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Nuplazid (pimavanserin) Disease Interactions

There are 10 disease interactions with Nuplazid (pimavanserin):


Atypical Antipsychotic Agents (Includes Nuplazid) ↔ Dementia

Severe Potential Hazard, High plausibility

Applies to: Dementia

Elderly patients with dementia- related psychosis treated with antipsychotic drugs are at an increased risk of death, mostly from cardiovascular (e.g., heart failure, sudden death) or infectious (e.g., pneumonia) causes. A causal relationship with antipsychotic use has not been established. In controlled trials, treatment with some atypical antipsychotic drugs was also associated with an increased risk of cerebrovascular adverse events (e.g., stroke, transient ischemic attack), including fatalities, in elderly patients with dementia- related psychosis. These agents are not approved for the treatment of patients with dementia- related psychosis.


Neuroleptics (Includes Nuplazid) ↔ Nms

Severe Potential Hazard, High plausibility

Applies to: Neuroleptic Malignant Syndrome

The central dopaminergic blocking effects of neuroleptic agents may precipitate or aggravate a potentially fatal symptom complex known as neuroleptic malignant syndrome (NMS). NMS is observed most frequently when high-potency agents like haloperidol are administered intramuscularly, but may occur with any neuroleptic agent given for any length of time. Clinical manifestations of NMS include hyperpyrexia, muscle rigidity, altered mental status and autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis and cardiac arrhythmias). Additional signs may include elevated creatine phosphokinase, myoglobinuria, and acute renal failure. Neuroleptic agents should not be given to patients with active NMS and should be immediately discontinued if currently being administered in such patients. In patients with a history of NMS, introduction or reintroduction of neuroleptic agents should be carefully considered, since NMS may recur.


  1. Anderson ES, Powers PS "Neuroleptic malignant syndrome associated with clozapine use." J Clin Psychiatry 52 (1991): 102-4
  2. "Product Information. Haldol (haloperidol)." McNeil Pharmaceutical, Raritan, NJ.
  3. Sharma R, Trappler B, Ng YK, Leeman CP "Risperidone-induced neutroleptic malignant syndrome." Ann Pharmacother 30 (1996): 775-8
View all 40 references

Neuroleptics (Includes Nuplazid) ↔ Tardive Dyskinesia

Severe Potential Hazard, High plausibility

Applies to: Tardive Dyskinesia

Neuroleptic agents may precipitate symptoms of tardive dyskinesia (TD), a syndrome consisting of rhythmic involuntary movements variously involving the tongue, face, mouth, lips, jaw, and/or trunk and extremities, following chronic use of at least several months but often years. Elderly patients, particularly women, are most susceptible. Both the risk of developing the syndrome and the likelihood that it will become irreversible increase with the duration and total cumulative dose of neuroleptic therapy administered. However, patients may infrequently develop symptoms after relatively brief treatment periods at low dosages. If TD occurs during neuroleptic therapy, prompt withdrawal of the offending agent or at least a lowering of the dosage should be considered. TD symptoms may become more severe after drug discontinuation or a dosage reduction, but may gradually improve over months to years. In patients with preexisting drug-induced TD, initiating or increasing the dosage of neuroleptic therapy may temporarily mask the symptoms of TD but could eventually worsen the condition. The newer, atypical neuroleptic agents (e.g., risperidone, quetiapine, olanzapine) tend to be associated with a substantially reduced risk of inducing TD and are considered the drugs of choice in patients being treated for psychosis.


  1. Pinder RM, Brogden RN, Swayer R, Speight TM, Spencer R, Avery GS "Pimozide: a review of its pharmacological properties and therapeutic uses in psychiatry." Drugs 12 (1976): 1-40
  2. Ghelber D, Belmaker RH "Tardive dyskinesia with quetiapine." Am J Psychiat 156 (1999): 796-7
  3. "Product Information. Risperdal (risperidone)." Janssen Pharmaceutica, Titusville, NJ.
View all 42 references

Pimavanserin (Includes Nuplazid) ↔ Hepatic Impairment

Severe Potential Hazard, Moderate plausibility

Applies to: Liver Disease

The use of pimavanserin is not recommended in patients with hepatic impairment, as this drug has not been evaluated in this patient population.


Pimavanserin (Includes Nuplazid) ↔ Qt Prolongation

Severe Potential Hazard, Moderate plausibility

Applies to: Long QT Syndrome, Arrhythmias, Hypokalemia, Magnesium Imbalance

Pimavanserin prolongs the QT interval and should be avoided in patients with known QT prolongation or in patients taking other drugs known to prolong QT interval (class 1A and class 3 antiarrhythmics, certain antipsychotics, and some antibiotics). Pimavanserin should also be avoided in patients with cardiac arrhythmias and other circumstances that might increase the risk of the occurrence of Torsade de Pointes and/or sudden death, including symptomatic bradycardia, hypokalemia or hypomagnesemia.


