This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
The drug used to treat dry mouth in cancer chemotherapy is 
Select and explain. 
A. Oxotremorine, B. Methacholine, C. Cevimeline, D. Pilocarpine
C: Cevimeline
Answer: C: Cevimeline 
Explanation: Cevimeline increase salivary secretions and has a specific use in Sjogren's and xerostomia It is a parasympathomimitic and muscarinic agonist with paicular actions on M1 and M3 receptors. Ref: HL Sharma.3rd ed. Pg 138