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Clinical Adverse Events
Adverse events which occurred in at least 5% of patients in any arm of the two clinical efficacy trials and the open trial are listed below by treatment group. All patients listed had at least one post baseline visit during the 12 study weeks. These adverse events should be considered by the physician when prescribing MEGACE Oral Suspension.
ADVERSE EVENTS % of Patients Reporting
|Megestrol Acetate, mg/day No. of Patients||Trial 1
|Open Label Trial|
|800 N=65||Placebo 0
Adverse events which occurred in 1% to 3% of all patients enrolled in the two clinical efficacy trials with at least one follow-up visit during the first 12 weeks of the study are listed below by body system. Adverse events occurring less than 1% are not included. There were no significant differences between incidence of these events in patients treated with megestrol acetate and patients treated with placebo.
Body as a Whole: abdominal pain, chest pain, infection, moniliasis and sarcoma
Cardiovascular System: cardiomyopathy and palpitation
Hemic and Lymphatic System: leukopenia
Metabolic and Nutritional: LDH increased, edema and peripheral edema
Special Senses: amblyopia
Postmarketing reports associated with MEGACE Oral Suspension include thromboembolic phenomena including thrombophlebitis and pulmonary embolism, and glucose intolerance (see WARNINGS and PRECAUTIONS).
Read the Megace (megestrol acetate) Side Effects Center for a complete guide to possible side effects
Pharmacokinetic studies show that there are no significant alterations in pharmacokinetic parameters of zidovudine or rifabutin to warrant dosage adjustment when megestrol acetate is administered with these drugs. The effects of zidovudine or rifabutin on the pharmacokinetics of megestrol acetate were not studied.
Long-term treatment with MEGACE may increase the risk of respiratory infections. A trend toward increased frequency of respiratory infections, decreased lymphocyte counts, and increased neutrophil counts was observed in a 2-year chronic toxicity/carcinogenicity study of megestrol acetate conducted in rats.
Read the Megace Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 4/19/2012
This monograph has been modified to include the generic and brand name in many instances.
Additional Megace Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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