Norovirus Incubation Period: A Summary. When a person becomes infected with norovirus, the virus begins to multiply within the small intestine. After approximately 1 to 2 days, norovirus symptoms can appear.This period between the norovirus transmission and the start of norovirus symptoms is known as the norovirus incubation period..fter approximately 1 to 2 days, norovirus symptoms can appear. This period between the norovirus transmission and the start of norovirus symptoms is known as the norovirus incubation period..
DISCONTINUED BRAND: Buspar. Buspirone is a medication that is used for the treatment of anxiety. Its mechanism of action is not clearly understood but may involve effects on neurotransmitters, chemicals that nerves use to communicate with one another. Serotonin and dopamine are two of these neurotransmitters.
Bupropion is an atypical antidepressant that&#039;s sold as Wellbutrin and Wellbutrin XL. Desipramine--Norpramin--is an older antidepressant in the tricyclic group of antidepressants. Another tricyclic antidepressant, trazodone--. Desyrel--may also yield a false positive for amphetamines if you take this medication.ore sophisticated drug testing, as with one of the spectrometry methods, should reveal that the person is not an abuser. The numerous cold medications that contain ephedrine and pseudoephedrine can also cause a false positive for amphetamine or methamphetamine on a urine drug screen.