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Megace ES Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Megace ES (megestrol) oral suspension is a synthetic form of the hormone progesterone used to increase appetite and prevent weight loss in patients with AIDS or other diseases that cause decreased appetite and weight loss. It is also used to treat cancer of the breast or uterus. Common side effects include weight gain, changes in appetite, stomach upset, diarrhea, gas, trouble sleeping, menstrual changes, or fever.
The recommended dosage of Megace ES is 625 mg/day (5 mL/day or 1 teaspoon daily). Megace ES should not be used during pregnancy. Megace ES may interact with indinavir or insulin or oral diabetes medications. Tell your doctor all medications you use. Tell your doctor if you are pregnant or think you may be pregnant. Women of childbearing age should use an effective form of birth control while using this medication. Consult your doctor about using Megace ES before breastfeeding.
Our Megace ES (megestrol acetate) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Megace ES in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have a serious side effect such as:
- high blood sugar (increased thirst, increased urination, hunger, dry mouth, fruity breath odor, drowsiness, dry skin, blurred vision, weight loss);
- nausea, vomiting, dizziness, weakness, or feeling like you might pass out;
- sudden numbness or weakness, especially on one side of the body;
- chest pain, sudden cough, wheezing, rapid breathing, fast heart rate; or
- high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, confusion).
Less serious side effects may include:
- upset stomach;
- vaginal bleeding;
- mild skin rash;
- sleep problems (insomnia); or
- decreased interest in sex, impotence, trouble having an orgasm.
Read the entire detailed patient monograph for Megace ES (Megestrol Acetate) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Megace ES Overview - Patient Information: Side Effects
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these rare but serious side effects occur: fast/pounding heartbeat, headache, swelling of hands/feet, fatigue.
Seek immediate medical attention if any of these rare but very serious side effects occur: chest pain, confusion, mental/mood changes, weakness/numbness on one side of the body, pain/redness/swelling of arms or legs, slurred speech, trouble breathing, severe or sudden vision changes.
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Megace ES (Megestrol Acetate)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Megace ES FDA Prescribing Information: Side Effects
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® ES (megestrol acetate) oral suspension.
% of Patients Reporting
No. of Patients
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.
Cardiovascular System - cardiomyopathy and palpitation
Hemic and Lymphatic System - leukopenia
Special Senses - amblyopia
Postmarketing reports associated with megestrol acetate oral suspension include thromboembolic phenomena including thrombophlebitis, deep vein thrombosis, and pulmonary embolism; and glucose intolerance (see WARNINGS and PRECAUTIONS sections).
Read the entire FDA prescribing information for Megace ES (Megestrol Acetate) »
Additional Megace ES Information
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Megace ES User Reviews
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