In some embodiments, the formulation is an aqueous solution containing insulin (e.g., 100 units/mL), glycerol, phenol, m-cresol, zinc chloride, sodium chloride, disodium phosphate dihydrate, water for injections, and hydrochloric acid and/or sodium hydroxide (for pH adjustment)
Multiple factors unrelated to the medication may cause respiratory symptoms, including underlying cardiovascular disease, obesity-related conditions like sleep apnea, worsening GERD from delayed gastric emptying, anxiety or panic attacks, concurrent medications affecting breathing, or unrelated respiratory infections
Allen MR, Metzger CE, Chen NX, Tinsley IC, DiMarchi RD, O'Neill K, Matter EK, Moe SM
This increase is a known effect, and some people may feel it as a fast or pounding heartbeat at rest