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Available Form:   Suspension
Manufacturer name:   Bristol-Myers Squibb
Generic name:   megestrol
Strength:   200mg/5ml

What is Megace OS?

Megace OS (Megestrol) belongs to a group of medications known as progestogens. Megace OS (Megestrol) is used to treat Prostate Cancer because testosterone is needed by prostate cancer cells for growth.

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Megace OS frequently asked questions

Can I Get Same-Day Delivery?

Yes! We do provide same-day delivery in select areas. We do next business day delivery and can also ship overnight as well.

How Much is Shipping Cost for Megace OS in Canada?

Shipping cost for Megace OS to you in Canada is zero. Pocketpills offers FREE shipping anywhere in Canada to help you get access to treatment.

How to get Megace OS delivered to my home?

You could get Megace OS delivered at your doorstep from us in Canada if you ordered prescription medications with a valid prescription. If you are not sure if we deliver to your area, contact us.

How to get Megace OS in Canada for free?

You can get Megace OS for free in Canada if your health insurance provider covers it fully. Contact your provider or us to help you find out if you qualify to get Megace OS for free.

Megace OS How to Take

Megace OS (Megestrol) belongs to a group of medications known as progestogens. Megace OS (Megestrol) is used to treat Prostate Cancer because testosterone is needed by prostate cancer cells for growth. It prevents the release of a hormone required for production of testosterone in the testicles.

Megace OS (Megestrol) also slows the growth of breast and endometrium (lining of the uterus) cancer cells by interfering with other hormones and proteins that are required for growth of the cancer cells. It is also used to treat appetite loss and severe weight or muscle loss in people with cancer or acquired immunodeficiency syndrome (AIDS). It helps these conditions by promoting the production of certain proteins that increase appetite and weight gain.

Megace OS (Megestrol) may be available under multiple brand names and/or in several different forms. Any specific brand name of Megace OS (Megestrol) may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of Megace OS (Megestrol) may not be used for all of the conditions discussed here.

Your doctor may have suggested Megace OS (Megestrol) for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking Megace OS (Megestrol), speak to your doctor. Do not stop taking Megace OS (Megestrol) without consulting your doctor.

Do not give Megace OS (Megestrol) to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take Megace OS (Megestrol) if their doctor has not prescribed it.

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Your medication is delivered directly to you at no added cost. We even offer same-day delivery in select locations.

Megace OS Dosage

The recommended dose depends on the condition being treated and body weight.

For people with prostate cancer, the recommended dose is 120 mg taken as a single daily dose in combination with diethylstilbestrol 0.1 mg.

For people with Breast Cancer, the usual dose is 160 mg daily. This dose may be divided into 4 equal doses of 40 mg.

For people with cancer of the endometrium, the usual dose is 80 mg to 320 mg daily, which can be divided into 40 mg tablets taken 2 to 4 times daily, or 160 mg tablets taken 1 to 2 times daily.

For people with cancer or AIDS and appetite loss, muscle wasting, or significant weight loss, the usual adult dose is 400 mg to 800 mg as a single daily dose. People with AIDS usually use the liquid form of Megace OS (Megestrol). Shake the liquid well before measuring the dose.

The effectiveness of Megace OS (Megestrol) acetate can be assessed after 2 months have passed following the start of therapy.

Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

Megace OS (Megestrol) can be taken with or without food.

Use an oral syringe to measure each dose of the liquid, as it gives a more accurate measurement than household teaspoons.

It is important to take Megace OS (Megestrol) exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

The tablets and liquid should be stored at room temperature in a cool, dry place.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.

Megace OS Side Effects

Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.

The side effects listed below are not experienced by everyone who takes Megace OS (Megestrol). If you are concerned about side effects, discuss the risks and benefits of Megace OS (Megestrol) with your doctor.

The following side effects have been reported by at least 1% of people taking Megace OS (Megestrol). Many of these side effects can be managed, and some may go away on their own over time.

Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.

