Lidocaine hydrochloride has the characteristics of strong penetration, strong diffusion and rapid onset. Its anesthetic efficacy is twice that of procaine, and its toxicity is 1. Anesthetic effect can appear 5 minutes after administration, and the anesthetic effect can last for 1 to 1.5 hours, which is 50% longer than procaine. After absorption, it can inhibit the central nervous system and ventricular automaticity, shorten the refractory period, and can be used to control ventricular tachycardia and treat arrhythmia symptoms such as ventricular premature beats, ventricular tachycardia and ventricular fibrillation. It is effective for arrhythmias caused by heart diseases or cardiac glycosides, but not for supraventricular tachycardia. This product has a fast effect, short duration, and is ineffective when taken orally. It is often administered as an intravenous injection.
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