Megestrol
About Megestrol
Megestrol is a tablet prescribed to treat severe appetite loss and significant weight loss in adults. It is primarily used for individuals experiencing advanced health conditions, such as cancer or HIV/AIDS, to help them regain lost body mass. It is also used to manage certain advanced, hormone-sensitive cancers.
To get the best results, you must take Megestrol consistently at the same time every day, exactly as your doctor directs. You can take this tablet with or without food, but taking it with meals can help prevent stomach upset. Incorporating high-calorie foods and light physical activity into your daily routine can also help boost your overall progress.
While taking this medication, you may notice mild side effects like a larger appetite, weight gain, or slight fluid retention. However, you must contact your doctor immediately if you experience serious issues, such as sudden shortness of breath, chest pain, or painful swelling in your legs.
Talk to your doctor before starting Megestrol if you have a history of blood clots, diabetes, kidney issues, or adrenal gland problems. Do not take this medicine if you are pregnant, as it can cause serious harm to an unborn baby.
This medicine can interact with other treatments. Smoking is an independent risk factor for blood clots and may add to the clotting risk already associated with Megestrol, rather than directly interacting with the medicine. If you smoke, drink alcohol, are pregnant, breastfeeding, or are an older adult, discuss your individual risks and treatment needs with your doctor.
Uses of Megestrol
Medicinal Benefits
Megestrol helps improve appetite and support weight gain in people experiencing significant weight loss or wasting associated with certain medical conditions.
- Stimulates Appetite: Helps increase the desire to eat, making it easier to consume enough calories and nutrients.
- Supports Weight Gain: May promote weight gain in people with severe, unintended weight loss or reduced appetite.
- Improves Nutritional Intake: Better appetite may help increase daily calorie and nutrient consumption, supporting overall nutritional status.
- Supports Physical Strength: Regaining weight may help improve energy and reduce weakness associated with severe weight loss, although the weight gained may include body fat rather than muscle.
- Supports Daily Functioning: Improved appetite and nutritional intake may help some patients manage daily activities and ongoing medical treatment more comfortably.
Directions for Use
- Take Megestrol with or without food as advised by your doctor.
- Adhere to your doctor’s guidance regarding the dosage and timing of this medication for optimal effectiveness.
- Swallow Megestrol as a whole with a glass of water.
- Do not crush, chew, or break it.
Storage
Side Effects of Megestrol
Common Side Effects (Usually mild)
- Increased appetite and weight gain
- Mild fluid retention or swelling in your ankles and feet
- Nausea or mild stomach discomfort
- Irregular vaginal bleeding or spotting
Serious Side Effects (Consult your doctor right away)
- Signs of a blood clot, such as sudden chest pain, shortness of breath, coughing up blood, or warm, painful swelling in one leg
- Signs of high blood sugar, such as extreme thirst, frequent urination, dry mouth, or a fruity breath odour
- Signs of an allergic reaction, including skin rash, itching, hives, or swelling of the face, lips, tongue, or throat
- Signs of adrenal gland issues, like severe dizziness, extreme fatigue, fainting, or muscle weakness
Medicines Containing this Salt
View AllDrug Warnings
- Do Not Stop Suddenly: Do not stop Megestrol or reduce the dose on your own, especially after prolonged use. Your doctor may need to reduce the dose gradually because sudden discontinuation can contribute to adrenal gland problems.
- Monitor Blood Sugar: If you have diabetes, check your blood glucose as advised because Megestrol may raise blood sugar levels and affect diabetes control.
- Watch for Signs of Blood Clots: Contact your doctor urgently if you develop unexplained pain, swelling, redness, or warmth in one leg. Seek immediate medical help for sudden chest pain, coughing up blood, or difficulty breathing.
- Prevent Pregnancy During Treatment: Use effective contraception as advised by your doctor. Discuss suitable contraceptive options rather than assuming a non-hormonal method is required in every case.
- Inform Healthcare Providers: Tell your doctor, dentist, surgeon, or anaesthetist that you are taking Megestrol before any medical or dental procedure.
Drug Interactions
The following medicines may interact with Megestrol and require closer monitoring or treatment adjustments:
- Corticosteroids: Medicines such as prednisone may add to effects on the adrenal glands or blood sugar control, particularly during prolonged treatment.
- Diabetes Medicines: Megestrol may raise blood glucose levels, which can reduce the effectiveness of insulin or oral blood sugar-lowering medicines and require adjustment of diabetes treatment.
- Anticoagulants: Megestrol may alter the effect of blood-thinning medicines such as warfarin. Your doctor may need to monitor blood-clotting tests more closely and adjust treatment if necessary.
Drug-Drug Interactions Checker List:
Safety Advice
Alcohol
cautionAlcohol consumption may increase the risk of side effects and worsen the disease. So, avoid alcohol consumption while using this medicine.
Pregnancy
unsafeMegestrol should not be used in pregnant women as it may cause birth defects in the unborn baby. Women who are of childbearing potential should obtain a negative pregnancy test before using this medicine.
Breast Feeding
unsafeMegestrol is not recommended for use in breastfeeding as it may pass into breastmilk and harm your infant.
