<p><strong>Central Nervous System and Neurological</strong>: Restlessness, excitement, nervousness, dizziness, tinnitus, blurred vision, miosis, nausea, vomiting, numbness of the tongue and perioral region, chills, tremors, muscle twitching, convulsions.<br />
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<strong>Cardiovascular System Reactions</strong>: Myocardial depression and peripheral vasodilatation resulting hypotension and bradycardia, ventricular arrhythmia, cardiac arrest.<br />
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<strong>Hypersensitivity</strong>: urticaria, pruritus, erythema, angioneurotic edema ,tachycardia, sneezing, nausea, vomiting, dizziness, syncope, excessive sweating, elevated temperature, and possibly, anaphylactoid reactions.</p>