombocytopenic purpura increases as the cumulative dose of gemcitabine approaches 20,000 mg/m2.
Hematologic side effects including anemia (68%), leukopenia (62%), neutropenia (63%), thrombocytopenia (24%), petechiae (16%), thrombotic thrombocytopenic purpura (0.015% to 1.4%), and sepsis (less than 1%) have been reported. Red blood cell transfusions were required by 19% of patients.
Gastrointestinal side effects including nausea and vomiting (69%), diarrhea (19%) and stomatitis (11%) have been reported. A case of severe anal pruritus has also been reported.
If the patient is not vomiting due to their disease state, nausea can generally be prevented by administration of prochlorperazine or low-dose oral serotonin antagonists and glucocorticoid therapy. One study of 790 patients found the rate of WHO grade 3 nausea and vomiting at a frequency of 22% in patients under 65 years of age, and 12% in patients 65 years of age or older.
No evidence of increased hepatic toxicity has been reported with longer duration or greater total cumulative dose.
Hepatic side effects including transient elevations in ALT (68%), AST (67%), alkaline phosphatase (55%), bilirubin (13%), and GGT have been reported. Serious hepatotoxicity including liver failure and death have been reported very rarely.
Renal side effects including proteinuria (45%), hematuria (35%), renal failure, hemolytic-uremic syndrome (0.25%), and nephrotoxicity have been reported.
Renal failure may not be reversible, even upon discontinuation of therapy.
The flu-like symptoms usually take place a few hours after drug administration. The symptoms are usually self-limiting and recovery is generally within 24 to 48 hours. Less than 1% of patients discontinued use due to flu-like symptoms. Some patients get relief from nonsteroidal anti-inflammatory drugs or acetaminophen.
Out of the five reported cases of distal ischemic changes, four of those case related to combination chemotherapy with cisplatin and gemcitabine (the active ingredient contained in Gemzar) while one case was of gemcitabine as a single agent in first-line therapy.
Other side effects including fever (41%), frequently associated with other flu-like symptoms, has been reported. There was a 16% incidence of infection among the patients with fever. Both fever and asthenia have frequently been reported as isolated effects. Flu syndrome (19%), including fever, asthenia, anorexia, headache, cough, chills, and myalgia has been reported. Insomnia, rhinitis, sweating, and malaise have been reported infrequently. Vasculitis and gangrene have been reported very rarely. Five cases of distal ischemic changes have been reported.
A pattern of tissue injury typically associated with radiation toxicity has also been reported in association with the use of gemcitabine.
Rash was generally a macular or finely granular maculopapular pruritic eruption, mild to moderate in severity, involving the trunk and extremities. Alopecia is usually minimal.
Dermatologic side effects including rash (30%), alopecia (15%), pruritus (13%), and radiation recall have been reported. Cellulitis has been reported rarely. Severe skin reactions including desquamation and bullous skin eruptions have been reported very rarely. Two cases of pseudocellulitis have been reported. A case of linear immunoglobulin A bullous dermatosis has also been reported.
Some of the dyspnea reported may have been due to underlying disease. Forty percent of the study population consisted of lung cancer patients, while some of the other study patients had pulmonary manifestations of other malignancies.
Different patterns of lung injury may be related to gemcitabine (the active ingredient contained in Gemzar) A rapid response following the administration of corticosteroids would mean the respiratory problem was probably due to a hypersensitivity reaction.
Respiratory side effects including dyspnea (23%), sometimes accompanied by bronchospasm (<2%) have been reported. Parenchymal toxicity, including interstitial pneumonitis, pulmonary fibrosis, pulmonary edema, and adult respiratory distress syndrome has been reported rarely. Respiratory failure and death have been reported very rarely (in some patients, despite the discontinuation of therapy).
Less than 1% of the paresthesias have been severe.
Nervous system side effects including paresthesias (10%) have been reported.
Local side effects including "injection-site-related events" (4%) have been reported by the manufacturer.
Hypersensitivity side effects including anaphylactoid reactions have been reported rarely.
Many of the patients that suffered cardiovascular effects had a prior history of cardiovascular disease. Two percent of patients discontinued therapy due to these effects. Less than 1% of patients discontinued due to edema.
Cardiovascular side effects including peripheral edema (20%), edema (13%), cerebrovascular accident, hypotension, hypertension, and generalized edema (less than 1%) have been reported. Atrial fibrillation has been reported rarely. Postmarketing cases of congestive heart failure, myocardial infarction, arrhythmias (predominantly supraventricular in nature), peripheral vasculitis, gangrene, and capillary leak syndrome have been reported.
Immunologic side effects including a scleroderma-like reaction have been reported.
Long term animal studies to evaluate carcinogenic potential have not been conducted.
Oncologic side effects have been reported in animal studies. Gemcitabine induced forward mutations in vitro in a mouse lymphoma assay and was clastogenic in an in vivo micronucleus assay.
More about Gemzar (gemcitabine)
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