Driving
safe if prescribedMegestrol may not affect your ability to drive.
Liver
cautionMegestrol should be used with caution if you have liver disease. Your doctor may adjust the dose or prescribe a suitable alternative based on your condition.
Kidney
cautionMegestrol should be used with caution if you have kidney disease. Your doctor may adjust the dose or prescribe a suitable alternative based on your condition.
Children
unsafeMegestrol is not recommended for use in children below 12 years of age.
Habit Forming
Diet & Lifestyle Advise
- Eat Small, Frequent Meals: Have 5 to 6 smaller meals throughout the day if large meals feel difficult to manage.
- Choose Nutrient-Dense Foods: Include energy- and protein-rich foods such as nuts, seeds, eggs, avocados, dairy products, pulses, and lean proteins according to your dietary needs.
- Avoid Filling Up on Fluids Before Meals: If early fullness is a problem, limit large amounts of fluid immediately before or during meals while maintaining adequate hydration throughout the day.
- Stay Active as Advised: If approved by your doctor, include gentle physical activity or resistance exercises to help maintain strength and muscle function.
Special Advise
- If you are undergoing surgery, inform your doctor that you are taking Megestrol as it may interfere with healing.
- Please do not stop taking Megestrol without discussing it with your doctor.
- Your doctor may advise you to monitor blood pressure regularly and take blood tests to evaluate liver and kidney function while using Megestrol.
Patients Concern
Disease/Condition Glossary
Breast cancer: It is a type of cancer that develops in breast cells. Breast cancer may form in lobules (glands that produce milk), ducts of the breast (the pathway that brings milk from glands to the nipple), fatty tissue, or the fibrous connective tissue within the breast. Symptoms include a lump in the breast or tissue thickening which feels different from the normal surrounding tissues, breast pain, redness, swelling, nipple discharge other than breast milk, bloody discharge, unexplained change in shape, size, or appearance of the breast, peeling, flaking or scaling of the skin, and a lump or swelling under the arm. The risk factors of breast cancer are increasing age, family history of breast cancer, and obesity.
Endometrial cancer: It is a type of cancer in which the endometrium (lining of the womb or uterus) is affected. It is usually seen in women aged 55 years or older. Symptoms include bleeding between periods, pelvic pain, and pain during sexual intercourse. Endometrial cancer risk factors are increasing age, obesity, never having been pregnant, family history of cancer, and diabetes. This condition is not life-threatening when diagnosed and treated early.
FAQs
Megestrol is used for the treatment of Breast cancer and Endometrial cancer.
Megestrol contains Megestrol, which works similarly to the female hormone progesterone. It interferes with the production or action of hormones involved in cancer growth. This effect helps to slow down the progression of cancer and reduce the symptoms associated with cancer.
Megestrol may increase appetite and cause weight gain. You may gain weight, especially in the waist and the upper back. This effect usually decreases after discontinuing the treatment. However, opt for a healthy diet, exercise regularly, and maintain a normal weight while using this medicine.
Megestrol may not affect fertility but may disrupt the menstrual cycle (periods). Though this medicine affects periods, you should take reliable contraceptive measures while using Megestrol to prevent pregnancy as it may cause harmful effects to the unborn baby.
Megestrol may increase blood glucose levels, so inform your doctor that you have diabetes before taking this medicine. If prescribed, you should monitor blood glucose levels regularly during the treatment.
No. Megestrol is not a contraceptive and should not be used to prevent pregnancy. Although it may disrupt the menstrual cycle, you can still become pregnant. Use effective contraception during treatment and discuss suitable birth control options with your doctor.
It is recommended that you complete the course of Megestrol even if you feel better. To treat your condition effectively, continue taking Megestrol for as long as your doctor has prescribed it.
If you miss a dose of Megestrol, take it as soon as you remember. If it is almost time for the next dose, skip the missed dose and resume your regular schedule. Do not take twice the dose to make up for a missed dose.
Take Megestrol at around the same time(s) every day. Follow the directions on your prescription label or as directed by the physician.
Megestrol is a hormonal therapy drug used to treat breast and womb cancer.
No, it is not recommended to use while pregnant. Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking megestrol, call your doctor immediately. Megestrol may harm the foetus.
No, do not refrigerate. It should be stored in a cool and dry place away from sunlight.
No, there is no clinically proven indication to treat hot flushes with Megestrol.
The common side-effects of Megestrol are an increase in appetite, weight gain, shortness of breath, hot flushes (reddening of the face and neck), high blood pressure, increased blood sugar levels, a rounded face, constipation, and swelling of a vein due to a blood clot. If any of these side effects persist or get worse, inform your doctor immediately.
Yes, mild swelling in the ankles, feet, or hands due to fluid retention is a known side effect of this medicine. If the swelling becomes severe or is accompanied by shortness of breath, talk to your doctor right away.
There is no well-established direct interaction between alcohol and Megestrol. However, alcohol may worsen certain side effects or add to other health risks depending on your medical condition and individual risk factors, including factors that affect blood clot risk. It is best to avoid or strictly limit alcohol while taking this medicine. Ask your doctor or pharmacist whether alcohol is safe for you during treatment.

