Which two groups of antidepressant drugs has the highest incidence of dry mouth (xerostomia)?
1. Tricyclic antidepressants (i.e. Elavil)
2. Selective serotonin reuptake inhibitors (i.e., Prozac and Paxil)
3. Serotonin and norepinephrine reuptake inhibitors (i.e., Effexor and Cymbalta)
4. Monoamine oxidase inhibitors (i.e., Nardil)

(1) and (3)

(2) and (4)

(1) and (4)

(2) and (3)