a vasoconstrictor classified as a category i inhalant decongestant is the drug propyl-hexedrine. inhalers also contain substances such as menthol eucalyptol and camphor although their effectiveness as decongestants has not been substantiated. relief from congestion occurs between 30 seconds to 5 minutes and persists for 30 to 120 minutes following two inhalations. the inhalers retain their effectiveness for 2 to 3 months. vicks inhaler comes under this category. hence it does not contain antihistamine
does vicks inhaler contain any antihistamine?