Belligerent symptoms and conditions

My mother was diagnosed with Alzheimer's last year. It has been in the mild stages until last week when she was hospitalized for diverticulitis.
Upon being discharged she was prescribed Levaquin 500mg to be taken once a day for 12 days. Because the cost of the drug was $132.00, I had them cut the rx in half.
Since taking this drug my mother has had morning sweats and worst of all it has made her combative and belligerent. I know as Alzheimer's progresses that some patient become this way but based on the fact this she did not become this way until she began taking this medication, I believe it exasperated her condition. And since taking her off of this drug, she has become more calm but it has had to work itself out of her system over the past 6 days.

My husband has recently started taking adderall for a month now. He gets very angry over simplist things. He has now become verbally belligerent, and he rapidly goes through drastic extreme mood swings. Are these side effects to this medication?

Since I have begun Sinulair, I have noticed improvement of my chronic nasal allergy symptoms. For the first time in YEARS, the congestion is finally lessening. However, I have noticed that I'm hyper all the time now. Where I have had sleep issues in the past, they have only been excacerbated by this medication. Has anyone else noticed this effect? I have tried to research it further, but I don't have access to a Physician's Desk Reference. The web isn't giving me the entire list of known side effects. I have only seen the vomiting, diarrhea or headache listed, but have yet to see something regarding insomnia and hyperactivity.