Nicotine 2 Flashcards
Teen E-Cigarette Use
Teens are more likely to use an e cigarette than a regular cigarette
Teens dont believe that e-cigarettes are harmful
Tolerance
Develops over time
Use grows to 2-2.5 packs per day
Chronic nicotine use results in an increase in the number of nicotinic receptors and a chronic desensitization of the receptors
Withdrawal Signs and Symptoms
Mood: irritability, anxiety, frustration
Physiologic Symptoms: Drowsy, fatigue, restless, difficulty concentrating
Physiologic Signs: Weight gain, decreased heart rate, sleep disturbances, mouth ulcers
Time Course of Withdrawal
Mood changes peak mid week and subside by day 5
Irritability persists for 5 weeks
Hunger and weight gain continue for 10 weeks- often leads subject to relapse
Craving difficult to measure, but found in 66% of subjects
What to tell adolescents
Reduced fertility early menopause decreased athletic ability wrinkles yellowed fingers yellowed teeth
Smokeless Tobacco Pro and Con
Advantages: No lung cancer, less expensive, convenient, more socially acceptable, no second hand smoke
Disadvantages: Increased risk for oral cancer, easier to start using, contains carcinogens
20% of highschool boys and 2% highschool girls use it- Destroys teeth and gums
Difficulties in Treatment
Many unproven or ineffective treatments
One year failure rate for people using commercial clinics, cessation aids or special techniques
No proven method to match a treatment with person
Changing Trends in Treatment
Treatment was aimed at the over learned “habit” of smoking and not on nicotine replacement
Nicotine Replacement method gaining popularity
Application of multiple behavioral techniques with pharmacotherapy has increased success rate 40 to 50 %
Polacrilex (gum)
Oral consumption
Low abuse potential
2 and 4mg usually deliver 1 or 2 mg nicotine
Delivers nicotine on demand
Compliance problems related to chewing demands
Polacrilex (lozenge)
From 2mg delivers 1 mg nicotine
Low abuse liability
Fewer compliance problems than gum
Transdermal Path
Slow even delivery of nicotine
Delivers less nicotine than from one pack
Very low abuse liability
No ability to respond to momentary urges
Overnight use might reduce morning craving
Nicotine Nasal Spray
Used to relieve and/or prevent withdrawal symptoms and reduce cravings
Provides a “safer” alternative to smoking for individuals and those around them
Non-Nicotine based Treatment
Bupropion- antidepressant: reduces withdrawal, helps cessation
Clonidine(antihypertensive)- approved for use alleviated withdrawal
Buspirone (antianxiety) encouraging initial studies
Chantix
Nicotine receptor partial agonist
- Reduces cravings for nicotine
- Decreases pleasurable effects of nicotine
- Treat up to 12 weeks
- One year success rate is 23%
FDA released warning that Chantix may cause mood changes: anxiety, depression, suicidal thoughts
Nicotine Vaccine
Newest concept in treating abuse
Currently in clinical trials
Designing an antibody that would bind to nicotine and make it too big to cross the blood brain barrier