Burning in throat

[paladinx]

Thats what i mean about the variables. I raise questions on here that have already been discussed to death on this forum, and some of the long time posters here get fed up with the same old concerns.

But U know, Its like, even if pg is non toxic, even if smoking it does not destroy your cilia or give u lung cancer or shortness of breath. If the PG can be some kind of sticky substance that coats your lung passages, could that be a good thing or a bad thing? Maybe it helps clear ur lungs out, maybe it does the opposite? It attracts all the dirt and pollution in the air over time? Maybe after years it builds up and starts to effect ur respiratory system? or even still maybe ur body gets rid of pg in the lungs very effectively. I dont know, I mean im sifting through information just havent found the answers to all of the questions yet. They might not be there, or maybe i just overlooked them.

[taz3cat]

I have found that different flavored pg give a different throat hit as in burny feeling, especially using a USB pass through (runs hotter). I think I am going to mixing my own using tasteless/naked. then I know more about what is in the juice.

[GreySaber]

Paladin, I quite agree. I expect we will see some issues with the overuse of PG in the future, especially when you compare how muhc we vape to how often it is applied in other forms. I imagine we may see several more alternetive mediums appear in future years, which may or may not be better.

But we should always compare the E-cig to the real-cig, and there it wins everey time. It's probley still bad for us if examined in a vacume, as such, we must not allow it to be examined in a vacume. It must ALWAYS be a comparicent to recular cigarettes....

And there's no reason we can't see them improve by leaps and bounds in the next few years. Even if they are banned in the states, they won't be banned everywhere, and as such, devolopment will contenue.

[ournature]

hi there,
below you can read some potential health effects of PG, source is wikipedia (Propylene glycol).
it looks like it shouldn't be that much toxic, but it can irritate a lot for sure.
specially if the vaped liquid you inhale is about 80% PG, like most e-liquids.
i really think e-liquid suppliers and manufacturers should look on this and replace this element...

Potential health effects

EyeCauses mild eye irritation. Contact may cause irritation, tearing, and burning pain.SkinCauses moderate skin irritation. Contact with the skin may cause erythema, dryness, and defatting.IngestionMay cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling. May cause hemoglobinuric nephrosis. May cause changes in surface EEG.InhalationLow hazard for usual industrial handling. May cause respiratory tract irritation.ChronicMay cause reproductive and fetal effects. Laboratory experiments have resulted in mutagenic effects. Exposure to large doses may cause central nervous system depression. Chronic ingestion may cause lactic acidosis and possible seizures. The oral toxicity of propylene glycol is very low, and large quantities are required to incur the dangerous effects described above. The potential for long-term toxicity is also low. In one study, rats were provided with feed containing as much as 5% PG over a period of 104 weeks and they showed no apparent ill effects.[6] Because of its low chronic oral toxicity, propylene glycol is generally recognized as safe (GRAS) for use as a direct food additive. Cases of propylene glycol poisoning are related to either inappropriate intravenous use or accidental ingestion of large quantities by children.[7]
Serious toxicity will occur only at plasma concentrations over 4g/L, which requires extremely high intake over a relatively short period of time.[8] It would be nearly impossible to reach toxic levels by consuming foods or supplements, which contain at most 1g/kg of PG. Propylene glycol is metabolized into pyruvic acid, which is a normal part of the glucose metabolism process and is readily converted to energy.
Veterinary data indicates that propylene glycol is toxic to 50% of dogs at doses of 9mL/kg, although the figure is higher for most laboratory animals (LD50 at levels of 20mL/kg).[9] However, it may be toxic to cats in ways not seen in other animals. The U.S. Food and Drug Administration has determined that propylene glycol in or on cat food has not been shown by adequate scientific data to be safe for use. If propylene glycol is used in or on cat food, the food is considered adulterated and in violation of the Federal Food, Drug, and Cosmetic Act.[10]
Prolonged contact with propylene glycol is essentially non-irritating to the skin. Undiluted propylene glycol is minimally irritating to the eye, and can produce slight transient conjunctivitis (the eye recovers after the exposure is removed). Exposure to mists may cause eye irritation, as well as upper respiratory tract irritation. Inhalation of the propylene glycol vapors appears to present no significant hazard in ordinary applications. However, limited human experience indicates that inhalation of propylene glycol mists could be irritating to some individuals. Therefore inhalation exposure to mists of these materials should be avoided. Some research has suggested that propylene glycol not be used in applications where inhalation exposure or human eye contact with the spray mists of these materials is likely, such as fogs for theatrical productions or antifreeze solutions for emergency eye wash stations.[11]
Propylene glycol does not cause sensitization and it shows no evidence of being a carcinogen or of being genotoxic.[12][13]
There is limited evidence that intravenous injection of PG can cause adverse responses in a small number of people. A Clinical Journal of Medicine article describes two cases of adult men experiencing psychosis from use of injected phenytoin that contained PG as a solvent. Their symptoms resolved when they were switched to a phenytoin formulation without PG.[citation needed]

[edit] Allergic reaction

Research has suggested that individuals who cannot tolerate propylene glycol probably experience a special form of irritation, but that they only rarely develop allergic contact dermatitis. Other investigators believe that the incidence of allergic contact dermatitis to propylene glycol may be greater than 2% in patients with eczema.[14]
Patients with vulvodynia and interstitial cystitis may be especially sensitive to propylene glycol. Women struggling with yeast infections may also notice that some OTC creams can cause intense burning.[15]Post menopausal women who require the use of an estrogen cream may notice that brand name creams made with propylene glycol often create extreme, uncomfortable burning along the vulva and perianal area. In these cases, patients can request that a local compounding pharmacy make a "propylene glycol free" cream.

[GreySaber]

I have found the itching I experinced has deminished. I have also switched E-juice to a few flavors from Smoke Liberation.

[happily]

My guess is tobacco companies had years to make their deadly cocktails "side effect free" by adding chemicals to offset any irritations

[olderthandirt]

Hey denec, how's the throat doin'?

Like so many have said before, drinking plenty of water does help.

[dirtyc]

So what is it (most likely) that is causing my throat itch - the proplyene glycol or the nicotine?

I smoke lights half the time, marlboro reds the other half of the time (which obviously have a harsher "throat hit") - but neither compares to the harshness of my e-cigarette.

[GreySaber]

So what is it (most likely) that is causing my throat itch - the proplyene glycol or the nicotine?

I smoke lights half the time, marlboro reds the other half of the time (which obviously have a harsher "throat hit") - but neither compares to the harshness of my e-cigarette.

I cannot know myself, but do not discount the flavoring as a possibility.

[ironlung]

i noticed the same coating. I have not been vaping for long maybe 2-3 weeks & I am thinking all the liquid is not totaly vaporizing when we are vaping. pg vg would not matter at that point. how ever it was said that vg seems to create more vapor than pg but is more expensive. If this is true that it makes more vaper than it is possible that it vaperizes more efficiantly hience; no more coating or less coating on the throat. I first stopped smoking analogs with nicotine inhalers & did not have that coating until vaping. I realy do not know what is in the liquid or how it is made,& orif thereare health risk's but i do know C.O.P.D is cuased by smoking analogs & analogs are killing a large number of us. my opinion, vape on!!!!!!!!analogs are proven to kill vape has not been proven.LOL!!! pull the trigger on a gun you know has a bullet in the chamber or a gun that may or may not have a bullet in the chamber, I rarely have an analog lately, but I vape an awful lot. have a GREAT NIGHT, later