rhan101277
Forum Deputy Chief
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When the body experiences a severe allergic reaction or anaphylaxis the bronchioles constrict causing dyspnea and s.o.b. yes but the peripheral vascular system especially dilates causing a drop in pressure (if anything). When epi is administered it constricts the blood vessels and increases the contractile force of the heart and blood pressure.
I guess I got confused about it. But with the swelling occuring I guess it could still cause some constriction.