SDA Diphenhydramine HCI Capsules, USP

Diphenhydramine (Benadryl) Capsules by SDA Laboratories is an over-the-counter medication that is used to treat the symptoms of allergies and allergic reactions. It is also used to prevent and treat motion sickness or symptoms of Parkinson's disease.

Diphenhydramine is an antihistamine, which means that it works by blocking histamine, a substance released by the body during an allergic reaction. This helps to reduce the symptoms of allergies, such as runny nose, sneezing, itchy eyes, and watery eyes.

Diphenhydramine can also be used to prevent and treat motion sickness. It works by blocking the effects of motion sickness on the brain. This helps to reduce the symptoms of motion sickness, such as nausea, vomiting, and dizziness.

Diphenhydramine can also be used to treat symptoms of Parkinson's disease. It works by blocking the effects of dopamine, a neurotransmitter that is affected in Parkinson's disease. This helps to reduce the symptoms of Parkinson's disease, such as tremors, muscle stiffness, and slowness of movement.