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Contact allergies induced by TTS-treatment
D Eichelberg1, P Stolze, M Block
1Clinic for Dermatology, University of Münster, FRG.
Summary
Nicotine patches (transdermal therapeutic systems) aided smoking cessation but caused skin reactions in many users. A few developed genuine allergic contact dermatitis, potentially due to nicotine itself.
Area of Science:
- Dermatology
- Pharmacology
- Addiction Medicine
Background:
- Transdermal therapeutic systems (TTS) offer continuous drug delivery.
- Nicotine TTS are used for smoking cessation.
- Skin reactions are a known side effect of transdermal patches.
Purpose of the Study:
- To evaluate the efficacy and safety of a nicotine TTS for smoking cessation.
- To assess the incidence and nature of skin reactions associated with nicotine TTS use.
- To investigate potential allergic contact dermatitis caused by nicotine TTS.
Main Methods:
- A clinical study involving 183 heavy smokers undergoing nicotine TTS treatment and behavioral therapy.
- Monitoring of patient-reported symptoms, including pruritus and erythema.
- Dermatological assessment to differentiate irritant reactions from allergic contact dermatitis (Type IV).
Main Results:
- 53% of patients reported pruritus and 39% developed erythemas, primarily at the application site.
- Most skin reactions were mild to moderate.
- Six patients developed genuine contact allergies; five were attributed to nicotine in the TTS.
Conclusions:
- Nicotine TTS can be effective in smoking cessation.
- Skin irritation is common with nicotine TTS, but usually mild.
- Nicotine TTS may induce genuine allergic contact dermatitis, highlighting the potential for TTS to cause allergies to pharmaceutical agents.