  • Constipation
  • Diarrhea
  • hair loss
  • increased appetite
  • mild blood pressure increase
  • mood changes
  • nausea or vomiting
  • swelling of the face, ankles, or feet
  • weight gain

Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

  • breast enlargement
  • changes in vaginal bleeding
  • decreased hearing
  • decreased interest or ability in sexual activity
  • Depression
  • filling or rounding out of face
  • hot flushes
  • impotence
  • increased flow of breast milk
  • increased urination
  • loss of appetite
  • mood changes
  • rash
  • shortness of breath
  • symptoms of high blood sugar (e.g., frequent urination, increased thirst, excessive eating, unexplained weight loss, poor wound healing, infections, fruity breath odour)
  • unusual tiredness or weakness

Stop taking the medication and seek immediate medical attention if any of the following occur:

  • signs of Stroke (e.g., sudden or severe headache; sudden loss of coordination; vision changes; sudden slurring of speech; or unexplained weakness, numbness, or pain in arm or leg)

Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking Megace OS (Megestrol).

Automatic Refills

We manage your refills and get in touch with your doctors for prescription renewals so that you always have the medication you need.

Megace OS Available Form

Each mL of lemon-lime flavoured oral suspension contains Megace OS (Megestrol) acetate 40 mg. Nonmedicinal ingredients: anhydrous citric acid, natural and artificial lemon-lime flavour, polyethylene glycol 1450, polysorbate 80, purified water, sodium benzoate, sodium citrate dihydrate, sucrose, and xantham gum.

Megace OS Contraindications

Do not take Megace OS (Megestrol) if you:

  • are allergic to Megace OS (Megestrol) acetate or any ingredients of the medication
  • are or may be pregnant (first 4 months)

Personalized PocketPacks

We sort your medication into clearly labeled, individual packs so you can be sure you're taking the right dose at the right time.

Megace OS Precautions

There may be an interaction between Megace OS (Megestrol) acetate and any of the following:

If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:

  • stop taking one of the medications,
  • change one of the medications to another,
  • change how you are taking one or both of the medications, or
  • leave everything as is.

An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.

Medications other than those listed above may interact with Megace OS (Megestrol). Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.

Megace OS Warnings

Before you begin taking a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should take Megace OS (Megestrol).

Blood Clots: Megace OS (Megestrol) may increase the chance of blood clot formation, which will cause blood flow to organs or to the extremities to be reduced.

If you have a history of clotting, you may be at increased risk of experiencing blood clot-related problems such as Heart Attack, stroke, or clots in the deep veins of your leg. Discuss with your doctor how Megace OS (Megestrol) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Megace OS (Megestrol), and whether any special monitoring is needed.

If you experience symptoms such as sharp pain and swelling in the leg, difficulty breathing, chest pain, blurred vision or difficulty speaking, contact your doctor immediately.

Diabetes: Megace OS (Megestrol) acetate may cause a loss of control of diabetes by increasing blood sugar levels and changing glucose tolerance. If you have diabetes, you may find it necessary to monitor your blood sugar more frequently while using Megace OS (Megestrol).

If you have diabetes or are at risk for developing diabetes, discuss with your doctor how Megace OS (Megestrol) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Megace OS (Megestrol), and whether any special monitoring is needed. You may need to check your blood glucose levels more often.

Kidney Disease: Kidney disease or reduced kidney function may cause Megace OS (Megestrol) to build up in the body, causing side effects. If you have kidney problems, discuss with your doctor how Megace OS (Megestrol) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Megace OS (Megestrol), and whether any special monitoring is needed. Your doctor may want to test your liver function regularly with blood tests while you are taking Megace OS (Megestrol).

Osteoporosis: Long-term use of Megace OS (Megestrol) can increase the risk of osteoporosis (brittle bones). Talk to your doctor about ways to help prevent osteoporosis. Your doctor will monitor your bone density if you take Megace OS (Megestrol) for a long period of time.

Pregnancy: Megace OS (Megestrol) acetate is not recommended for use during the first 4 months of pregnancy. Women should use effective birth control when taking Megace OS (Megestrol). If you become pregnant while taking Megace OS (Megestrol), tell your doctor right away.

Breast-feeding: Megace OS (Megestrol) may pass into breast milk. If you are a breast-feeding mother and are taking Megace OS (Megestrol) acetate, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.

Children: The safety and effectiveness of using Megace OS (Megestrol) have not been established for children.

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Your privacy is important. That's why we send your medication inside a plain delivery box so no one will know what's inside.


All material © 1996-2021 MediResource Inc. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health providers with any questions you may have regarding a medical condition.

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