Atypical Antipsychotic Agents (Includes Nuplazid) ↔ Hematologic Abnormalities

Moderate Potential Hazard, High plausibility

Applies to: Neutropenia

Cases of leukopenia, neutropenia, and agranulocytosis have been reported with the use of atypical antipsychotic agents. Patients with preexisting low white blood cell count may be at increased risk. Therapy with these agents should be administered cautiously in patients with a history of, or predisposition to, decreased white blood cell or neutrophil counts. Clinical monitoring of hematopoietic function is recommended. At the first sign of a clinically significant decline in white blood cells, discontinuation of atypical antipsychotic therapy should be considered in the absence of other causative factors, and the patient closely monitored for fever or other signs and symptoms of infection.


Atypical Antipsychotic Agents (Includes Nuplazid) ↔ Hyperglycemia/Diabetes

Moderate Potential Hazard, Moderate plausibility

Applies to: Obesity

Hyperglycemia, in some cases extreme and associated with ketoacidosis or hyperosmolar coma or death, has been reported with the use of atypical antipsychotic agents. Patients with diabetes should be monitored for worsening control of blood glucose when treated with these agents. It is recommended that patients with risk factors for diabetes mellitus starting treatment with atypical antipsychotics should undergo fasting blood glucose testing at the beginning of treatment, and periodically thereafter. Any patient treated with atypical antipsychotics should be monitored for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia, and weakness. Patients who develop symptoms of hyperglycemia during treatment with atypical antipsychotics should undergo fasting blood glucose testing. In some cases, hyperglycemia has resolved when treatment with these agents was discontinued; however, some patients required continuation of anti-diabetic treatment despite discontinuation of the atypical antipsychotic drug.


Neuroleptics (Includes Nuplazid) ↔ Hyperprolactinemia

Moderate Potential Hazard, Moderate plausibility

Applies to: Hyperprolactinemia, Breast Cancer

The chronic use of neuroleptic agents can cause persistent elevations in prolactin levels due to antagonism of dopamine D2 receptors. Based on in vitro data, approximately one-third of human breast cancers are thought to be prolactin-dependent. The clinical significance of this observation with respect to long-term neuroleptic therapy is unknown. Chronic administration of neuroleptic drugs has been associated with mammary tumorigenesis in rodent studies but not in human clinical or epidemiologic studies. Until further data are available, therapy with neuroleptic agents should be administered cautiously in patients with a previously detected breast cancer. Caution is also advised in patients with preexisting hyperprolactinemia. Hyperprolactinemia may suppress hypothalamic gonadotrophin releasing hormone (GnRH), resulting in reduced pituitary gonadotropin secretion. This, in turn, may inhibit reproductive function by impairing gonadal steroidogenesis in both female and male patients. Galactorrhea, amenorrhea, gynecomastia, and impotence have been reported in patients receiving prolactin-elevating compounds; however, the clinical significance of elevated serum prolactin levels is unknown for most patients. Long-standing hyperprolactinemia when associated with hypogonadism may lead to decreased bone density in both female and male patients.


  1. Dickson RA, Dalby JT, Williams R, Edwards AL "Risperidone-induced prolactin elevations in premenopausal women with schizophrenia." Am J Psychiatry 152 (1995): 1102-3
  2. "Product Information. Moban (molindone)." Gate Pharmaceuticals, Sellersville, PA.
  3. Meco G, Falaschi P, Casacchia M, et al "Neuroendocrine effects of haloperidol decanoate in patients with chronic schizophrenia." Adv Biochem Psychopharmacol 40 (1985): 89-93
View all 16 references

Neuroleptics (Includes Nuplazid) ↔ Seizure Disorders

Moderate Potential Hazard, Moderate plausibility

Applies to: CNS Disorder

Neuroleptic agents can lower the seizure threshold and induce seizures, particularly when dosages are high or increased rapidly and during the initiation of therapy. Clozapine appears to have the greatest epileptogenic potential, while most of the other newer, atypical neuroleptic agents (e.g., risperidone, quetiapine, olanzapine), as well as haloperidol and molindone, have the least. Therapy with neuroleptic agents should be administered cautiously in patients with a history of seizures or other factors predisposing to seizures such as abnormal EEG, preexisting CNS pathology, or head trauma. Adequate anticonvulsant therapy should be maintained during administration of neuroleptic agents. Clozapine should not be used in patients with uncontrolled epilepsy.


  1. Mahr GC, Berchou R, Balon R "A grand mal seizure associated with desipramine and haloperidol." Can J Psychiatry 32 (1987): 463-4
  2. Welch J, Manschreck T, Redmond D "Clozapine-induced seizures and EEG changes." J Neuropsychiatry Clin Neurosci 6 (1994): 250-6
  3. "Product Information. Geodon (ziprasidone)." Pfizer US Pharmaceuticals, New York, NY.
View all 29 references

Pimavanserin (Includes Nuplazid) ↔ Renal Impairment

Moderate Potential Hazard, Moderate plausibility

Applies to: Renal Dysfunction

The use of pimavanserin is not recommended in patients with severe renal impairment (CrCl < 30 mL/min), as it has not been evaluated in this patient population. No dose adjustment is needed for patients with mild to moderate renal disease.

Nuplazid (pimavanserin) drug Interactions

There are 490 drug interactions with Nuplazid (pimavanserin)

Nuplazid (pimavanserin) alcohol/food Interactions

There is 1 alcohol/food interaction with Nuplazid (pimavanserin)

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No information available.

Do not stop taking any medications without consulting your healthcare provider.

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