My vet prescribed L-Lysine for my cat's sneezing (herpes). She told me to purchase a bottle from a drugstore and give 250 mg twice daily.
I just read online that Propylene Glycol is dangerous for cats to consume.
The L-Lysine tablets that I have have "Polyethylene Glycol" listed in the ingredients.
Is this the same thing as Propylene Glycol? Could it be harmful for my cat? Or is it something different?
I plan to stop giving it to my cat for now until I can consult my vet, but I'd love to hear any answers! Thank you very much!
2007-10-09 08:28:17 · 7 answers · asked by nursemarie 3 in Science & Mathematics ➔ Chemistry
This is where I read that Propylene Glycol shouldn't be given to cats:
http://66.218.69.11/search/cache?ei=UTF-8&p=propylene+glycol+cats+lysine&y=Search&fr=yfp-t-501&u=www.veterinarypartner.com/Content.plx%3FP%3DA%26A%3D1327%26S%3D1%26SourceID%3D42&w=propylene+glycol+cats+cat+lysine&d=Mc4WnOdmPlWb&icp=1&.intl=us
Herpesviruses as a group are highly dependent on the presence of an amino acid called arginine. Without arginine, Herpes cannot reproduce. The amino acid lysine is taken up by the virus in favor of arginine. We can take advantage of this situation by saturating the virus with lysine and thus suppressing the virus' ability to replicate. Lysine is readily available in most health food stores as a tablet or capsule. One should be sure that the formula used is free of the preservative propylene glycol as cats can have blood reactions against this compound. A month or so of supplementation is required in order to determine if supplementation has been helpful.
2007-10-09 08:39:15 · update #1
propylene glycol is CH2OH-CHOH-CH2OH. It is poisonous. So is its kid brother ethylene glycol, which is the main ingredient in car anti-freeze. However, the polyethylene glycol is a POLYmer, a molecule that is formed from a base molecule (in this case, ethylene glycol), which is the "repeating unit" in the molecule. The molecule may be hundreds or thousands of units long. In this case, the -OH groups on neighboring molecules are "condensed", yielding one molecule of water, and an "O-O" bond between the two molecules. When this is repeated, you get a polymer. So you have
HO-CH2CH2-O-CH2CH2-O-many times-CH2CH2OH. This is NOT poisonous, and is a common ingredient of gel tablets.
A small joke in passing. A canary was found to have "chirpies". Fortunately, it was "tweetable".
2007-10-09 08:45:44 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
Polyethylene Glycol Vs Propylene Glycol
2016-11-16 10:32:55 · answer #2 · answered by ? 4 · 0⤊ 0⤋
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First off, you need to take it in context. There may be some ingredients that are used in shampoos or other things that you would never dream of swallowing... but some of the ingredients can be very healthy for you. Propylene Glycol is an organic compound that is often used as a moisturizer in medicines (like L-Lysine) and many food products. It can also be used in toothpaste, cosmetics, fragrance oils, tobacco products, sexual lubricants...... but that doesn't make it bad to ingest in certain things. The FDA recognizes it as a generally safe product to be used in food, so it shouldn't have a problem. Polyethylene glycol is used in a number of laxatives and other things you wouldn't want to eat..... but I don't really see why that would be in an L-Lysine product (unless it was specifically formulated for cats or something). L-Lysine is available from many companies in a free form and doesn't really need the Glycols with it. If your vet recommended for you to give your cat L-Lysine, there should be no problem. If you're really worried about it, I'd say to toss that one and get a good L-Lysine that's free form and doesn't have a bunch of stuff it doesn't need.
2016-04-06 22:55:01 · answer #3 · answered by ? 4 · 0⤊ 0⤋
In 2008 the FDA found ethylene glycol and diethylene glycol in all 8 lots of Miralax they tested. The only ingredient in Miralax? Polyethylene Glycol!! Even though it s only trace amounts, taken for a long period of time toxic substances are bound to create health issues.
2016-10-25 02:06:38 · answer #4 · answered by Mike 1 · 0⤊ 0⤋
This Site Might Help You.
RE:
What's the difference between Propylene Glycol and Polyethylene Glycol? Are they both dangerous for cats?
My vet prescribed L-Lysine for my cat's sneezing (herpes). She told me to purchase a bottle from a drugstore and give 250 mg twice daily.
I just read online that Propylene Glycol is dangerous for cats to consume.
The L-Lysine tablets that I have have "Polyethylene Glycol"...
2015-08-07 08:33:50 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Propylene Glycol isn't dangerous for cats, it's ethylene glycol that's toxic. Ethylene glycol is in a lot of anti-freezes, tastes sweet and is toxic. There is propylene glycol in Mountain Dew! It isn't toxic.
Poly-ethylene glycol (PEG) is a completely different beast than ethylene glycol. PEG is used as an additive in a lot of different medication/food products.
Good luck with kitty!
2007-10-09 08:34:02 · answer #6 · answered by Rush is a band 7 · 0⤊ 0⤋
Propylene glycol is not good for animals or humans... I am highly allergic to it... animals have some of the same reactions as we do..
2015-07-01 13:43:50 · answer #7 · answered by southwicswife 2 · 0⤊ 0⤋