The infectious agents associated with neonatal sepsis have changed since the mid-20th century. During the 1950s, S aureus and E coli were the most common bacterial pathogens among neonates in the United States.
Common diphenhydramine side effects may include: 1  dizziness, drowsiness, loss of coordination; 2  dry mouth, nose, or throat; 3  constipation, upset stomach;  dry eyes, blurred vision; 1  or. day-time drowsiness or hangover feeling after night-time  use.
As with any medication, it is possible to take too much diphenhydramine. The specific effects of an overdose with diphenhydramine can vary, depending on a number of factors, including the diphenhydramine dosage and whether it was taken with any other medications or substances.