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Glipizide oral tablet side effects

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More common side effects Mild side effectsSerious side effectsSide effects in detailFAQCouponWarningsAsk your doctor
Glipizide oral tablets are prescribed to manage blood sugar in adults with type 2 diabetes. They belong to a group of drugs called sulfonylureas. Glipizide may cause mild or serious side effects, including hypoglycemia (low blood sugar), allergic reaction, and nausea.
Medically reviewed by Alex Brewer, PharmD, MBA
Updated on

For managing blood sugar in adults with type 2 diabetes, this drug is used together with diet and exercise.

Glipizide oral tablet is a generic medication. It doesn’t come in a brand-name version. Glipizide also comes as an extended-release (ER) oral tablet, which is a generic version of Glucotrol XL. (Extended release means the drug is released into the body slowly over time.)

This article describes the possible side effects of glipizide oral tablet and glipizide ER oral tablet. You’ll also find information on cost savings and coupon options for glipizide.

You can explore this overview article to learn more about glipizide oral tablets, including the drug’s uses, dosage, ways to save on cost, and more.

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More common side effects of glipizide

Glipizide oral tablets may cause mild or serious side effects. Below are some of the more common side effects of this medication.

Commonly reported side effects of glipizide oral tablet and glipizide ER oral tablet include:

* To learn more about this side effect, see the “Side effects of glipizide in detail” section below.

Mild side effects of glipizide

Glipizide may cause certain mild side effects. Most often, mild side effects are temporary and can be easily managed. Tell your doctor or pharmacist if you have side effects that don’t go away or become bothersome.

Mild side effects that occurred in studies of glipizide oral tablet and glipizide ER oral tablet include:

* To learn more about this side effect, see the “Side effects of glipizide in detail” section below.

Glipizide may cause other mild side effects than those listed above. For details, see the prescribing information for glipizide oral tablet and glipizide ER oral tablet.

Serious side effects of glipizide

Glipizide may cause certain serious side effects. If you have any serious side effects from glipizide, call your doctor right away. But if you think you’re having a medical emergency or your side effects feel life threatening, take immediate action. Call 911 or your local emergency number, or go to the nearest emergency room.

After the Food and Drug Administration (FDA) approves a drug, it tracks and reviews side effects of the medication. Visit MedWatch’s website if you’d like to notify the FDA about a side effect you’ve had with glipizide oral tablets.

Serious side effects that occurred in studies of glipizide oral tablet and glipizide ER oral tablet include:

* SIADH was not reported in studies of glipizide. But it was reported after glipizide became available to prescribe.
† To learn more about this side effect, see the “Side effects of glipizide in detail” section below.

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Side effects of glipizide in detail

Below you’ll find details on some of the side effects of glipizide oral tablets.

Hypoglycemia

Glipizide lowers your blood sugar. Hypoglycemia was a common side effect reported in studies of glipizide oral tablet and glipizide ER oral tablet. With this condition, blood sugar is too low.

Low blood sugar is typically defined as less than 70 milligrams (mg) per deciliter (dL). However, your usual blood sugar range may be specific to your body. Talk with your doctor about how low is too low for your blood sugar.

Symptoms of low blood sugar include:

  • hunger
  • fast heart rate
  • shakiness
  • irritability
  • fatigue (low energy)
  • sweating
  • difficulty concentrating

Consider keeping a symptom journal, in which you can track how your body responds to low blood sugar. This can help you quickly recognize the symptoms when they happen.

Ways to manage

There are ways to help avoid hypoglycemia and manage it if it occurs.

Ways to help prevent hypoglycemia include:

  • consistently monitoring your blood sugar levels at regular times that work for your lifestyle
  • avoiding skipping meals and snacks
  • avoiding alcohol consumption, if applicable
  • asking your doctor whether any other medications you take cause low blood sugar
  • talking with your doctor about ways to avoid low blood sugar levels while you sleep

If you have a low blood sugar reading on your blood glucose monitor, follow these steps:

  1. Consume 15 grams (g) to 20 g of glucose (a type of sugar). You can do this by:
    • drinking 1/2 cup of juice or non-diet soda
    • taking 3–4 glucose tablets
    • eating 1 tablespoon of sugar or honey
  2. Check your blood sugar level 15 minutes after consuming the glucose.
  3. If your level is not above 70 mg/dL, consume another 15 g to 20 g of glucose. Repeat these steps until your glucose is above 70 mg/dL.
  4. Eat a full meal or a small snack if your next meal is over an hour away.

Talk with your doctor about rescue medication, such as glucagon, that can be used for low blood sugar emergencies.

Very low blood sugar is a medical emergency, and it may need to be treated in a hospital. If you’re with someone unconscious from low blood sugar, seek emergency medical attention right away.

Nausea

Nausea was a common side effect reported in studies of glipizide oral tablet and glipizide ER oral tablet. When you feel nauseous, it can be hard to eat or concentrate. Nausea from glipizide is usually mild and temporary.

