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www.endsmoking.org.nz October 2010
1
Three policy options to reduce nicotine in combustible tobacco sold in NZ by 2020:
with special focus on Nicotine tax
Murray Laugesen, End Smoking NZ trust
Nick Wilson, University of Otago, Wellington
Paper presented at APACT Conference, Sydney, 8 October 2010
www.endsmoking.org.nz October 2010
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GlossaryHN = high nicotine = most cigarettes sold today.MN = medium nicotine LN = low nicotineVLN = very low nicotine. RNC = Reduced nicotine cigarette, nicotine yield
proportional to nicotine content.Yield =smoke-machine-measured nicotine.
Content =nicotine in an unlit cigarette
www.endsmoking.org.nz October 2010
3
Three policy options to reduce nicotine
1) Mandated sinking nicotine content, all brands together.
Lower nicotine content -20% p.a. Little effect until 80% reduced. (USA FDA could do this in future)
2) Mandate increase in VLN share of sales by 20% p.a. However there is no economic incentive to buy these
VLN cigarettes.
3) Nicotine tax makes VLN cigarettes a smart way for smokers to avoid paying more for their smoking.
Similar to a tax on tobacco content.
www.endsmoking.org.nz October 2010
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Justification for taxing nicotine in combustible tobacco products
Smoking is highly addictive. - NZ Health warning.
85% of NZ smokers want cigarettes to be less addictive
- Thomson G, Wilson N, Edwards R.
Letter, NZ Med J. 2010;123(1308).
www.endsmoking.org.nz October 2010
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Nicotine content of leading brands, NZ 1997 per 0.7 g moist tobacco cigarette
0
5
10
15
20
FM regular FM regular FM regular FM Mild RYO regular RYO regular
Nic
oti
ne
con
ten
t m
g
Blakely, Laugesen, Symons, Fellows, NZ Health Report 1997; 4:33-34,85
Nicotine content of all cigarettes is at least five times the 2 mg content (0.2 mg yield) per cigarette needed, at 25 cigarettes daily, to equal the addiction threshold.
www.endsmoking.org.nz October 2010
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Nicotine content, yield and tax
Nicotine content
mg*
Nicotine
yield
mg*
Nicotine tax
$ / cigarette
proposed
High HN 12 0.8 1.00
Medium MN 8 0.6 0.75
Low LN 4 0.4 0.50
Very low VLN 2 0.2 0.00
*Benowitz 2007 **most NZ brands 1997
**
www.endsmoking.org.nz October 2010
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The concept of a nicotine threshold
A threshold implies that addiction only begins to decline markedly below the threshold.
• Nicotine threshold = total of nicotine absorbed needed to sustain addiction.
• Estimated at 5 mg per day (Benowitz and Henningfield 1994)
• 5 mg = up to 25 VLN of (0.2 mg machine yield), or 6 HN of 0.8 mg machine yield.
• Further research needed on the actual threshold so as to include 90-95% of smokers. A range may be needed.
www.endsmoking.org.nz October 2010
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Testing and labeling for nicotine content
• Government publishes a list of government approved laboratories, independent of industry, whereby manufacturers can arrange nicotine content and yield testing at their own expense.
• Government requires all brands sold to be labeled for nicotine content in mg per cigarette, from 6 months before the nicotine tax takes effect.
www.endsmoking.org.nz October 2010
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Tax nicotine content, not yield
• Tobacco excise is levied on tobacco content. • Nicotine tax is extra, and levied on nicotine
content. • Tax is levied per milligram of nicotine content
per average unburnt cigarette. eg $1 per HN cigarette
• VLN cigarettes are much less addictive and would attract zero nicotine tax.
• As nicotine content rises above threshold, tax rises steeply at first and less steeply thereafter.
www.endsmoking.org.nz October 2010
11
Nicotine yield and price choices
for smokers paying nicotine tax
0
10
20
30
40
50
0 5 10 15 20mg nicotine yield per pack
$ p
rice p
er
pack
20 LN
20 MN
20 HN
1-2 HN + 18 VLN
Nicotine threshold for maintaining addiction 5 mg/day
Price of 20 cigarettes, all HN, 2010
Estimated from pervious slides
www.endsmoking.org.nz October 2010
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Research evidence
• Reduced nicotine content cigarette studies –Benowitz 2007. Lowers smokers’ addiction.
• Review Hatsukami Tob Control 2010;19 e1-e10. Nicotine reduction is an important area for research
• Denicotinised cigarettes – can reduce motivation to continue smoking by 30% but not by 100%. (Brody 2009)
• Clinical simulations of policy eg Johnson 2004 needed to ensure accurate national statistical modeling of addiction policy (Cavana 2008)
www.endsmoking.org.nz October 2010
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More questions
Major immediate and permanent reduction in sales? As tax increases price of HN, nicotine consumption should fall.
Could Industry pricing soften nicotine tax effect? Board game simulations needed.
Will the tax over the long term enhance quitting? Yes, if at every quitting attempt the smoker is less addicted..
Risk of blackmarket? HN cigarettes though expensive, will be legally on sale in all shops.
End game role? More useful as a component of a more comprehensive policy? - as End Smoking NZ has proposed www.endsmoking.org.nz/Fourpolicies14May2010.pdf
www.endsmoking.org.nz October 2010
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Expected industry response
• Nicotine tax pressures manufacturers to sell less nicotine in the average cigarette.
• Government may wish to ban composite packets of high and low nicotine, which would otherwise allow manufacturers to control the smoker’s nicotine choices.
www.endsmoking.org.nz October 2010
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Tax forces change at the factory - Commercial Cigarettes become RNCs
• Today’s Commercial Cigarette contains far more nicotine than needed for maintaining addiction.
• After nicotine tax, all cigarettes except HN will contain much less nicotine, and function like Reduced Nicotine Content cigarettes (RNCs).
• RNCs minimise compensatory smoking
www.endsmoking.org.nz October 2010
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Expected industry pricing response
• Manufacturers if permitted, might wish to discount the price of high nicotine cigarettes to offset the effect of nicotine tax, and so keep smokers addicted.
• SFE Act could be amended to outlaw this practice.
• Or, the nicotine tax might be increased.
www.endsmoking.org.nz October 2010
17
Expected smoker responses
• Most smokers will inhale less nicotine. • Smokers could smoke 1-2 HN cigarettes to start the day
and use 18-19 VLNs over the rest of the day to minimise their nicotine tax and still obtain nicotine satisfaction.
• More quit attempts, more success in quitting.
• Nicotine becomes a luxury, to be savoured. Wealthy smokers could pay up to $20 per day for nicotine.
www.endsmoking.org.nz October 2010
18
Biological effect on smokers who, not wishing to quit, switch to very low
nicotine (VLN) cigarettes
• Cigarettes smoked per day: halved • Addiction score (FTND): halved• Self efficacy in quitting doubled• Nicotine inhaled per day: halved • CO exhaled (toxicity indicator): - 66%• NNAL in urine (carcinogen indicator): halved
based on Benowitz 2007 10 week study of reduced nicotine cigarettes, smokers not intending to quit.
www.endsmoking.org.nz October 2010
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Appendix - Check list for government before taxing nicotine
Commission nicotine tax simulation studies.
Publish a discussion of proposed changes.
Consult with stakeholders and experts
Require annual testing of all brands for nicotine content as well as nicotine yield.
Regulate for nicotine content labels on all packets
Ban import and sale of liquid nicotine.
Allow manufacturers 6 months to re-tool.