https://rxchat.com/Discuss/Losartan-Sever-reaction-295903_s2.htm?utm_source=forums_posts&utm_medium=RSS&utm_campaign=RSS I only took a single dose before going to be. The next day I woke up with minor itching on the left side of my neck. Then I noticed my neck was getting tight and the left side of my neck was swelling down to the back of my upper shoulder. The losartan was the only thing new that I had taken. Has anyone else had similar happen to them while on this medication? Is it possible to have such a reaction so soon after taking medication. - Filed in Losartan en-us Copyright 2026 RxChat.com. All Rights Reserved. Wed, 16 Dec 2015 01:59:06 GMT 60 https://rxchat.com/images/mc_logo.png https://rxchat.com/Discuss/Losartan-Sever-reaction-295903_s2.htm?utm_source=forums_posts&utm_medium=RSS&utm_campaign=RSS https://rxchat.com/Discuss/Losartan-Sever-reaction-295903_s2.htm?utm_source=forums_posts&utm_medium=RSS&utm_campaign=RSS#r_461889 https://rxchat.com/Discuss/Losartan-Sever-reaction-295903_s2.htm?utm_source=forums_posts&utm_medium=RSS&utm_campaign=RSS#r_461889 Hello, Kimmie! How are you? I'm so sorry about the problem that you experienced. <br/> <br/> Yes, that can happen, if you're allergic to a medication. Have you contacted your doctor? You will most likely need to try something else, because allergic reactions usually continue to worsen with exposure. <br/> <br/> As listed by the FDA, you may also experience trouble breathing, skin rash and hives. <br/> <br/> Wed, 16 Dec 2015 01:59:06 GMT