FDA label e1fc15a8-58f3-41f3-91ee-613a57b40499

openFDA label record#

This page contains supplementary openFDA label data. For the canonical label presentation, use the corresponding DailyMed Structured Product Label.

Verified complete openFDA source JSON (canonical bytes are SHA-256 checked before publication)

SPL set ID
65b28775-ee59-88cf-e4d8-372c6c79ad14
SPL ID
e1fc15a8-58f3-41f3-91ee-613a57b40499
Version
9
Effective date
2019-02-06
Source export date
2026-09-28
Source partition
9
Source file
https://download.open.fda.gov/drug/label/drug-label-0009-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-09-28/6784607726c827491ceaeab30d843632e0660ee8008c535197be5ed9e1e52201/drug-label-0009-of-0014.json.zip
Source manifest SHA-256
cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run
20260929T050834Z
Imported at
2026-09-29 05:58:37

Warnings cross-check#

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Warnings sections page 1 of 1 · 1 matching rows.

warnings

WARNINGS Megestrol acetate may cause fetal harm when administered to a pregnant woman. For animal data on fetal effects, see PRECAUTIONS: Carcinogenesis, Mutagenesis, Impairment of Fertility: Impairment of Fertility . There are no adequate and well-controlled studies in pregnant women. If this drug is used during pregnancy, or if the patient becomes pregnant while taking (receiving) this drug, the patient should be apprised of the potential hazard to the fetus. Women of childbearing potential should be advised to avoid becoming pregnant. Megestrol acetate is not intended for prophylactic use to avoid weight loss. (See also PRECAUTIONS: Carcinogenesis, Mutagenesis, Impairment of Fertility .) The glucocorticoid activity of MEGACE (megestrol acetate, USP) Oral Suspension has not been fully evaluated. Clinical cases of new onset diabetes mellitus, exacerbation of preexisting diabetes mellitus, and overt Cushing’s syndrome have been reported in association with the chronic use of MEGACE. In addition, clinical cases of adrenal insufficiency have been observed in patients receiving or being withdrawn from chronic MEGACE therapy in the stressed and non-stressed state. Furthermore, adrenocorticotropin (ACTH) stimulation testing has revealed the frequent occurrence of asymptomatic pituitary-adrenal suppression in patients treated with chronic MEGACE therapy. Therefore, the possibility of adrenal insufficiency should be considered in any patient receiving or being withdrawn from chronic MEGACE therapy who presents with symptoms and/or signs suggestive of hypoadrenalism (eg, hypotension, nausea, vomiting, dizziness, or weakness) in either the stressed or non-stressed state. Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. Failure to recognize inhibition of the hypothalamic-pituitary-adrenal axis may result in death. Finally, in patients who are receiving or being withdrawn from chronic MEGACE therapy, consideration should be given to the use of empiric therapy with stress doses of a rapidly acting glucocorticoid in conditions of stress or serious intercurrent illness (eg, surgery, infection).

Adverse reactions cross-check#

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Adverse reactions sections page 1 of 2 · 5 matching rows.

adverse reactions

ADVERSE REACTIONS 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 Trial 1 (N=236) Trial 2 (N=87) Open Label Trial Megestrol Acetate, mg/day No. of Patients Placebo 0 N=34 100 N=68 400 N=69 800 N=65 Placebo 0 N=38 800 N=49 1200 N=176 Diarrhea 15 13 8 15 8 6 10 Impotence 3 4 6 14 0 4 7 Rash 9 9 4 12 3 2 6 Flatulence 9 0 1 9 3 10 6 Hypertension 0 0 0 8 0 0 4 Asthenia 3 2 3 6 8 4 5 Insomnia 0 3 4 6 0 0 1 Nausea 9 4 0 5 3 4 5 Anemia 6 3 3 5 0 0 0 Fever 3 6 4 5 3 2 1 Libido Decreased 3 4 0 5 0 2 1 Dyspepsia 0 0 3 3 5 4 2 Hyperglycemia 3 0 6 3 0 0 3 Headache 6 10 1 3 3 0 3 Pain 6 0 0 2 5 6 4 Vomiting 9 3 0 2 3 6 4 Pneumonia 6 2 0 2 3 0 1 Urinary Frequency 0 0 1 2 5 2 1 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 Digestive System: constipation, dry mouth, hepatomegaly, increased salivation and oral moniliasis Hemic and Lymphatic System: leukopenia Metabolic and Nutritional: LDH increased, edema and peripheral edema Nervous System: paresthesia, confusion, convulsion, depression, neuropathy, hypesthesia and abnormal thinking Respiratory System: dyspnea, cough, pharyngitis and lung disorder Skin and Appendages: alopecia, herpes, pruritus, vesiculobullous rash, sweating and skin disorder Special Senses: amblyopia Urogenital System: albuminuria, urinary incontinence, urinary tract infection and gynecomastia Postmarketing Postmarketing reports associated with MEGACE Oral Suspension include thromboembolic phenomena including thrombophlebitis and pulmonary embolism, and glucose intolerance (see WARNINGS and PRECAUTIONS ).

