Antihistamines are drugs that are used to treat allergic rhinitis (both seasonal and perennial) and other form of allergies that cause hives or urticaria. They can give relief when a patient has nasal congestion, sneezing or hives because of pollen, dust, or animal allergy (allergens). Second generation antihistamines such as loratidine are prescribed for seasonal allergies because they are less sedating than the first generation antihistamines.
The answer is testosterone.
Testosterone is an androgen sex hormone. Like all other hormones, it serves as a chemical messenger. It will bind to its receptor in the cell and that way performs its function. Among all choices, only testosterone is a hormone a chemical messenger. Adipose tissue is tissue, cholesterol is lipid and a structural component of cell walls and can be a precursor molecule for some biochemical pathways. Beeswax is a natural bees' product.
