The drug is usually well tolerated by patients, but the following side effects are possible:
From the central nervous system (depends on the magnitude of the applied dose): headache, loss of consciousness until its loss, breathing disorders until it stops, muscle tremor, involuntary twitching of the muscles, sometimes progressing up to generalized seizures;
On the part of the digestive system: nausea, vomiting, diarrhea;
From the side of the organ of vision: rarely - "clouding" in the eyes, transient blindness, diplopia.
From the side of the cardiovascular system: Moderately severe disorders hemodynamics, manifested in lowering blood pressure, tachycardia or bradycardia, inhibiting cardiovascular activity, which in extreme manifestation can lead to collapse and cardiac arrest, which threatens the patient's life. Allergic reactions: edema or inflammation at the injection site; in other areas - reddening of the skin, itching, conjunctivitis, rhinitis, angioedema of various degrees (including edema of the upper and / or lower lip and / or cheeks, glottis swallowing difficulty, hives, difficulty breathing). All these phenomena can progress to the development of anaphylactic shock.
Local reactions: edema or inflammation at the injection site; the appearance of ischemic zones at the injection site (up to the development of tissue necrosis - with a random intravascular injection);
Other: often there are headaches associated, probably, with the presence of epinephrine in the formulation; other side effects caused by the action of epinephrine (tachycardia, arrhythmia, increased blood pressure), are extremely rare; nerve damage (up to the development of paralysis) - occurs only when the technique of injection is disturbed.