Nytol (Diphenhydramine) Is A Type Of Medicine Called A Sedating Antihistamine, Unlike Loratadine Or Fexofenadine, Diphenhydramine Is A Sedating Antihistamine Used To Reduce The Time Taken To Fall Asleep & Allergic Reactions (Treating Allergic Rhinitis, Such As Sneezing, Rhinorrhea, Pruritus And Lacrimation), Diphenhydramine Causes Drowsiness By Having An Effect On The Brain, It Decreases The Time Taken To Fall Asleep And Increases Deep Sleep. Diphenhydramine Is Helpful For The Temporary Relief Of Sleeping Difficulties, For Example If You Have Difficulty Going To Sleep Or Staying Asleep Because Of Disturbances To Your Normal Routine, should be taken 20 minutes before going to bed to aid sleep.

Sominex (Promethazine) is a type of medicine called a sedating antihistamine, Unlike loratadine or fexofenadine, Promethazine is a sedating antihistamine used to reduce the time taken to fall asleep & allergic reactions (treating allergic rhinitis, such as sneezing, rhinorrhea, pruritus and lacrimation), Promethazine causes drowsiness by having an effect on the brain, it decreases the time taken to fall asleep and increases deep sleep. Promethazine is helpful for the temporary relief of sleeping difficulties, for example if you have difficulty going to sleep or staying asleep because of disturbances to your normal routine.