Specifically, the Food and Drug Administration (FDA) has approved prednisone oral tablets to treat the following conditions, among others:
- certain endocrine problems, such as adrenal insufficiency
- certain cancers, such as leukemia and lymphoma
- certain skin diseases, such as psoriasis
- certain blood disorders, such as autoimmune hemolytic anemia
This article describes possible side effects (also known as adverse effects) of prednisone oral tablets. You’ll also find information on cost savings and coupon options for prednisone.
Prednisone oral tablets are a generic medication. They aren’t available in a brand-name version. Prednisone also comes in a liquid form and as a delayed-release tablet, but these forms aren’t described in this article. To learn more about these forms, talk with your doctor.
You can explore this overview article to learn more about prednisone oral tablets, including all of the drug’s uses, dosages, ways to save on cost, and more.
More common side effects of prednisone
Prednisone 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 prednisone oral tablets include:
- changes in mood or behavior
- fluid buildup
- increased blood sugar level
- increased appetite
- weight gain*
- sleep problems*
* To learn more about this side effect, see the “Side effects of prednisone in detail” section below.
Mild side effects of prednisone
Prednisone may cause certain mild side effects. Usually, 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 of prednisone oral tablets that occurred in studies include:
- belly swelling
- increased appetite
- increased sweating
- changes in your period
- changes in mood or behavior
- muscle weakness or wasting
- nausea or upset stomach
- skin thinning
- slow wound healing
- vertigo (feeling as if you’re swaying or spinning)
- fluid buildup
- weight gain*
- headache*
- sleep problems*
- mild allergic reaction*
* To learn more about this side effect, see the “Side effects of prednisone in detail” section below.
Prednisone oral tablets may cause more mild side effects than those listed above. For details, see the drug’s prescribing information.
Serious side effects of prednisone
Prednisone may cause certain serious side effects. If you have any serious side effects from prednisone oral tablets, 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 a 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 prednisone oral tablets.
Serious side effects of prednisone oral tablets that occurred in studies include:
- adrenal insufficiency (inability of your adrenal glands to produce certain hormones)
- bone fracture (break)
- eye problems, including glaucoma and cataracts
- increased blood pressure
- increased blood sugar level, which may lead to type 2 diabetes
- increased risk of infection
- low potassium level
- mental health conditions, such as depression, psychosis, and personality changes
- osteoporosis (decrease in bone density)
- pancreatitis (swelling of your pancreas)
- seizure
- slowed growth in children
- ulcers (sores) in the stomach or upper part of the small intestine
- Cushingoid state (high level of cortisol hormone)*
- severe allergic reaction†
* For details about this side effect, see “Is ‘moon face’ a side effect of prednisone?” in the “Common questions about side effects of prednisone” section below.
† To learn more about this side effect, see the “Side effects of prednisone in detail” section below.
Common questions about side effects of prednisone
Here are answers to some common questions about side effects of prednisone oral tablets. If you have other questions, talk with your doctor or pharmacist.
How do the side effects of prednisone in women compare with those seen in men?
Usually, prednisone oral tablets can cause the same side effects in females* and males.* But if you’re female, prednisone can cause changes in your period. This could include changes in menstrual cycle length, causing your period to come early or late.
If you have concerns about prednisone’s side effects, talk with your doctor. Also, talk with your doctor if you notice changes in your period while taking prednisone.
* Sex and gender exist on spectrums. In this article, we use the terms “female” and “male” to refer to a person’s sex assigned at birth.
Are there short-term side effects from prednisone?
Yes, there may be short-term side effects if you take prednisone oral tablets for a short time. These may include nausea, upset stomach, or headache.* It’s also possible to have an increased appetite that can lead to weight gain.* Other possible side effects include sleep problems and increased sweating.
Most of the short-term side effects of prednisone are mild and temporary. But if side effects don’t go away or they become bothersome, contact your doctor.
* To learn more about this side effect, see the “Side effects of prednisone in detail” section below.
Can prednisone 20 mg cause constipation?
No. Prednisone oral tablets aren’t known to cause constipation. This side effect was not reported in studies of the drug, so it isn’t likely that you’ll experience constipation while taking prednisone.
But constipation may be a sign of other side effects, such as a low potassium level. Tell your doctor if you have constipation while taking prednisone. They can help determine the cause and discuss ways to manage it.
If I stop taking prednisone, will I experience withdrawal symptoms?
If you stop taking prednisone oral tablets suddenly, you may experience withdrawal symptoms. (Withdrawal describes symptoms that can occur when you stop taking a drug your body is dependent on.)
Examples of withdrawal symptoms from prednisone include fatigue (low energy), mood swings, and body aches.
You may have an increased risk of withdrawal symptoms if you’ve been taking prednisone for a long time or at high dosages.* To help avoid withdrawal symptoms, doctors usually recommend gradually decreasing the dosage before stopping treatment. This gives your body time to adjust.
If you have questions about how to stop taking prednisone, talk with your doctor. Do not stop taking prednisone without first talking with your doctor.
* To learn about prednisone’s dosages, see this article.
Is ‘moon face’ a side effect of prednisone?
It’s possible. Moon face is often a symptom of Cushingoid state, which can be a side effect of prednisone oral tablets. With moon face, you have swelling in your face that makes it rounder. With Cushingoid state, your body has too much cortisol hormone. High dosages* or long-term treatment with prednisone can cause this in some cases.
If you notice changes in your face while taking prednisone, contact your doctor. They can determine whether prednisone are the cause and advise the best way to manage the changes.
* To learn about prednisone’s dosages, see this article.
Does prednisone cause long-term side effects?
Yes, taking prednisone oral tablets long-term can cause certain side effects. Some examples include:
- adrenal insufficiency (inability of your adrenal glands to produce certain hormones)
- eye problems, such as glaucoma and cataracts
- increased blood pressure
- osteoporosis (decrease in bone density)
- ulcers (sores) in the stomach or upper part of the small intestine
- increased blood sugar level, which may lead to type 2 diabetes
- slowed growth in children
- increased risk of infection
- weight gain
- mental health conditions, such as depression, psychosis, and personality changes
If you’re concerned about taking prednisone oral tablets long term, talk with your doctor about possible side effects and how to monitor them. You can also check out the drug’s prescribing information to learn more about all side effects reported with the drug, including long-term ones.