Question: I am on metronidazole for giardia and med info said not to use propylene glycol, as if I knew what that was, and I started getting fluttery sensation in throat and down to chest like I had asthma. I brainstormed what it could be and looked into what I might be using with that stuff. I was shocked to see it is a main ingredient in my Zero Alcohol Listerine that I have been using a lot since you can get thrush from the metro. The fluttering came on 30 minutes after taking my ninth 250mg dose of the metro. I saw a combo of that chemical and metro can cause cardiac issues. My fluttering has waxed and waned all day. My doc not in -Labor Day. Do I need ER or can I wait to see her Tuesday. I do not want to have cardiac arrest or whatever ??

Dr. Partap, I did become dizzy and my BP shot up and the palpitations kept happening so I went to ER. I was diagnosed with having PVC activity because my magnesium was low and my potassium was extremely low. I was first immediately checked and then rechecked hours later for a heart attack and all tests came back negative. I was found to also be very dehydrated so I was given IV solution and a magnesium drip as well as a potassium drip, which took hours. The fluttering stopped and my BP stabilized. I was in the ER for 12 hours. The reason all of this happened was a result of the N&V and the watery diarrhea I had had for 12 days before being diagnosed with giardia and then 3 more days of diarrhea after starting the metro med to treat the giardia infestation. I am feeling better now and finished my metro med and my stool is being retested to see if any parasites remain. Thanks.