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The 28 pages that link to QT interval, each with the reason it gives.

• AntipsychoticRelated: Some antipsychotics can prolong this interval and increase the risk of dangerous heart rhythms.

• Long QT syndromeRelated: Its abnormal prolongation defines the syndrome’s central electrical finding.

• MethadoneRelated: Methadone can prolong the QT interval and increase the risk of a dangerous arrhythmia.

• AzithromycinRelated: Azithromycin can prolong the QT interval and increase arrhythmia risk in susceptible patients.

• OndansetronRelated: Ondansetron can prolong this interval, especially at higher doses or with other risk factors.

• FluoxetineRelated: Fluoxetine has been associated with QT prolongation, particularly in risk-sensitive circumstances.

• HypocalcemiaRelated: Hypocalcemia can prolong this interval and increase the risk of cardiac rhythm disturbances.

• Torsades de pointesRelated: QT measurement helps identify the prolonged repolarization that predisposes to torsades.

• ErythromycinRelated: Erythromycin can prolong this interval and increase the risk of dangerous arrhythmias.

• AmitriptylineRelated: Amitriptyline can affect cardiac electrical timing, especially in overdose or with other risk factors.

• Azole antifungalRelated: Some azoles prolong the QT interval, creating a risk of serious arrhythmia.

• Second-generation antihistamineRelated: Rare cardiac rhythm risks shaped the withdrawal of some older drugs in this class.

• HaloperidolRelated: Haloperidol can prolong this interval and increase the risk of dangerous arrhythmias.

• HydroxyzineRelated: Hydroxyzine can prolong this interval, a concern in people with cardiac risk factors.

• AmiodaroneRelated: Amiodarone prolongs the QT interval, a change clinicians assess alongside arrhythmia risk.

• ClomipramineRelated: Clomipramine may affect cardiac repolarization, especially at high exposure or with interacting drugs.

• ImipramineRelated: Changes in cardiac electrical conduction are among the risks considered with imipramine exposure.

• ClarithromycinRelated: Clarithromycin can prolong the QT interval and increase the risk of dangerous arrhythmias.

• FluconazoleRelated: Fluconazole can prolong the QT interval, especially alongside other risk factors or interacting drugs.

• LevofloxacinRelated: Levofloxacin can prolong this interval and raise arrhythmia risk in susceptible patients.

• Arsenic trioxideRelated: Arsenic trioxide treatment can prolong the QT interval, requiring cardiac monitoring.

• DomperidoneRelated: Domperidone can prolong this interval, creating a risk of serious arrhythmias.

• TrazodoneRelated: Trazodone can prolong the QT interval, a concern for patients with cardiac risk factors.

• VardenafilRelated: Vardenafil can affect QT duration, making certain heart conditions and medicines relevant.

• FluphenazineRelated: Antipsychotic treatment may prompt attention to cardiac rhythm risks, including QT prolongation.

• IbogaineRelated: Ibogaine-related QT prolongation is a warning sign for potentially fatal abnormal rhythms.