It Was Never Just the Nicotine: What the Throat Hit Studies Found
In one experiment, researchers dripped nicotine straight into smokers' veins. Craving went down. Satisfaction did not move. Then they handed over a cigarette with the nicotine taken out, and the satisfaction came back.
The short version
- Smoke with no nicotine reduced craving and felt satisfying. Nicotine with no smoke reduced craving and satisfied no one.
- The feeling in the throat and windpipe is a measurable part of why a puff works.
- A nicotine-free inhaler that mimicked that feeling nearly tripled 10-week quit rates when added to the patch. The edge was gone by 6 months.
- Nicotine still matters. The research says both halves count.
The experiment that split the puff in two
Jed Rose ran a nicotine research lab at Duke for decades, and one question kept coming back: if nicotine is the whole story, why does nicotine replacement work so much less well than it should?
In 2000 his team tested 80 smokers. Some received nicotine by IV, matched to the dose they would normally get from smoking. Some received saline. Each was tested with and without a denicotinized cigarette. The cigarette with no nicotine cut craving and was rated satisfying and rewarding. The IV nicotine cut craving too, but delivered no satisfaction. Put the two together and the result felt like a regular cigarette.
Lab study, 80 smokers
Smoke with the nicotine removed cut craving and was rated satisfying. Nicotine given by IV cut craving but produced no satisfaction at all.
The drug and the sensation do different jobs. You need to account for both.
Pharmacology Biochemistry and Behavior, 2000 · Read the study
Where a puff is felt
Fifteen years earlier, Rose had numbed smokers' mouths and airways with a local anesthetic. The instant relief from a puff disappeared. Later work gave the key sensation a name, the tracheal scratch, and found that satisfaction tracked how strongly people felt it.
The route of a breath. The lining of the throat and windpipe is dense with sensory nerve endings.
The trigeminal nerve carries touch, temperature and irritation signals from the mouth and nose. It is why mint feels cool and pepper feels sharp.
Smoke without nicotine
Several labs then tested cigarettes with the nicotine stripped out. At the US National Institute on Drug Abuse, smokers who had gone 12 hours without tobacco found that denicotinized cigarettes eased withdrawal as much as regular ones. A larger follow-up confirmed with blood tests that no nicotine was delivered, and craving and withdrawal ratings still fell.
Lab study, 7 smokers
After 12 hours without tobacco, denicotinized cigarettes eased acute withdrawal symptoms as much as regular ones did.
Pharmacology Biochemistry and Behavior, 1995 · Read the study
The longest test ran 11 days with 30 smokers living in a research unit at Johns Hopkins. Craving relief after each cigarette held up the whole time, with or without nicotine. But the people smoking the nicotine-free version gradually smoked less and worked less hard to earn puffs.
11-day inpatient study, 30 smokers
Craving relief right after smoking held up for all 11 days with or without nicotine, while the drive to smoke the nicotine-free cigarettes faded slowly.
The ritual keeps working for a long time after the drug is gone. It fades, but slowly.
Addiction, 2007 · Read the study
From the lab to a real trial
If the sensation matters, could you replace it with something harmless? Rose's group tried citric acid, the acid in lemons, as a fine mist. In the first test, 15 smokers rated it more satisfying than plain air. A 3-week trial with 74 smokers found that a hand-held version eased craving and low mood.
Then came the real test: a randomized, double-blind trial of 100 pack-a-day smokers. Everyone got the nicotine patch. Half also got the citric acid inhaler, half a placebo inhaler.
Continuous abstinence at 10 weeks
Source: Westman, Behm and Rose, Chest, 1995. At 6 months there was no difference between the groups (0% versus 5.1%). The trial did not test CAPNOS.
Read the footnote on that chart. The inhaler helped people through the first ten weeks, and the more they felt it, the better they did. It did not change where they were at six months. Sensory replacement looks like a tool for getting through the hard stretch, not a cure.
And then there is pepper
In 1994 the same lab gave 48 smokers, fresh off a night without cigarettes, a device to puff on for three hours. One version delivered vapor from black pepper essential oil. One was mint. One was empty. Craving was significantly lower with pepper than with either of the others, and people reported stronger sensations in the chest.
Randomized lab study, 48 smokers
After a night without cigarettes, puffing black pepper vapor reduced craving compared with a mint device or an empty one.
Drug and Alcohol Dependence, 1994 · Read the study
A small study on a Texas college campus later found that two minutes of inhaling black pepper oil from a tissue lowered craving scores.
Set the pull to match what you are used to
CAPNOS Legura
The Legura is a pressurized-air inhaler with adjustable strength. Twist the Bite Cap for a lighter or deeper hit, and add a flavor pod for taste.
