Can't find action for Benzocaine

RNShenanigator · Jul 28, 2009

My Mosby's and Davis drug books says it inhibits conduction of nerve impulses from sensory nerves.

Hope that is what you are looking for.

Daytonite, BSN, RN · Jul 28, 2009

benzocaine - an ester local anesthetic comes as a topical cream or spray. produces nerve block by inhibiting nerve conduction. the ester local anesthetics have short or moderate duration of action because they interact with nerve membranes to inhibit sodium ions from crossing the membranes. if sodium ion movement is inhibited, nerves cannot depolarize, and conduction of impulses along the nerves is blocked [page 99, pharmacology: an introduction, 5th edition, by henry hitner and barbara nagle]. as the local anesthetic wears off, is carried away by the circulation and metabolized, the action of the anesthetic ends.

deemarys · Jul 29, 2009

Thanks ladies, I have a Saunders Nursing Drug book 2009, I bought a Mosbys one so hopefully that will help. I can't find alot of the anesthetia meds in Saunders :/

tlc2u · Jul 30, 2009

You have gotten great answers already. However; since I learn from answering questions also, I'll add what I found.

Ester-type Drugs

-benzocaine (Americaine, Solarcaine, others)

-topical anesthesia (an = without, thesia = sensation)

-for sunburn,sore throat, earache, hemmorhoids and other minor skin conditions

Local anesthetics are drugs that produce loss of sensation to a limited part of the body. They are sometimes called sodium channel blockers. Recall that the concentration of sodium is higher outside neurons than inside. Sodium must move into the cell for neurons to fire and conduct an electrical impulse. Local anesthetics produce a numbing effect in a region by blocking sodium channels.

[page 166, Core Concepts In Pharmacology, by Michael Patrick Adams and Normand Holland].

TOPICAL ANESTHETICS

-Mechanism of action

-Benzocaine, cocaine, lidocaine, tetracaine..., block nerve impulse transmission, they accumulate in the nerve cell membrane, causing it to expand and lose its ability to depolarize.

-Block nerve transmission and interfere with pain perception.

[Straight A's in Nursing Pharmacology. Baltimore, Md.: Lippincott Williams & Wilkins, 2004.]

I don't know about the 2009 but in my 2005 Saunders Drug book some drugs that are not referred to individually are covered in the appendix at the front or back of the book. The uses and Action of Local Anesthetics are covered in the classification section at the front of my drug book.

When I was in nursing school I was so busy just looking up the drugs I didn't really look at the appendix. Now I am finding the classification section in the front of my book to be an excellent resource for learning drug names, their classes and their actions. Also we received a 'pharmacology textbook' in our beginning packet of books however with all the other reading and studying we had to do we rarely had time to open this book. NOW I am finding this book would have provided me a better understanding than just looking up the drugs in my drugbook.

I am finding it helpful to read a book written in simple terms first to get a basic knowledge of a subject before I read a book that is written more in depth. Books like "Nursing Made Easy" or "Reveiws and Rationales" or "Straight A's in Nursing" can help give a basic understanding.

Hope that helps.

Hoedd · Nov 30, 2009

benzocaine - an ester local anesthetic comes as a topical cream or spray. produces nerve block by inhibiting nerve conduction. the ester local anesthetics have short or moderate duration of action because they interact with nerve membranes to inhibit sodium ions from crossing the membranes. if sodium ion movement is inhibited, nerves cannot depolarize, and conduction of impulses along the nerves is blocked [page 99, pharmacology: an introduction, 5th edition, by henry hitner and barbara nagle]. as the local anesthetic wears off, is carried away by the circulation and metabolized, the action of the anesthetic ends.

pleaseeeeeeeeee people.. i really need to know the place of publication and the publisher of this book..

pharmacology: an introduction, 5th edition, by henry hitner and barbara nagle (2004).

i registered here specifically for this. if someone has this book can you please look it up for me. i need it before tomorow 11.30am..

tlc2u · Dec 1, 2009

with google search you can find most anything!!!

http://www.worldcat.org/oclc/54007043&referer=brief_results

found here at the library of congress:

main title:pharmacology : an introduction / henry hitner, barbara nagle.edition information:5th ed.published/created:boston : mcgraw-hill, c2005.description:xiii, 598 p. : ill. ; 27 cm.isbn:0078600340 (alk. paper)links:table of contents