This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Side effect of nasal decongestants is ? 
Select and explain. 
A. Anosmia, B. Dryness of nasal mucosa, C. Decreased vision, D. Hyperosmia
A: Anosmia
Answer: A: Anosmia 
Explanation: Ans. is'a'i.e., AnosmiaNasal decongestantsNasal Decongestants: Ephedrine, Pseudoephedrine, Phenylpropanolamine, Phenylephrine, Xylometazoline, Oxymetazoline, Naphazoline.Adverse drug reactions include local initiation, tolerance, afier congestion, damage to mucosal cilia, atrophic rhinitis, anosmia.