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What Is Cetrimide?

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  • Written By: M. Haskins
  • Edited By: Heather Bailey
  • Last Modified Date: 15 July 2014
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    Conjecture Corporation
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Cetrimide is an antiseptic agent, meaning it has various antibacterial, antifungal and other antimicrobial properties and can be applied to skin or mucous membranes to avoid or minimize the risk of infection. It is also a surfactant, meaning it functions as a detergent with cleaning properties. As a pharmaceutical ingredient, it is used in various products like sprays, liquids, and creams for a range of purposes, including cleaning burns and wounds, for disinfecting skin before injections or surgery, and in diluted form as a treatment for sore gums. Cetrimide is also used to clean and disinfect surgical instruments. Some shampoos and conditioners, including varieties used to treat seborrhea and psoriasis, also contain this antiseptic as an active ingredient, because of both its antimicrobial and detergent properties.

The antiseptic properties of cetrimide are due to its ability to damage the cell membranes and destroy the cellular structure of many different microorganisms that can cause disease, including many kinds of bacteria, fungi, and various single-celled organisms. However, it is not effective against all bacteria, or against spores, or viruses. It is sometimes mixed with clorhexidin, another antiseptic, when used to disinfect wounds.

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Cetrimide is a relatively new antiseptic, and has certain advantages compared to some older types of antiseptics like phenol, also known as carbolic acid, which was commonly used as an antiseptic agent in the form of carbolic soap until the 1970s. For example, unlike phenol, cetrimide is non-toxic when used topically, meaning when it is applied to the skin or mucous membranes, and is also less irritating to skin compared to carbolic acid. Both these properties mean it can be used more frequently with less chance of irritation or other side effects. It also has a residual effect, meaning it keeps protecting the treated area from infection for some time after application.

Disadvantages of using cetrimide as an antiseptic include that it can cause wounds to heal slower, some bacteria can build up a resistance to it, and its effectiveness can be reduced if there is a large amount of pus or other bodily fluids present in the wound. It is also not recommended for use in body cavity wounds. This antiseptic has few side effects when used as directed, but will cause nausea and vomiting if ingested. In rare cases, cetrimide can cause skin rash. Such irritation can also happen in rare cases when using a cetrimide shampoo, and one should discontinue use immediately if this occurs.

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Discuss this Article

anon211301
Post 3

I've been suffering from psoriasis for the last five years, but I've been getting results from using cetrimide lotion twice or thrice a week; it really helps to remove the flakes. It's a very good lotion, but this is not enough to get rid of psoriasis. The patient needs a proper medical treatment.

Monika
Post 2

@strawCake - Cetrimide is quite useful. I don't know of that many substances that are effective against both bacteria and fungus.

I've actually used a rise with cetrimide in it for sore gums. I remember the cetrimide was the main ingredient, although the actual percentage wasn't very high. At the time I didn't know it had any antibacterial properties though-I actually thought it was just a pain reliever or something.

strawCake
Post 1

I just checked my psoriasis shampoo and it has cetrimide in it. The shampoo works really well for me and I've never experienced any unpleasant side effects.

I think it's really neat this stuff has a residual effect. However, I will keep in mind the fact that cetrimide can cause wounds to heal slower. I guess if I ever experience a head wound I'll switch shampoos for awhile!

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