The questionnaire yielded a coherent factor structure; women smoked more for tension reduction/relaxation, stimulation and for social reasons than men; addictive smoking and automatic smoking behaviour were similar in both sexes and were associated strongly with a high level of nicotine dependence; the 'habit/automatism' score predicted failure to quit over and above cigarettes per day.
Monoamine oxidase inhibitors can elicit increases in systolic blood pressure after tyramine ingestion (cheese effect). Moclobemide is a new, reversible, preferential monoamine oxidase A inhibitor with antidepressant properties. Its potentiation of the tyramine pressor effect during 200 mg t.i.d. chronic treatment was compared with tranylcypromine, 10 mg b.i.d., in a double-blind, parallel-group, placebo-controlled study (n = 16). Tyramine was mixed with food and ingested in increasing daily doses, during a normal meal, until a systolic blood pressure increase of at least 30 mm Hg was achieved (tyramine 30). When compared with the usual fasting oral tyramine tests performed in the same subjects, the mean tyramine 30 dose with a meal was 2.8 times higher. The mean tyramine 30 dose with a meal decreased from 1450 mg (range, 800 to 2000 mg) during placebo to 306 mg (range, 150 to 500 mg) during moclobemide (factor, 5.0) and from 1200 mg (range, 1000 to 1600 mg) during placebo to 35 mg (range, 20 to 50 mg) during tranylcypromine (factor, 38.2). The duration of the systolic blood pressure increase was longer with tranylcypromine (126 minutes) than with moclobemide (69 minutes) (p less than 0.01).
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