Antihistamines, Decongestants, Antitussives, and Expectorants

Question 1

Antihistamines

Answer 1

prevents histamine from attaching to its receptors in the body, which helps to reduce or stop allergic symptoms

Question 2

H1-antagonist

Answer 2

Treatment for allergic rhinitis
- relieve the symptoms of common cold

Question 3

Antihistamines: nonsedating

Answer 3

• Loratadine
• Cetirizine
• Fexofenadine

Question 4

Nasal Decongestants

Answer 4

Work to turn off the immune system cells involved in the inflammatory response

Question 5

Antitussives

Answer 5

Used to stop or reduce coughing
- Primarily used only for nonproductive coughs.

• Opioids: suppress the cough reflex by direct action on the cough centre in the medulla.

Question 6

Expectorants

Answer 6

Drugs that aid in the removal of mucus
- Reduce the viscosity of secretions
- Disintegrate and thin secretions
Ex: Guaifenesin