Pharmacology The following statements regarding histamine are true, except: A It can be used as a positive control injection during allergy skin testing B In the dermis, it evokes pain and sometimes itching C Bronchospasm is induced by histamine by blockage of H2 receptors D It tends to dilate larger blood vessels 💡 Explanation The following statements regarding histamine are true, except: ✓ Correct Answer: D. It tends to dilate larger blood vessels