Antipsychotics: Adherence, Metabolic Monitoring, Extrapyramidal Symptoms, and Neuroleptic Malignant Syndrome
Teach daily adherence without abrupt discontinuation and monitoring of weight, glucose, and lipids, especially with second-generation antipsychotics. Report restlessness, muscle spasms, tremor, or involuntary movements of the tongue and face early. Call 911 for fever with severe muscle rigidity and altered mental status (neuroleptic malignant syndrome); clients taking clozapine keep every ANC test and report fever or sore throat at once.
Who needs this teaching
Clients who take an antipsychotic for schizophrenia, bipolar disorder, or another psychotic disorder, and the family. First-generation antipsychotics, such as haloperidol, fluphenazine, and chlorpromazine, block dopamine D2 receptors and cause more extrapyramidal symptoms (EPS). Second-generation antipsychotics, such as risperidone, olanzapine, quetiapine, aripiprazole, and clozapine, cause more metabolic adverse effects.
The priority teaching points
- Adherence. Take the medication every day, including when symptoms improve. Hallucinations and delusions improve over several weeks. Abrupt discontinuation causes relapse and withdrawal symptoms. Discuss a long-acting injectable form for clients with poor adherence.
- Metabolic monitoring. Second-generation antipsychotics cause weight gain, hyperglycemia, and dyslipidemia; clozapine and olanzapine carry the highest risk. Weight is checked at baseline, monthly for the first 3 months, then every 3 months. Fasting glucose or A1C, lipids, blood pressure, and waist circumference are checked at baseline, at about 3 months, then at least yearly. Report polyuria, polydipsia, and polyphagia.
- Extrapyramidal symptoms. Acute dystonia (sustained muscle spasm of the neck, eyes, or tongue) occurs within hours to days. Akathisia (motor restlessness, inability to sit still) and pseudoparkinsonism (tremor, rigidity, shuffling gait, masklike face) develop over days to weeks. Report these early. Benztropine treats dystonia and pseudoparkinsonism; propranolol or a dose change treats akathisia. Laryngeal dystonia with difficulty breathing or swallowing requires a 911 call.
- Tardive dyskinesia. Long-term use causes tardive dyskinesia: involuntary lip smacking, tongue protrusion, chewing, and facial grimacing. It is often irreversible. Report the first abnormal movement. The provider screens with the Abnormal Involuntary Movement Scale (AIMS) at baseline and at regular intervals.
- Orthostatic hypotension and other effects. Rise slowly and sit on the edge of the bed before standing. Avoid alcohol and driving until the sedative effect is known. Anticholinergic effects include dry mouth, constipation, and urinary retention. Antipsychotics impair thermoregulation; avoid overheating and dehydration.
- Neuroleptic malignant syndrome. This life-threatening reaction presents with hyperthermia, severe "lead-pipe" muscle rigidity, altered mental status, diaphoresis, tachycardia, and labile blood pressure. Creatine kinase (CK) is elevated. Neuroleptic malignant syndrome (NMS) occurs most often in the first 2 weeks of therapy or after a dose increase. Call 911.
- Clozapine. Clozapine causes severe neutropenia (agranulocytosis). Treatment starts only with an absolute neutrophil count (ANC) of at least 1,500/mm3. Keep every ANC test: weekly for the first 6 months, every 2 weeks for months 6 to 12, then monthly. Report fever, sore throat, or mouth sores at once. Clozapine also causes severe constipation and seizures. Tell the provider before starting or stopping smoking; smoking lowers clozapine levels.
Red flags the client reports
| Call the provider the same day | Call 911 or the local emergency number |
|---|---|
| Restlessness, muscle stiffness, tremor, or shuffling gait | Fever with severe muscle rigidity, confusion, or diaphoresis |
| New involuntary movements of the lips, tongue, or face | Muscle spasm of the throat with difficulty breathing or swallowing |
| Polyuria, polydipsia, or rapid weight gain | Syncope, seizure, or a rapid irregular heartbeat |
| Fever, sore throat, or mouth sores during clozapine therapy: call immediately | Severe abdominal pain, distention, and vomiting during clozapine therapy |
Teach-back questions
- "Why will you keep taking this medicine when you feel well?"
- "Which blood tests and weight checks will you keep?"
- "Which movements of your mouth or tongue will you report?"
- "How will you get out of bed in the morning?"
- "Which signs mean you call 911?"
Teaching tips
- Ask the family to watch for movement changes the client does not notice.
- Teach the early signs of relapse: poor sleep, social withdrawal, and returning voices.
Read more on NCLEXPace
Sources
- Keepers GA, et al. The American Psychiatric Association Practice Guideline for the Treatment of Patients With Schizophrenia. Am J Psychiatry. 2020;177(9):868-872.
- American Diabetes Association, American Psychiatric Association, American Association of Clinical Endocrinologists, North American Association for the Study of Obesity. Consensus Development Conference on Antipsychotic Drugs and Obesity and Diabetes. Diabetes Care. 2004;27(2):596-601.
- Clozapine Tablets: FDA prescribing information, including boxed warning (DailyMed).
- Haloperidol Tablets: FDA prescribing information (DailyMed).
Why this matters for the NCLEX
Teaching is effective when the client states, "I will get my blood count checked every week while I start clozapine," and "I will sit on the edge of the bed before I stand up." Statements requiring further teaching include, "I will stop my pills once the voices go away," "Lip smacking is just a habit, so I will not mention it," and "A fever with stiff muscles will pass if I rest."
Frequently asked questions
Why does the client report tardive dyskinesia early?
Tardive dyskinesia is often irreversible. Early detection and a prompt change in therapy reduce the risk of permanent movements.
Is weight gain a reason to stop the medication?
No. The client reports weight gain to the provider. Diet, activity, and medication adjustments manage metabolic effects without abrupt discontinuation.
NCLEX high-yield tips and questions on this topic
Schizophrenia and Antipsychotic Adverse EffectsRespond therapeutically to hallucinations and delusions, and recognize dystonia, tardive dyskinesia, NMS and clozapine neutropenia.3,200+ NCLEX questions with think-like-a-nurse rationales, unfolding case studies and adaptive readiness exams. Start with free practice questions, then choose a plan when you are ready.
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