Ways to manage

Nausea might go away on its own in a few days. If you have mild nausea, there are several ways to treat it. They include:

  • eating a simple, bland diet
  • taking an over-the-counter nausea medication, if your doctor or pharmacist says it’s appropriate for you to do so
  • avoiding other things that may worsen nausea, such as unpleasant smells

If your nausea lasts for more than a few days or prevents you from eating, talk with your doctor. They may have suggestions on ways to manage it.

If nausea is difficult to manage, your doctor may prescribe a medication other than glipizide.

Allergic reaction

Studies of glipizide oral tablet and glipizide ER oral tablet showed that for some people, glipizide can cause an allergic reaction.

Symptoms can be mild or serious and may include:

  • itchiness
  • skin rash
  • swelling under the skin, usually affecting eyelids, lips, hands, or feet
  • swelling of the mouth, tongue, or throat, which can make it hard to breathe
  • flushing (temporary warmth, redness, or deepening of skin color)

Ways to manage

For mild allergic reaction symptoms, such as a mild rash, call your doctor right away. They may recommend treatments to help manage your symptoms. They’ll also let you know whether you should keep taking the medication.

For severe allergic reaction symptoms, such as swelling or trouble breathing, call 911 or your local emergency number right away. These symptoms require immediate medical care because they can become life threatening. If you’ve had a serious allergic reaction to glipizide, your doctor may recommend that you take a different medication instead.

Common questions about side effects of glipizide

Here are answers to some common questions about side effects of glipizide oral tablets. If you have other questions, talk with your doctor or pharmacist.

If I stop taking glipizide 5-mg tablets, will I experience certain side effects?

Maybe. You could experience hyperglycemia (high blood sugar) if you stop taking glipizide. Keep in mind that glipizide is prescribed to manage blood sugar levels in people with type 2 diabetes.

Hyperglycemia is a possible side effect of stopping any medication that helps manage blood sugar. With glipizide oral tablets, this side effect can occur if you stop taking a dose of 2.5 milligrams (mg), 5 mg, or 10 mg.

Symptoms of hyperglycemia include:

  • increased hunger
  • increased thirst
  • frequent urination
  • blurred vision
  • slow wound healing
  • weakness

Talk with your doctor before decreasing doses or stopping any medications. Do not stop taking glipizide unless your doctor recommends it. If a medication is causing side effects, your doctor may suggest other treatment options.

Will older adults experience different side effects of glipizide than younger adults?

No, older adults will not experience different side effects from taking glipizide. However, older adults may be at higher risk of side effects from glipizide. The term “older adults” generally refers to people ages 65 years and older.

Your body relies on your liver and kidneys to metabolize (break down and clear) glipizide. Older adults sometimes have decreased liver and kidney function, so glipizide can build up in the body.

More glipizide in the blood can lead to side effects from the drug. Due to this risk, doctors usually start by prescribing a 2.5-mg dose of glipizide for older adults. Doctors will monitor for side effects and increase the dose slowly.

If you have questions about your risk of side effects from glipizide given your age, talk with your doctor.

Can I take glipizide with metformin? If so, does taking them together cause different side effects?

Yes, glipizide and metformin are often taken together. A combination drug is available that contains both glipizide and metformin.

Some side effects of metformin and glipizide are the same, such as constipation and gas. Other side effects only happen with metformin, such as lactic acidosis. Learn more about metformin’s side effects in this article.

You may take more than one medication for diabetes. Talk with your doctor about whether a combination of drugs will work best for you.

Is weight gain or weight loss a side effect of glipizide?

Maybe. Weight gain is a possible side effect of glipizide. Dizziness, another side effect of glipizide, could make it difficult to exercise. And this could also lead to weight gain.

However, some side effects of glipizide could lead to weight loss. For example, vomiting and nausea could lead to decreased appetite and eating less.

Talk with your doctor about ways to maintain a body weight that’s healthy for you.

How do side effects of glipizide ER oral tablet compare with those of glipizide oral tablet?

Side effects are similar with both forms of glipizide. Glipizide comes as an oral tablet and an extended-release (ER) oral tablet.

For example, side effects for both forms include:

* To learn more about this side effect, see the “Side effects of glipizide in detail” section above.

The differences between side effects are related to how the extended-release form acts in the body. The ER tablet is taken once in the morning and releases the drug slowly over time. The oral tablet, on the other hand, is an immediate-release tablet. This means it releases the entire glipizide dose at once. Compared to the oral tablet, the ER tablet is:

  • more likely to get stuck in a narrowing of the bowel
  • less likely to cause low blood sugar overnight

Talk with your doctor about ways to manage side effects of the different forms of glipizide.

Does glipizide cause long-term side effects?

Sometimes. Most glipizide side effects can be managed or will resolve on their own if you stop taking the drug. However, some serious side effects of glipizide can have long-term effects.

Long-term side effects could mean side effects that start during treatment or after treatment ends. They can last a long time, such as a few months or years.

Syndrome of inappropriate antidiuretic hormone (SIADH) is a rare but serious side effect of glipizide. It can start during glipizide treatment and can require long-term treatment. However, the condition may also go away if you stop taking glipizide.

