I took several different form of this class of medication; Claritin, Singulair... each time I ended up with severe aching dental pains that got worse. I felt the pain all the way up into my ears. I thought maybe TMJ or new arthritis? Each time I stopped these allergy meds, the pain stopped. Each time I went on the pain came back. Eventually I read some blurb about nerve described pain related to this type of drug.
Has anyone else heard about or experienced this?