adverse reactions

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 Trial 1 (N=236) Trial 2 (N=87) Open Label Trial Megestrol Acetate, mg/day No. of Patients Placebo 0 N=34 100 N=68 400 N=69 800 N=65 Placebo 0 N=38 800 N=49 1200 N=176 Diarrhea 15 13 8 15 8 6 10 Impotence 3 4 6 14 0 4 7 Rash 9 9 4 12 3 2 6 Flatulence 9 0 1 9 3 10 6 Hypertension 0 0 0 8 0 0 4 Asthenia 3 2 3 6 8 4 5 Insomnia 0 3 4 6 0 0 1 Nausea 9 4 0 5 3 4 5 Anemia 6 3 3 5 0 0 0 Fever 3 6 4 5 3 2 1 Libido Decreased 3 4 0 5 0 2 1 Dyspepsia 0 0 3 3 5 4 2 Hyperglycemia 3 0 6 3 0 0 3 Headache 6 10 1 3 3 0 3 Pain 6 0 0 2 5 6 4 Vomiting 9 3 0 2 3 6 4 Pneumonia 6 2 0 2 3 0 1 Urinary Frequency 0 0 1 2 5 2 1 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 Digestive System: constipation, dry mouth, hepatomegaly, increased salivation and oral moniliasis Hemic and Lymphatic System: leukopenia Metabolic and Nutritional: LDH increased, edema and peripheral edema Nervous System: paresthesia, confusion, convulsion, depression, neuropathy, hypesthesia and abnormal thinking Respiratory System: dyspnea, cough, pharyngitis and lung disorder Skin and Appendages: alopecia, herpes, pruritus, vesiculobullous rash, sweating and skin disorder Special Senses: amblyopia Urogenital System: albuminuria, urinary incontinence, urinary tract infection and gynecomastia

adverse reactions

Postmarketing Postmarketing reports associated with MEGACE Oral Suspension include thromboembolic phenomena including thrombophlebitis and pulmonary embolism, and glucose intolerance (see WARNINGS and PRECAUTIONS ).

