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Related to Megace: Megace ES


trademark for a preparation of megestrol acetate, a steroid used as a palliative antineoplastic agent and in treatment of anorexia and cachexia.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

megestrol acetate

Apo-Megestrol (CA), Megace, Megace ES, Megace-OS (CA), Nu-Megestrol

Pharmacologic class: Hormone

Therapeutic class: Progestin, antineoplastic, appetite stimulant

Pregnancy risk category D (tablets), X (suspension)


Unknown. Thought to suppress growth of progestin-sensitive breast and endometrial tumors by inhibiting pituitary and adrenal function.


Oral suspension: 40 mg/ml

Oral suspension (concentrate): 625 mg/5 ml

Tablets: 20 mg, 40 mg

Indications and dosages

Breast cancer

Adults: 160 mg/day P.O. given as 40 mg P.O. q.i.d.

Endometrial cancer

Adults: 40 to 320 mg/day P.O. in divided doses

Anorexia, cachexia, or unexplained significant weight loss in AIDS patients

Adults: 800 mg (oral suspension only) P.O. daily, or 625 mg (oral suspension concentrate) P.O. daily

Off-label uses

• Endometriosis, endometrial hyperplasia

• Prostatic hypertrophy

• Contraception


• Hypersensitivity to drug or its components

• Known or suspected pregnancy (suspension only)


Use cautiously in:

• diabetes mellitus, severe hepatic disease, renal disease, cardiovascular disease, seizure disorders, cerebral hemorrhage, migraine, asthma, undiagnosed vaginal bleeding, depression

• history of thrombophlebitis

• breastfeeding.


• Give with meals if GI upset occurs.

Adverse reactions

CNS: headache, insomnia, drowsiness, asthenia, confusion, neuropathy, hyperesthesia, abnormal thinking, paresthesias, depression, seizures

CV: hypertension, chest pain, thrombophlebitis, deep vein thrombosis

EENT: amblyopia, retinal thrombosis, pharyngitis

GI: nausea, vomiting, constipation, abdominal pain, flatulence, dyspepsia, dry mouth, increased salivation, oral candidiasis

GU: breast tenderness, breakthrough bleeding, decreased libido

Hematologic: anemia, leukopenia

Hepatic: hepatomegaly

Metabolic: hyperglycemia

Musculoskeletal: carpal tunnel syndrome, back pain

Respiratory: dyspnea, cough, pneumonia, pulmonary embolism

Skin: alopecia, rash, pruritus, sweating

Other: edema, fever, weight gain, herpes infection


Drug-diagnostic tests. Lactate dehydrogenase: increased level

Patient monitoring

Watch for signs and symptoms of thromboembolic disorders.

Stay alert for visual disturbances, headache, abdominal pain, and hepatomegaly.

• Monitor glucose level in diabetic patients.

Patient teaching

• Inform patient that drug may cause back or abdominal pain, headache, nausea, vomiting, or breast tenderness.

Tell patient to immediately report pain, swelling or redness of lower legs, chest or back pain, or shortness of breath.

• Advise patient to contact prescriber if adverse effects become pronounced or if other troublesome signs or symptoms occur.

• Urge patient to use reliable contraception.

Instruct patient to immediately report suspected pregnancy.

• Caution female patient to avoid breastfeeding.

• Advise diabetic patient to monitor blood glucose level.

• As appropriate, review all other significant and life-threatening adverse reactions and interactions, especially those related to the tests mentioned above.

McGraw-Hill Nurse's Drug Handbook, 7th Ed. Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved

megestrol acetate

A synthetic progestin/progestational anti-androgen that blocks oestrogenic effects, androgen production and androgen-mediated activity, reducing serum gonadotropin and testosterone. It reduces hot flushes by 85% in menopausal women and androgen-deprived men compared to 20% in placebo group.

Megestrol acetate is used to manage weight loss and anorexia in patients with AIDs and breast, endometrial and prostate cancer. In combination with oestradiol, it maintains castrate levels of testosterone in patients with metastatic prostate cancer.

Adverse effects
Dysmenorrhoea, chest pain, depression, oedema in hands and feet, brown spots on skin, hirsutism, breast tenderness, hypertension, venous thrombosis.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Megestrol acetate, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


A brand name for MEGESTROL.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Patient discussion about Megace

Q. What do you think are the chances of an 85 year old lady that gained a lot of weight recently to lose it? She takes hormones (megace) for cancer treatment which make her hungry. She gained about 20 Kilos in the last two years. She needs to lose it. Any ideas what is the best way to handle this problem and where can I find a good dietitian that can come to her place and support her. She lives in Jerusalem, Israel.

A. Hi Michal,I have done a lot of reading and watched some movies here at this website Eating lots of food isn't so bad if you eat the rite food.Dr Day had cancel and refused treatment because she is a Doctor and knows probably more about treatment than most.She has info for sale But has alot info at her site including videos.May this could help and she might be able to get off the drug too and end up become healthy.Take care

More discussions about Megace
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References in periodicals archive ?
The company said the Megestrol Acetate Oral Suspension is the generic version of MegaceES by Strativa Pharmaceuticals, a division of Par Pharmaceutical Inc.
Efficacy of megestrol acetate (megace) in the treatment of patients with early endometrial adenocarcinoma: our experiences with 21 patients.
A new oral formulation of megestrol acetate has recently become commercially available, known as Megace ES.
Some people may experience side effects associated with Megace ES that include impotence, passing gas, rash, high blood pressure, fever, decreased libido, insomnia, upset stomach, and elevated blood sugar.
Only 1 appetite stimulate, megestrol acetate oral suspension (Megace) at 400 mg or 800 mg daily, has been studied in this population.
(16) Energy intake--NA No better effect 2004 Protein intake--NA of EPA USA Weight--[up arrow] 10%: EPA 6% v supplement Meg + c 18% v Meg + EPA 11% Ns compared to EPA v Meg + c P = 0.004 megace on Any [up arrow]: EPA 37% Meg 39% outcome Outcome Meg + EPA 45% ns of 10% weight LBM--NA gain in cancer Functional capacity--NA patients Quality of life--ns unrealistic Survival--ns Other--appetite [up arrow] EPA 63 Meg 69 Meg + epa 66 Moses et al.
Instead, these patients need an appetite stimulant, such as Megace, or Marinol--and then a separate assessment of whether there is a lack of lean body mass.
Hormone therapies used to treat male breast cancer include the drugs tamoxifen and megace. Tamoxifen is an antiestrogen drug that works by blocking estrogen in the breast, thereby slowing the growth and reproduction of breast cancer cells that depend on estrogen for survival.
* Megestrol acetate (Megace, Ovarian), Mead Johnson Laboratories
In a phase III trial of 769 postmenopausal women whose cancers had spread despite tamoxifen, investigational exemestane tablets (Aromasin, Pharmacia & Upjohn) showed superior activity over megestrol acetate (Megace, Bristol-Myers Squibb).
Because megace, an FDA-approved drug often prescribed for HIV-associated wasting, can cause significant, irregular vaginal bleeding in HIV-infected women, NIAID is planning a trial to assess an alternate drug, nandrolone, in women with HIV-associated weight loss.
In June, the company announced that it filed a Paragraph IV for the ANDA of Megace ES by Strativa Pharmaceuticals, a division of Par Pharmaceutical Inc.