I've not been taking my usual double-dose of Claritin for the past 4 days, and oddly, it seems like my anxiety about
my food allergies has decreased dramatically. That seems like a weird combination, except that several of the same biochemicals that affect the brain (serotonin, for instance) also function in the immune system. I found one web site that mentions that histamine is also a neurotransmitter.
Has anybody else experienced a change in level of anxiety when you're taking antihistamines regularly as opposed to when you aren't?