adverse reactions table

<table ID="_RefID0ETIAE" width="100%" cellpadding="0.1pt"> <caption>ADVERSE EVENTS</caption> <colgroup> <col width="20%"/> <col width="11%"/> <col width="11%"/> <col width="11%"/> <col width="11%"/> <col width="11%"/> <col width="11%"/> <col width="14%"/> </colgroup> <thead> <tr> <th styleCode="Botrule Toprule" colspan="8" valign="top" align="center"> <content styleCode="bold">% of Patients Reporting</content> </th> </tr> <tr> <th styleCode="Toprule" valign="top" align="left"/> <th styleCode="Lrule Rrule Toprule" colspan="4" valign="bottom" align="center"> <content styleCode="bold">Trial 1</content> <content styleCode="bold">(N=236)</content> </th> <th styleCode="Lrule Rrule Toprule" colspan="2" valign="bottom" align="center"> <content styleCode="bold">Trial 2</content> <content styleCode="bold">(N=87)</content> </th> <th styleCode="Lrule Toprule" valign="bottom" align="center"> <content styleCode="bold">Open</content> <content styleCode="bold">Label Trial</content> </th> </tr> <tr> <th styleCode="Botrule" valign="top" align="left"> <content styleCode="bold">Megestrol Acetate,</content> <content styleCode="bold">mg/day</content> <content styleCode="bold">No. of Patients</content> </th> <th styleCode="Botrule Lrule" valign="bottom" align="center"> <content styleCode="bold">Placebo</content> <content styleCode="bold">0</content> <content styleCode="bold">N=34</content> </th> <th styleCode="Botrule" valign="bottom" align="center"> <content styleCode="bold">100</content> <content styleCode="bold">N=68</content> </th> <th styleCode="Botrule" valign="bottom" align="center"> <content styleCode="bold">400</content> <content styleCode="bold">N=69</content> </th> <th styleCode="Botrule Rrule" valign="bottom" align="center"> <content styleCode="bold">800</content> <content styleCode="bold">N=65</content> </th> <th styleCode="Botrule" valign="bottom" align="center"> <content styleCode="bold">Placebo</content> <content styleCode="bold">0</content> <content styleCode="bold">N=38</content> </th> <th styleCode="Botrule Rrule" valign="bottom" align="center"> <content styleCode="bold">800</content> <content styleCode="bold">N=49</content> </th> <th styleCode="Botrule" valign="bottom" align="center"> <content styleCode="bold">1200</content> <content styleCode="bold">N=176</content> </th> </tr> </thead> <tbody> <tr> <td styleCode="Toprule" valign="top"> <paragraph>Diarrhea</paragraph> </td> <td styleCode="Lrule Toprule" valign="top" align="center"> <paragraph>15</paragraph> </td> <td styleCode="Toprule" valign="top" align="center"> <paragraph>13</paragraph> </td> <td styleCode="Toprule" valign="top" align="center"> <paragraph>8</paragraph> </td> <td styleCode="Rrule Toprule" valign="top" align="center"> <paragraph>15</paragraph> </td> <td styleCode="Toprule" valign="top" align="center"> <paragraph>8</paragraph> </td> <td styleCode="Rrule Toprule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td styleCode="Toprule" valign="top" align="center"> <paragraph>10</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Impotence</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>6</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>14</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>7</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Rash</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>9</paragraph> </td> <td valign="top" align="center"> <paragraph>9</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>12</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>6</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Flatulence</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>9</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>1</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>9</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>10</paragraph> </td> <td valign="top" align="center"> <paragraph>6</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Hypertension</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>8</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Asthenia</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>8</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>5</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Insomnia</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>1</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Nausea</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>9</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>5</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>5</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Anemia</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>5</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Fever</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>5</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>1</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Libido Decreased</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>5</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>1</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Dyspepsia</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>5</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>4</paragraph> </td> <td valign="top" align="center"> <paragraph>2</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Hyperglycemia</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>6</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Headache</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>10</paragraph> </td> <td valign="top" align="center"> <paragraph>1</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Pain</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>5</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Vomiting</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>9</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>4</paragraph> </td> </tr> <tr> <td valign="top"> <paragraph>Pneumonia</paragraph> </td> <td styleCode="Lrule" valign="top" align="center"> <paragraph>6</paragraph> </td> <td valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td valign="top" align="center"> <paragraph>3</paragraph> </td> <td styleCode="Rrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td valign="top" align="center"> <paragraph>1</paragraph> </td> </tr> <tr> <td styleCode="Botrule" valign="top"> <paragraph>Urinary Frequency</paragraph> </td> <td styleCode="Botrule Lrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Botrule" valign="top" align="center"> <paragraph>0</paragraph> </td> <td styleCode="Botrule" valign="top" align="center"> <paragraph>1</paragraph> </td> <td styleCode="Botrule Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td styleCode="Botrule" valign="top" align="center"> <paragraph>5</paragraph> </td> <td styleCode="Botrule Rrule" valign="top" align="center"> <paragraph>2</paragraph> </td> <td styleCode="Botrule" valign="top" align="center"> <paragraph>1</paragraph> </td> </tr> </tbody> </table>

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.