http://www.medications.com/se/Plaquenil+Sulfate Recent side effects for Plaquenil Sulfate Thu, 27 Mar 2008 23:12:59 -0400 http://www.medications.com/effect/view/28491 My Rheumatoid Arthritis doctor prescribed this for me and it gives me severe headaches! I can't take prednisone so this was it. Has anyone else been effected this way? http://www.medications.com/effect/view/28491 Wed, 03 Oct 2007 11:49:04 -0400 http://www.medications.com/effect/view/24086 My husband was given plaquenil as a substitute for prednisone which was causing him severe weakness and weight loss. The plaquenil has caused ringing in his ears and he has experienced a strange twitching sensation inside his head which we are not sure if http://www.medications.com/effect/view/24086