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

an allergic reaction (difficulty breathing, closing of the throat, swelling of the lips, tongue, or face, or hives)
uncontrollable movements of the mouth, tongue, cheeks, jaw, arms, or legs
fever
muscle rigidity
muscle spasms of the face or neck
sweating
irregular pulse
fast or irregular heartbeats
severe restlessness or tremor
severe drowsiness
blurred vision
dizziness or fainting
a rash

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

dry mouth, stuffy nose
constipation
mild restlessness, drowsiness, or tremor
decreased sex drive
increased appetite
difficult urination or dark urine
menstrual irregularities or swollen breasts

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