(methsuximide)
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What is the most important information I should know about CELONTIN?

What is the most important information I should know about CELONTIN?

Do not stop taking CELONTIN without first talking to your healthcare provider. Stopping CELONTIN suddenly can cause serious problems.

CELONTIN can cause serious side effects, including:

1.
Rare but serious blood problems that may be life-threatening. Call your healthcare provider right away if you have:
o
fever, swollen glands, or sore throat that come and go or do not go away
o
frequent infections or an infection that does not go away
o
easy bruising
o
red or purple spots on your body
o
bleeding gums or nose bleeds
o
severe fatigue or weakness
2.
Systematic Lupus Erythematosus. Call your healthcare provider right away if you have any of these symptoms:
o
joint pain and swelling
o
muscle pain
o
fatigue
o
low-grade fever
o
pain in the chest that is worse with breathing
o
unexplained skin rash
3.
Like other antiepileptic drugs, CELONTIN may cause suicidal thoughts or actions in a very small number of people, about 1 in 500.

Call a healthcare provider right away if you have any of these symptoms, especially if they are new, worse, or worry you:

 
o
thoughts about suicide or dying
o
attempts to commit suicide
o
new or worse depression
o
new or worse anxiety
o
feeling agitated or restless
o
panic attacks
o
trouble sleeping (insomnia)
o
new or worse irritability
o
acting aggressive, being angry, or violent
o
acting on dangerous impulses
o
an extreme increase in activity and talking (mania)
o
other unusual changes in behavior or mood
 
How can I watch for early symptoms of suicidal thoughts and actions?
o
Pay attention to any changes, especially sudden changes, in mood, behaviors, thoughts, or feelings.
o
Keep all follow-up visits with your healthcare provider as scheduled.
 
Call your healthcare provider between visits as needed, especially if you are worried about symptoms.
 
 
 
Do not stop CELONTIN without first talking to a healthcare provider.
 
Stopping CELONTIN suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).
 
Suicidal thoughts or actions can be caused by things other than medicines. If you have suicidal thoughts or actions, your healthcare provider may check for other causes.
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