Benadryl’s key component is diphenhydramine, an antihistamine. This means it works by blocking histamine, a chemical your body releases during an allergic reaction.
How Diphenhydramine Relieves Allergy Symptoms
Histamine causes many allergy symptoms, such as:
- Sneezing Runny nose Itchy, watery eyes Hives Itching
By preventing histamine from binding to its receptors, diphenhydramine reduces these symptoms. It also possesses sedative properties, often causing drowsiness.
Other Effects of Diphenhydramine
Beyond allergy relief, diphenhydramine can treat other conditions such as:
Motion sickness Insomnia (as a sleep aid, but use with caution and consult a doctor) Common cold symptoms (for symptom relief only)
Remember, diphenhydramine’s effects vary from person to person. Side effects can include dry mouth, blurred vision, and constipation. Always follow dosage instructions carefully, and consult a doctor or pharmacist if you have questions or concerns.
Important Considerations
Diphenhydramine interacts with certain medications. Inform your doctor or pharmacist about all medications you are taking, including over-the-counter drugs and herbal supplements, before using Benadryl.
Do not exceed the recommended dose. Overdosing can be dangerous. If you suspect an overdose, seek immediate medical attention.
