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PubMed1978

A double-blind controlled study of clinical efficacy of maprotiline and amitriptyline in depression.

A multiclinic double-blind controlled study was performed on the effects of MAP in both inpatients and outpatients with AMT as control drug. 1. Subjects consisted of 41 male and 45 female patients suffering from various types of depression. MAP was assigned to 42 cases and AMT to 44 cases. Of these patients, 14 MAP cases and 10 AMT cases were subsequently dropped for a variety of reasons to obtain 28 MAP cases and 34 AMT cases as evaluable. 2. The global improvement ratings were compared and found not significantly different for any week between the two treatments. 3. The global improvement ratings by the characteristic features of patients did not show any significant difference in any items studied between the two treatments. 4. The symptomatic improvement ratings (on the Hamilton R.S. for assessment by the physician) indicated that AMT was more effective on "anxiety (psychic)." 5. The symptomatic improvement ratings (on the Beck self-assessment scale by the patient) indicated that MAP was more effective on "work" and AMT on "pathos", "feeling of satisfaction", "withdrawal" and "loss of libido." 6. During the treament period, 74.3 percent of the MAP group and 76.9 percent of the AMT group of patients showed some side effects of accompanying symptoms, with no significant difference recognized between the two treatments. Itemwise, however, the incidence of tremor was significantly lower (p-=0.06) in the MAP group. Moreover, the MAP group tended to be less liable to such anticholinergic side effects as dry mouth, constipation, trouble of accomodation, urinary disturbance and palpitation. 7. On the basis of the above findings, it is concluded that MAP is as effective against depression as AMT and less liable to the anticholinergic side effects. It is, therefore, a very useful antidepressant.

Adolescent↗
PubMed1998

Effect of amitriptyline on symptoms, sleep, and visceral perception in patients with functional dyspepsia.

OBJECTIVE: Tricyclic antidepressants in low doses are widely used in the therapy of patients with functional gastrointestinal disorders, yet the mechanism(s) of action of these drugs in these disorders is not known. In the current study, we sought to determine in a group of patients with functional dyspepsia and associated poor sleep how amitryptiline affects digestive symptoms, perceptual responses to gastric distension, and subjective and objective measures of sleep. METHODS: Patients were randomized to 4 wk of amitryptiline 50 mg taken at bedtime versus placebo. There was a 3-wk washout phase, followed by a cross-over to the alternate treatment. Perceptual sensitivity to gastric distention and sleep EEG were recorded at the end of each treatment period. Diaries of symptoms were maintained throughout. RESULTS: Seven of seven patients reported significantly less severe gastrointestinal symptoms after 4 wk on amitryptiline compared to placebo. Five of seven patients had evidence for altered perception of gastric balloon distension during placebo. However, the subjective symptom improvement on amitryptiline was not associated with a normalization of the perceptual responses to gastric distension. Baseline sleep dysfunction in the form of reduced sleep efficiency, increased arousal, or abnormal amounts of REM sleep was found in all seven patients. Amitryptiline significantly reduced absolute and relative amounts of REM sleep, but had no effect on sleep parameters related to nonregenerative sleep. CONCLUSION: The beneficial effect of low dose amitryptiline seen in functional dyspepsia is not related to changes in perception of gastric distension, or to measures of arousal from sleep. An increased tolerance to aversive visceral sensations may play a role in the therapeutic effect.

Adult↗