Along with its needing effects, quetiapine can sometimes cause serious side effects. Some side effects will have signs or symptoms that you can see or feel. Your family doctor may watch for others, such as changes in the lenses of the eyes, by doing certain tests. Tardive dyskinesia - a movement disorder may occur and may not go away after you stop using the drug. Signs of tardive dyskinesia include fine, worm-like movements of the tongue, or other uncontrolled movements of the mouth, tongue, cheeks, jaw, or arms and legs. Another serious but rare side effect that may occur is the neuroleptic malignant syndrome - NMS You and your family doctor must discuss the good this drug will do as well as the chance of taking it .
Stop taking this drug and get emergency help immediately if the following side effects was happen
Rare Symptoms of NMS; two or more occur together; most of these effects do not require emergency medical attention if they occur alone
Convulsions - seizures; difficult or unusually fast breathing; fast heartbeat or irregular pulse; high fever; high or low - irregular blood pressure; increased sweating; loss of bladder control; severe muscle stiffness; unusually pale skin; unusual tiredness or weakness
Check with your family doctor as soon as possible if any of the following side effects was happen
Less common
Dizziness, lightheadedness, or fainting, especially when getting up from a lying or sitting position; fever, chills, muscle aches, or sore throat; loss of balance control; mask-like face; shuffling walk; skin rash; slowed movements; stiffness of arms or legs; swelling of feet or lower legs; trembling and shaking of hands and fingers; trouble in breathing, speaking, or swallowing
Rare
Fainting; fast, pounding, or irregular heartbeat; menstrual changes; unusual secretion of milk - in females
Rare Symptoms of underactive thyroid; usually two or more occur together; these effects do not require medical attention if they occur alone unless they continue or are bothersome
Dry, puffy skin; loss of appetite; tiredness; weight gain
Symptoms of overdose May be similar to side effects seen at normal doses but may be more severe or two or more may occur together
Drowsiness; fast, slow, or irregular heartbeat; low blood pressure; weakness
More common side effects may occur that usually do not need medical attention. These side effects may go away during treat as your body adjusts to the drug. However, check with your family doctor if any of the following side effects continue or are bothersome:
More common
Constipation; drowsiness; dry mouth; increased weight; indigestion
Less common
Abdominal pain; abnormal vision; decrease in appetite; decreased strength and energy; feeling of fast or irregular heartbeat; headache; increased muscle tone; increased sweating; stuffy or runny nose
More common side effects not listed above may also occur in some diseaseds. If you notice any other problems, check with your family doctor.