local anesthetic Parmaceutical raw materials Lidocaine
Hydrochloride/Lidocaine HCL CAS 73-78-9
Chemical Names: Lidocaine hydrochloride; ; Lidothesin; Xyloneural;
Lignocaine hydrochloride; Laryng-O-jet
CAS number: 73-78-9
Molecular Formula: C14H23ClN2O
Molecular Weight: 270.801 g/mol
In its basic form, lidocaine hydrochloride is a white powder
without smell and with a bitter taste that is used both in human
and veterinary medicine. The drug is also known as lignocaine
hydrochloride, and is used as a local anesthetic and to regulate
certain medical problems related to heart rhythm. Injections of it
are used to provide local anesthesia during various minor surgical
procedures. It is also available in various topical preparations,
such as gels, sprays, creams, and ointments that are usually
applied to the skin or the mucous membranes. This drug was first
manufactured in Sweden in 1943 and was then named xylocaine.
When used for anesthetic purposes, lidocaine hydrochloride works by
blocking certain functions of the nervous system, inhibiting the
transmission of pain impulses from the treated area to the brain.
It is a fast-acting form of local anesthesia that often starts to
work within five minutes. The effects wear off in a relatively
short time, often a couple of hours, because the drug is quickly
metabolized by the liver.
This medication is used on the skin to stop itching and pain from
certain skin conditions (e.g., scrapes, minor burns, eczema, insect
bites) and to treat minor discomfort and itching caused by
hemorrhoids and certain other problems of the genital/anal area
(e.g., anal fissures, itching around the vagina/rectum). Some forms
of this medication are also used to decrease discomfort or pain
during certain medical procedures/exams (e.g., sigmoidoscopy,
cystoscopy). Lidocaine is a local anesthetic that works by causing
temporary numbness/loss of feeling in the skin and mucous
How to use lidocaine HCl topical
Before use on the skin, clean and dry the affected area as
directed. Apply a thin layer of medication to the affected area of
skin, usually 2 to 3 times a day or as directed.
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