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Users also reported the new nicotine delivery method was more tolerable in comparison to the current inhaler because it caused less throat tenderness.

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"We wanted to replicate the feeling of smoking without incurring the dangers with cigarettes, and we wanted to take some action more effectively than this nicotine replacement therapies currently available, " said Jed Increased, Ph. D., director of the Duke Center for Smoking and Smoking Cessation Research in which the technology is being developed. He presented the data today in the Society for Nicotine and Tobacco Research (SRNT) with Baltimore, MD.

The Nicotrol inhaler can be a smoking cessation therapy which delivers nicotine vapor on the mouth and upper airways, but little of the idea reaches the lungs.

Duke's new technology employs a unique method to deliver nicotine to the lungs. In today's presentation, the researchers show the brand new lung delivery technology brings about rapid absorption of nicotine that provides immediate relief of withdrawal symptoms and also re-creates some of the familiar sensations that are generally pleasurable to smokers.

Current methods that deliver medicine on the lungs -- metered serving sprays, dry powder inhalers or nebulizers that induce a fine mist don't replicate the natural inhalation made use of by smokers when drawing for a cigarette. And, because medication residue often deposits inside mouth and throat, doses aren't always high enough to ensure the appropriate amount reaches this lungs.

Duke's new technological know-how combines the vapor stage of pyruvic acid, which occurs naturally in your body, and nicotine. "When the 2 main vapors combine, they mode a salt called nicotine pyruvate, " explains Increased. "This reaction transforms invisible gas vapors into a cloud of microscopic particles which is inhaled, just like a smoker inhales from your cigarette. "

In a survey of the new Fight it out technology, nine healthy smokers inhaled 10 puffs associated with nicotine pyruvate in rising doses, 10 puffs from your Nicotrol/Nicorette inhaler cartridge, and 10 puffs of room in your home air (placebo). Blood was drawn just before and after each number of inhalations. When the results were analyzed, the Duke researchers noted rapid increases in plasma nicotine concentrations following the nicotine pyruvate inhalations and less complaints of harshness/irritation in comparison to the Nicotrol/Nicorette control cartridge. The smokers also said their cravings for smoking were substantially alleviated following the nicotine pyruvate inhalations.

"Compared to the present nicotine vapor inhaler, we could give smokers more smoking, although still less compared to a cigarette, with less tenderness, resulting in reduced yearnings, " said Rose. "Thus we could achieve a therapeutic effect with greater tolerability. "

More research is needed to examine the safety and effectiveness of prolonged use of the inhalation system, and to assess its role in helping people quit smoking. Nevertheless, Rose says if just about all goes well, he anticipates the product could become commercially available within three to five years.

He also says that novel inhalation system may eventually prove useful for sending of other medications. Duke has filed patent applications on the new technology, which has been invented by Rose and his colleagues.

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