Side effects in only 4 days!! I just filmed my day four video and had side effects within the hour. Please view my short journey on Cymbalta. After some time, I started to get the Cymbalta side effects, it caused me panic attacks, I couldn't breath, high BP. I talked to my doctor and he also prescribed me Xanax to relieve from the the side effects of Cymbalta. Find patient medical information for Cymbalta Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Hi bayosgirl. I'm sorry that Cymbalta was such a difficult (and disappointing) experience for you. When a medicine doesn't work and the side effects are bad, it is worse sometimes than the depression itself. Along with its needed effects, duloxetine (the active ingredient contained in Cymbalta) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. When you’re struggling with depression…it’s hard. It’s hard to do just about anything. People who don’t understand will say, “Just exercise,” or, “Be positive.” Possible Side Effects of Cymbalta A major concern in mixing CBD and Cymbalta is how CBD can exasperate already possible negative side effects. Side effects largely depend on the individual patient, their chemical makeup, and what Cymbalta is prescribed to them for. Nausea, headache and a dry mouth are among the most common side effects of Cymbalta. In rare cases, patients have suffered serious — and sometimes fatal — side effects, including liver damage, abnormal bleeding, and suicidal thoughts and behaviors. how to positive effects of cymbalta for UEFA Europa League. FIFA World Cup. England Premier League.