What dosage of Diphenhydramine is administered for a patient with a mild allergic reaction?

For a patient experiencing a mild allergic reaction, the administration of Diphenhydramine at a dosage of 25 mg via IV or IM is appropriate based on established protocols. This dosage is commonly recommended for managing allergic symptoms because it effectively helps alleviate symptoms such as itching, urticaria (hives), and mild respiratory distress without the risk of excessive sedation that can occur at higher dosages.

The 25 mg dosage is sufficient to provide relief while balancing efficacy and safety, making it the standard choice in clinical settings. Additionally, its route of administration can be IV for immediate relief or IM if intravenous access is not readily available, thus providing flexibility in treatment.

Other dosages mentioned do not align with typical protocols for mild allergic reactions. For instance, the higher doses could lead to increased side effects, such as drowsiness and anticholinergic effects, which would not be ideal in a mild allergic reaction scenario. The route and dose selected must always prioritize patient comfort and safety, where 25 mg is often recognized as the optimal amount for mild conditions.