If you experience any of the following serious side effects, stop taking betamethasone and seek emergency medical attention or contact your doctor immediately:

an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives)
increased blood pressure (severe headache or blurred vision)
sudden weight gain (more than 5 pounds in a day or two)
 

Other, less serious side effects may be more likely to occur. Continue to take betamethasone and talk to your doctor if you experience:

insomnia
nausea, vomiting, or stomach upset
fatigue or dizziness
muscle weakness or joint pain
problems with diabetes control
increased hunger or thirst

Other side effects that occur only rarely, usually with high doses of betamethasone, include:

acne
increased hair growth
thinning of the skin
cataracts
glaucoma
osteoporosis
roundness of the face
changes in behavior

 

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

 

FDA Information

Why is this medication prescribed?

Other uses for this medicine

Dosage and using this medicine

What special precautions should I follow?

What should I do if I forget a dose?

What storage conditions are needed for this medicine?

In case of an emergency/overdose