Clozaril carries several black box warnings about potentially dangerious side effects. See Clozaril Black Box Warnings for additional information.
Common Side Effects:
Check with your doctor if any of the following side effects continue or are bothersome:Constipation; dizziness or lightheadedness (mild); drowsiness; headache (mild); increased watering of mouth; nausea or vomiting; unusual weight gain
Less Common Side Effects:
Check with your doctor if any of the following side effects continue or are bothersome:Abdominal discomfort or heartburn; dryness of mouth
Always Notify Doctor:
More common: Fast or irregular heartbeat; fever; low blood pressure; dizziness, especially when getting up from a lying or sitting positionLess common: High blood pressure (severe or continuing headache); blurred vision; confusion; restlessness or need to keep moving; unusual anxiety, nervousness, or irritability
Rare: Chest pain; chills; convulsions (seizures); cough; difficult or fast breathing or sudden shortness of breath; fainting; increased sweating; loss of bladder control; muscle stiffness (severe); sore throat; sores, ulcers, or white spots on lips or in mouth; swelling or pain in leg; unusual bleeding or bruising; unusual tiredness or weakness; unusually pale skin; absence of or decrease in movement; decreased sexual ability; high blood sugar (increased appetite, increased thirst, increased urination, weakness); lip smacking or puckering; liver problems (dark urine, decreased appetite, nausea, vomiting, yellow eyes or skin); mental depression; puffing of cheeks; rapid or worm-like movements of tongue; trembling or shaking; trouble in sleeping; trouble in urinating; uncontrolled chewing movements; uncontrolled movements of arms and legs

