http://www.prescriptiondrug-info.com/threads/Phenergan-D76718_s2.htm Recent Posts About Phenergan at The People's Medicine Community. What are the side effects if there are any on this drug? en-us Copyright 2009 Prescription Drug Info All Rights Reserved. 11/21/2009 4:56:52 PM 20 http://www.PrescriptionDrug-Info.com/threads/Phenergan-D76718_s2.htm#180607 <a href="http://www.PrescriptionDrug-Info.com/Drugs/phenergan.asp" target="phenergan.asp">phenergan</a> is thought to be a drug that causes no side effects..it is given for nausea & sleeplessness..but I had a seizure from it. You should not take it w/ muscle relaxers, Nor w/ certain pain medicines it can cause coma & unconsciousness. Sun, 25 Oct 2009 06:35:00 -0800 http://www.PrescriptionDrug-Info.com/threads/Phenergan-D76718_s2.htm#180417 ALL medications carry the risk of side effects. <br> <br> <br>Some with this medication may include: nausea, drowsiness, dry mouth and constipation. <br> <br>Do you have any other questions? <br> <br> Thu, 22 Oct 2009 21:12:17 -0800