A Study Investigating the Movement of Lu AF28996 Into, Through, and Out of the Body of Healthy Men

Key Inclusion Criteria: * The participant has a Body Mass Index (BMI) \>=18.5 and \<=30 kilograms per square meter (kg/m\^2) and body weight ≥60 kg at the Screening Visit and at the Baseline Visit. * The participant has a resting supine pulse \>=50 and \<=100 beats per minute (bpm) at the Screening Visit and at the Baseline Visit. * The participant is, in the opinion of the investigator, generally healthy based on medical history, a physical examination, a neurological examination, vital signs, an electrocardiogram (ECG), and the results of the clinical chemistry, haematology, urinalysis, serology, and other laboratory tests. Key Exclusion Criteria: * The participant has participated in a clinical trial \<30 days prior to the Screening Visit. * The participant has taken any investigational medicinal product \<3 months or \<5 half-lives of that product, whichever is longest, prior to the first dose of investigational medicinal product (IMP). * Participants with exposure to significant diagnostic or therapeutic radiation (eg, serial X-ray, computed tomography scan, barium meal) or current employment in a job requiring radiation exposure monitoring within 12 months prior to check-in. Other protocol-defined criteria apply.