André J. M. Reyntjens

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A double-blind study was performed in 83 patients with generalized anxiety disorder comparing daily doses of 5 and 10 mg ritanserin (a selective antagonist of serotonine S2 receptors) versus placebo and 4 mg lorazepam as reference drug. Patients treated with 10 mg ritanserin or 4 mg lorazepam improved significantly better (p less than 0.05) after two weeks(More)
The new antipsychotic drug setoperone is pharmacologically characterized by its potent serotonin and moderate dopamine receptor blocking properties. Forty chronic schizophrenic patients were included and 34 completed this pilot study. Following a drug free period of 1 week the patients received setoperone 5 mg t.i.d. After 1 month of treatment, the(More)
The effects of cisapride (R 51619), a new non-dopamine-blocking gastrokinetic drug, on gastrointestinal contractility have been determined on isolated preparations of the guinea pig. On the intact gastroduodenal preparation, cisapride enhanced contractile amplitude (3.4 X 10(-7) M), improved antroduodenal coordination (EC50 = 1.9 X 10(-7) M) and antagonized(More)
The new potent anti-nauseant 5-chloro-1-(1p[3-(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)-propyl]-4-piperidinyl)-1.3-dihydro-2H-benzimidazol-2-one (domperidone), which in contrast to available anti-emetics does not provoke extrapyramidal or adrenolytic adverse effects, also enhances gastric emptying motility. Controlled clinical trials have confirmed its(More)
Sixty-one adult psychotic patients were treated for four weeks in an open dose-finding study with the new combined serotonin-dopamine antagonist risperidone (R 64 766). Risperidone had a rapid onset of action; a highly significant decrease in the total score on the Brief Psychiatric Rating Scale (BPRS) was already noticed after the first week of treatment.(More)
Cisapride (R 51 619) is a newly synthesized compound, which facilitates the release of acetylcholine in the myenteric plexus of the gut. Its effect on gastric emptying of a barium meal was evaluated in 84 patients under randomized, double-blind conditions. Two oral doses (5 mg and 10 mg) of cisapride were compared with a placebo, and two intravenous doses(More)
Thirty-eight hospitalized chronic psychotic patients were injected (i.m.) every 4 weeks with haloperidol decanoate using different dosage schedules which were calculated from the previously prescribed daily oral dose of haloperidol multiplied by a factor of 30, 20 or 10. The 20-fold schedule appeared to be adequate in most of the patients. All patients were(More)
Several promotility drugs have been used to correct disorders caused by disturbed gastrointestinal motility. However these drugs have various drawbacks. Their effects on smooth muscle activity may be restricted to part of the digestive system, or may not be very efficient. On the other hand, their use is somewhat limited by side effects: drugs may not be(More)
Thirty-four patients took part in an 8-week open investigation aimed at evaluating the efficacy of low oral doses of milenperone as non-sedative neuroleptic drug in the management of aggressive behavior in alcoholics and epileptics. Significant improvements were recorded for respectively 11 and 13 out of 16 evaluable symptoms in alcoholics and epileptics.(More)