- Adjustable pressure, from soft to deep
- Use the Bite Cap alone or with a flavor pod
- Includes Yukamint, Orange Citrus and Peppebacco pods
- No nicotine, no smoke, no battery
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The caveats, stated plainly
- Nicotine still matters. When smoke-free cigarettes were tested with and without nicotine, the nicotine version relieved withdrawal better. The same held for e-cigarettes.
- Expectation is part of it. In a study of 128 vapers, what people were told was in the device shaped how much it reduced their craving.
- Most of these studies are small and measure hours or days. Only a few tracked whether people stayed quit.
- None of these studies tested CAPNOS. The research devices used smoke, citric acid aerosol or pepper vapor. CAPNOS uses flavored pressurized air.
Rose's own summary, in a 2006 review, was that nicotine replacement will stay useful, and that the next gains will come from tools that take the non-nicotine side of smoking seriously.
All of the pull. None of the smoke.
Control the craving
Legura and BRE-Z, bundled
The Legura for a deep, pronounced pull. The BRE-Z for a softer, quieter one. Each comes with three flavor packs.
Questions people ask
What is a throat hit?
It is the physical sensation at the back of the throat and in the windpipe when you inhale smoke or vapor. Researchers call it airway sensory stimulation, or more bluntly the tracheal scratch. In one study, how satisfying a nicotine-free inhaler felt tracked closely with how strong that sensation was.
Can you get that sensation without nicotine?
Yes. Researchers have produced it with citric acid mist, black pepper vapor and cigarettes with the nicotine removed, and in each case it reduced craving in the lab.
Why does the patch not feel satisfying?
A patch delivers nicotine slowly and with no sensation at all. When researchers delivered nicotine by IV, craving went down but people reported no satisfaction. The feel of the puff seems to supply that part.
Is CAPNOS the same as the inhalers in these studies?
No. The research devices delivered citric acid aerosol, pepper vapor, or smoke from denicotinized tobacco. CAPNOS devices deliver flavored pressurized air, with no smoke, no vape juice and no nicotine. CAPNOS has not been tested in these studies and is a behavioral aid, not a smoking-cessation or medical device.
Adjustable air, zero nic
Find your pull
Peppebacco Flavor Pack
Warm blend with black pepper extract. For Legura and BRE-Z.
$7.99
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Keep reading
Sources
- Rose JE, Behm FM, Westman EC, Johnson M. Dissociating nicotine and nonnicotine components of cigarette smoking. Pharmacology Biochemistry and Behavior. 2000. Link
- Rose JE, Tashkin DP, Ertle A, Zinser MC, Lafer R. Sensory blockade of smoking satisfaction. Pharmacology Biochemistry and Behavior. 1985. Link
- Levin ED, Rose JE, Behm F. Development of a citric acid aerosol as a smoking cessation aid. Drug and Alcohol Dependence. 1990. Link
- Butschky MF, Bailey D, Henningfield JE, Pickworth WB. Smoking without nicotine delivery decreases withdrawal in 12-hour abstinent smokers. Pharmacology Biochemistry and Behavior. 1995. Link
- Pickworth WB, Fant RV, Nelson RA, Rohrer MS, Henningfield JE. Pharmacodynamic effects of new de-nicotinized cigarettes. Nicotine and Tobacco Research. 1999. Link
- Donny EC, Houtsmuller E, Stitzer ML. Smoking in the absence of nicotine: behavioral, subjective and physiological effects over 11 days. Addiction. 2007. Link
- Rose JE, Hickman CS. Citric acid aerosol as a potential smoking cessation aid. Chest. 1987. Link
- Behm FM, Schur C, Levin ED, Tashkin DP, Rose JE. Clinical evaluation of a citric acid inhaler for smoking cessation. Drug and Alcohol Dependence. 1993. Link
- Westman EC, Behm FM, Rose JE. Airway sensory replacement combined with nicotine replacement for smoking cessation. Chest. 1995. Link
- Rose JE, Behm FM. Inhalation of vapor from black pepper extract reduces smoking withdrawal symptoms. Drug and Alcohol Dependence. 1994. Link
- Cordell B, Buckle J. The effects of aromatherapy on nicotine craving on a U.S. campus. Journal of Alternative and Complementary Medicine. 2013. Link
- Hajek P, Jarvis MJ, Belcher M, Sutherland G, Feyerabend C. Effect of smoke-free cigarettes on 24 h cigarette withdrawal. Psychopharmacology. 1989. Link
- Bullen C, McRobbie H, Thornley S, Glover M, Lin R, Laugesen M. Effect of an electronic nicotine delivery device on desire to smoke and withdrawal. Tobacco Control. 2010. Link
- Palmer AM, Brandon TH. How do electronic cigarettes affect cravings to smoke or vape? Journal of Consulting and Clinical Psychology. 2018. Link
- Rose JE. Nicotine and nonnicotine factors in cigarette addiction. Psychopharmacology. 2006. Link