What side effects can this medication cause?
Stop using clozapine and get emergency medical help if you have any of these signs of an allergic reaction: hives, difficulty breathing, swelling of your face, lips, tongue, or throat.
Moreover, stop using clozapine and get emergency medical help if you feel tired or short of breath, or if you have rapid breathing, chest pain, uneven heartbeats, unusual swelling or water retention. These could be signs of swelling in your heart muscle or a blood clot in your lung. Both side effects are life-threatening.
Contact your doctor at once if you feel unusually weak or tired, feel as if you have the flu, or have fever, sore throat, or sores or white patches in your mouth or throat. These could be signs that your white blood cells are low, a serious side effect that could lead to a life-threatening infection.
Call your doctor at once if you have any of these serious side effects:
seizure (black-out or convulsions)
fainting or light-headedness
shallow breathing
weak pulse
high fever with muscle stiffness, confusion, sweating, fast or uneven heartbeats
twitching or uncontrolled muscle movements
nausea
stomach pain
low fever
loss of appetite
dark urine or clay-colored stools
jaundice (yellowing of the skin or eyes)
Other less serious side effects are more likely to occur, such as:
constipation
nausea, vomiting, upset stomach
drowsiness
salivation (drooling)
increased sweating
sleep problems or nightmares
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.
Why is this medication prescribed?
Dosage and using this medicine
What special precautions should I follow?
What should I do if I forget a dose?