If you’d like to know more about the long-term side effects of glipizide, talk with your doctor.

Coupon for glipizide

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Note: Optum Perks coupons cannot be used with any insurance copays or benefits.

Warnings for glipizide

Below are some factors you may want to discuss with your doctor before taking glipizide oral tablets.

Warnings

It may not be safe for you to take glipizide if you have specific health conditions. These are sometimes called drug-condition interactions. Other things may also affect whether glipizide is a safe treatment option for you.

Before taking glipizide, tell your doctor about your health and medications you take. Things to consider include those listed below.

Temporary conditions that increase blood sugar. Some conditions increase blood sugar for a limited amount of time. These include:

  • fever
  • injury
  • surgery
  • infection

If you have a temporary condition that makes your blood sugar level higher, your doctor may adjust your glipizide dose. They may also prescribe another drug that lowers blood sugar, such as insulin, for a short time. Talk with your doctor about how to prepare for these situations.

Taking certain medications. Some medications may increase your risk of side effects from glipizide. If you already take a drug that interacts with glipizide or increases the risk of glipizide side effects, talk with your doctor. They may lower your dose of one of the medications or prescribe a different drug.

Drugs that can increase the effects of glipizide and cause low blood sugar include:

Drugs that can decrease the effects of glipizide and cause high blood sugar include:

This isn’t a complete list of all medications that interact with glipizide. Talk with your doctor about all the medications you take before you start glipizide.

G6PD deficiency. If you have an enzyme deficiency called glucose-6-phosphate dehydrogenase (G6PD) deficiency, your doctor may not prescribe glipizide for you. Glipizide may increase your risk of a type of red blood cell condition called hemolytic anemia.

Liver problems. Glipizide can lead to changes in liver enzymes or cholestasis (a bile duct blockage). If you have liver problems, glipizide could worsen your condition. Talk with your doctor about tests to check your liver function before you start taking glipizide. Depending on the result, they may prescribe a lower dosage or prescribe a different drug.

Kidney problems. Glipizide is metabolized (broken down and cleared) from your body through the kidneys. If your kidney function is low, glipizide could build up in your body. If you have kidney problems, your doctor may prescribe a lower dose of glipizide.

Bowel obstruction. If you have a bowel obstruction (blockage) or a narrowing of the intestine, your doctor may not prescribe glipizide ER oral tablet for you. The ER form has a risk of becoming stuck in an intestine blockage or narrowing.

Allergic reaction. If you’ve had an allergic reaction to glipizide oral tablets or any of its ingredients, your doctor will likely not prescribe this medication. Ask them about other treatment options that may be better for you.

Older adults. Adults ages 65 years and older may have a higher risk of side effects with glipizide. This is usually because of decreased liver and kidney function. If you’re an older adult, talk with your doctor about having tests to check your liver and kidney function before starting glipizide. They may start you on a lower dose of glipizide than usual and monitor your liver or kidney condition.

Glipizide and pregnancy

According to some reports, side effects in newborns are possible when sulfonylurea drugs are taken during pregnancy. Glipizide is in the sulfonylurea drug group. These side effects in newborns included difficulty breathing and hypoglycemia (low blood sugar).

However, having blood sugar that isn’t well managed during pregnancy can cause harm to a pregnant person and a fetus. Talk with your doctor if you’re pregnant or planning a pregnancy. They’ll discuss the risks and benefits of glipizide and other methods of blood sugar management. If you become pregnant while taking glipizide, tell your doctor right away.

Glipizide and breastfeeding

There is not enough information available to make a recommendation about glipizide’s safety during breastfeeding. The benefits of breastfeeding should be weighed with the risk of possible side effects of glipizide.

Talk with your doctor if you’re planning to breastfeed. They can discuss the risks and benefits of taking glipizide while breastfeeding.

Glipizide and alcohol

Glipizide oral tablets are known to interact with alcohol.

Glipizide increases your risk of low blood sugar. Alcohol may also lower blood sugar, so taking glipizide and drinking alcohol can have an additive effect.

Although rare, glipizide and alcohol taken together may lead to a disulfiram reaction. A disulfiram reaction describes a group of symptoms, including:

If you drink alcohol, and you’d like to drink it while taking glipizide oral tablets, talk with your doctor.

What to ask your doctor

This article describes common and serious side effects of glipizide oral tablets. If your doctor prescribes this medication, they can discuss possible side effects with you. Let your doctor know if you have concerns or questions about treatment with this medication.

Here’s a list of some possible questions you may want to ask your doctor:

  • Can blurred vision and muscle pain be symptoms of hypoglycemia from glipizide?
  • If I also take medication for depression, is my risk of glipizide side effects higher?
  • Will kidney damage lead to a higher risk of glipizide side effects?
  • Are other diabetes medications less likely to cause side effects than glipizide?
  • Am I at a high risk of weight-related side effects from glipizide?

Disclaimer: Optum Perks has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

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