In Comparison to Second-Generation Antihistamines,first-Generation Antihistamines Cause More

Q1: First-generation antihistamines have a longer duration of

Q2: Which of the following mediators plays a

Q3: Antihistamines are used for the treatment of:<br>A)

Q5: Which secondary messenger is associated with H₁

Q6: Which route of administration is preferred is

Q7: Where are H₁ receptors found?<br>A) Stomach<br>B) Smooth

Q8: How many subtypes of H₁ receptors have

Q9: Blocking which histamine receptor would help in