sedation
"Although I have fairly high blood pressure - for which I take medication, and use asthma inhalers to prevent asthma, I have found Phenergan to be absolutely marvelous for insomnia - I have an overactive mind! I find it's best to take it about four hours before I go to bed - then it knocks me out for the night. Sometimes I still feel a bit drowsy in the mornings and have discovered I only need the lowest dose to get a good night's sleep. I only take it the night following a sleepless night. Hope this is helpful."