Formoterol / mometasone and Heart Palpitations: What Users Say

• Sus...
• May 13, 2017

For Asthma "I took Dulera 200 for about 3 months. After a month, I experienced heart palpitations (heart rate from 80 to 188 in seconds). At first, it would only last 2-3 minutes. Then, palpitations lasted over an hour, then two hours. Ended up in the ER four times, twice to receive an IV drug to reset and slow my heartbeat. The cardiologist at the hospital put me on Diltiazem to control my heart rate. It lowered blood pressure (was already good), but did not stop heart palpitations. Began having breathing problems, and the doctor increased the Diltiazem dosage. Experienced worse breathing issues and loss of bladder control. Finally realized the Diltiazem caused breathing problems and Dulera was causing the racing heart palpitations. Nightmare!"

• Pea...
• Taken for 1 to 2 years
• May 17, 2016

For Asthma "Took Dulera for a year for pretty bad asthma, which it controlled very nicely. After one year, the Dulera started giving me awful palpitations, severe pounding pulse, shakiness, and insomnia. I had to give it up. I feel better now after 3 weeks without it, but still cannot find a good replacement."

• Mim...
• Taken for less than 1 month
• March 22, 2020

For Asthma "After an asthma attack a month ago, a doctor at urgent care prescribed me this. A week later, I saw my allergist, who told me to stop Dulera. She put me on Singulair. I was not able to pick up my prescription, so I continued using Dulera. The first week of using it, I could breathe a lot better, however, now, after a month of use, my body has experienced chest tightness, lung twitching, and heart palpitations. My body feels off. I don’t like the chest tightness and weird heart palpitations. I will be discontinuing this until I get my other asthma medication."

• Mar...
• January 13, 2021

For Asthma "I was prescribed Dulera as an alternative to Advair when my insurance stopped covering it. I was skeptical at first, having a positive response from Advair. After 2 weeks of taking Dulera, not only did my asthma symptoms worsen, but I started experiencing other horrible symptoms, including chest tightness, heart palpitations, severe headache, nervousness, fogginess, and fatigue. I also developed excruciating abdominal pain that radiated from front to back, similar to severe period cramping, but deeper and throbbed. I immediately stopped taking Dulera, but this cramping pain never went away. I eventually went to several specialists, including an OBGYN, who could only conclude that I had a dormant/mild form of endometriosis that was exacerbated by Dulera. Years later, I still suffer from this pain, with no cure or remedy - I can only hope to find others with a similar story so we can file a class action suit against them. This medicine is dangerous."

• Suz...
• December 6, 2019

For Asthma "I've been on Dulera for the past year or more. It helped significantly. However, I've used up the coupon where it only costs $15, and now it is $405, and I can no longer afford it. After reading that others have had shaky hands, heart palpitations, and weight gain, I'm realizing that I have those issues too, and it might be the Dulera. I guess I'll find out since I'm not taking it anymore. :("