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Drug Interactions between haloperidol and nebivolol

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

haloperidol nebivolol

Applies to: haloperidol and nebivolol

MONITOR: Coadministration with inhibitors of CYP450 2D6 may increase the plasma concentrations of nebivolol, which is primarily metabolized by the isoenzyme The mechanism is decreased clearance due to inhibition of CYP450 2D6 activity. Several studies have shown that coadministration of CYP450 2D6 inhibitors increases the peak plasma concentration (Cmax) and systemic exposure (AUC) of nebivolol. When the potent CYP450 2D6 inhibitor paroxetine (20-40 mg daily) was coadministered with nebivolol (5 mg) in 23 healthy subjects, nebivolol's Cmax and AUC increased by 5.7-fold and 6.1-fold, respectively. Similarly, when bupropion (300 mg), a potent CYP450 2D6 inhibitor, was coadministered with nebivolol in 18 healthy volunteers, the Cmax and AUC increased by 2.3-fold and 7.2-fold, respectively. Fluoxetine (20 mg daily), a potent CYP450 2D6 inhibitor, increased nebivolol's Cmax and AUC by approximately 2.3-fold and 6-fold in 10 patients. Fluvoxamine, a mild CYP450 2D6 inhibitor, increased Cmax and AUC by 1.41-fold and 1.44-fold in 18 healthy volunteers. However, no data resulted in significant changes to heart rate or blood pressure.

MANAGEMENT: Caution is advised when nebivolol is used concomitantly with CYP450 2D6 inhibitors. Additional caution and monitoring are advised if the coadministered CYP450 2D6 inhibitor may potentiate the blood pressure lowering effects of nebivolol (e.g., phenothiazines, tricyclic antidepressants (TCAs), and some antipsychotic (neuroleptic) agents). Patients should be monitored closely for adverse effects such as bradycardia, diarrhea, nausea, fatigue, chest pain, peripheral edema, headache, dizziness, insomnia, dyspnea and rash, and the nebivolol dose should be adjusted according to blood pressure response.

References (7)
  1. Lindamood C, Ortiz S, shaw a, Rackley R, Gorski JC (2011) "Effects of commonly administered agents and genetics on nebivolol pharmacokinetics: drug-drug interaction studies." J Clin Pharmacol, 51, p. 575-85
  2. Gheldiu AM, Vlase L, Popa A, et al. (2017) "Investigation of a potential pharmacokinetic interaction between nebivolol and fluvoxamine in healthy volunteers." J Pharm Pharm Sci, 20, p. 68-80
  3. Briciu C, Neag M, Muntean D, et al. (2014) "A pharmacokinetic drug interaction study between nebivolol and paroxetine in healthy volunteers." J Clin Pharm Ther, 39, p. 535-40
  4. Gheldiu AM, Popa A, Neag M, et al. (2016) "Assessment of a potential pharmacokinetic interaction between nebivolol and bupropion in healthy volunteers." Pharmacology, 98, p. 190-8
  5. (2024) "Product Information. Nebivolol (nebivolol)." Apnar Pharma LLP
  6. (2025) "Product Information. Nebivolol (nebivolol)." Glenmark Pharmaceuticals Europe Ltd
  7. (2024) "Product Information. Nepiten (nebivolol)." Southern Cross Pharma Pty Ltd

Drug and food interactions

Moderate

haloperidol food

Applies to: haloperidol

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References (4)
  1. Warrington SJ, Ankier SI, Turner P (1986) "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology, 15, p. 31-7
  2. Gilman AG, eds., Nies AS, Rall TW, Taylor P (1990) "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: Pergamon Press Inc.
  3. (2012) "Product Information. Fycompa (perampanel)." Eisai Inc
  4. (2015) "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc
Moderate

haloperidol food

Applies to: haloperidol

MONITOR: Smoking cessation may lead to elevated plasma concentrations and enhanced pharmacologic effects of drugs that are substrates of CYP450 1A2 (and possibly CYP450 1A1) and/or certain drugs with a narrow therapeutic index (e.g., flecainide, pentazocine). One proposed mechanism is related to the loss of CYP450 1A2 and 1A1 induction by polycyclic aromatic hydrocarbons in tobacco smoke; when smoking cessation agents are initiated and smoking stops, the metabolism of certain drugs may decrease leading to increased plasma concentrations. The mechanism by which smoking cessation affects narrow therapeutic index drugs that are not known substrates of CYP450 1A2 or 1A1 is unknown. The clinical significance of this interaction is unknown as clinical data are lacking.

MANAGEMENT: Until more information is available, caution is advisable if smoking cessation agents are used concomitantly with drugs that are substrates of CYP450 1A2 or 1A1 and/or those with a narrow therapeutic range. Patients receiving smoking cessation agents may require periodic dose adjustments and closer clinical and laboratory monitoring of medications that are substrates of CYP450 1A2 or 1A1.

References (4)
  1. (2024) "Product Information. Cytisine (cytisinicline)." Consilient Health Ltd
  2. jeong sh, Newcombe D, sheridan j, Tingle M (2015) "Pharmacokinetics of cytisine, an a4 b2 nicotinic receptor partial agonist, in healthy smokers following a single dose." Drug Test Anal, 7, p. 475-82
  3. Vaughan DP, Beckett AH, Robbie DS (1976) "The influence of smoking on the intersubject variation in pentazocine elimination." Br J Clin Pharmacol, 3, p. 279-83
  4. Zevin S, Benowitz NL (1999) "Drug interactions with tobacco smoking: an update" Clin Pharmacokinet, 36, p. 425-38

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
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 interaction information available.

Further information

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