nondrowsy
Nondrowsy refers to a characteristic of certain medications, particularly antihistamines, that do not cause significant drowsiness or sedation in users. Traditional antihistamines, such as diphenhydramine and doxylamine, are known for their sedating effects due to their ability to cross the blood-brain barrier and interact with histamine receptors in the brain. In contrast, nondrowsy antihistamines were developed to minimize these effects while still effectively blocking histamine, the compound responsible for allergy symptoms like sneezing, itching, and runny nose.
Nondrowsy antihistamines are often preferred for individuals who need to remain alert, such as those working
The nondrowsy label is not absolute, as factors such as dosage, individual sensitivity, and interactions with