When prescribing montelukast (singulair) for asthma, patients or parents of patients should be instructed as follows: ?

When prescribing montelukast for asthma, the patient or parents of the patient should be instructed or to be reminded of the following as these things or events could occur when a patient is taking up the drug montelukast because of its properties; depression, suicidal thoughts, anxiety and aggression. 

allowed for the prediction of the properties of missing elements.