Sympathomimetic(s) asthma medications (e.g. adrenalin, albuterol and psuedoephedrine) are used as either bronchodilators in asthma or decongestants in eye, nose, and sinus allergy. Modern sympathomimetic asthma medications are usually selective in that they stimulate mostly the beta 2 receptors in the lung causing bronchodilation (e.g. albuterol). While those sympathomimetics used to treat upper respiratory allergy also stimulate alpha-receptors causing the blood vessels to contract and thereby decreasing congestion due to allergic reactions ( e.g. pseudoephedrine, phenylpropolamine).