Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a clinical trial the effect of L-deprenil, a selective irreversible inhibitor of monoamine oxidase (M.A.O.) "type B" in potentiating the anti-kinetic properties of levodopa has been investigated in 223 patients. Both drugs were given orally, levodopa as 'Madopar' (levodopa plus the peripherally acting decarboxylase inhibitor, benserazide) 250 mg three times daily and L-deprenil 5 mg once or twice daily. The addition of L-deprenil to madopar therapy resulted in a statistically significant (P less than 0-01-0-001) reduction in patients' functional disability on average within 60 min after a single oral dose and lasting for 1 to 3 days. Dyskinesia occurred in 16 patients, psychosis in 14, orthostatic hypotension in 5, and nausea in 8. Reduction of the L-deprenil dose to 5 mg in these patients eliminated some of the side-effects. Two-thirds of the patients with side-effects had suffered from parkinsonism for between 7 and 15 years. 14% of the patients failed to respond to madopar-deprenil therapy. It is suggested that L-deprenil may act through inhibition of brain M.A.O. as well as by a psychostimulant effect similar to that of amphetamine which occurs through the release of dopamine. Both mechanisms would make more dopamine available at dopamine receptor sites.
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PMID:Implications of combined treatment with 'Madopar' and L-deprenil in Parkinson's disease. A long-term study. 6 60

92 patients with parkinsonism have been treated with bromocriptine for up to 30 months. 48 continue to receive bromocriptine with benefit; of these, 35 take bromocriptine (mean dose 53 mg daily) in combination with levodopa and 13 take bromocriptine (mean dose 45 mg daily) without levodopa. In those who were originally on levodopa, addition of bromocriptine allowed a mean 41% reduction in the dose of levodopa; the largest group of patients to benefit from bromocriptine entered the study because of excessive dyskinesia or "on-off" phenomena induced by levodopa. In 40 patients bromocriptine was stopped because of adverse reactions, absence of therapeutic response, or non-compliance with the protocol. The main problems were psychiatric disturbance (8 patients) and erythromelalgia (7 patients); these effects tended to occur late (mean 6 months and 10 months, respectively) and with high dosage (mean 66 mg and 115 mg daily). Other frequent adverse effects were dizziness and nausea; these began considerably earlier (at 2 months and 1 month) and with much lower dosage (31 mg and 12 mg daily). 4 patients died, for reasons apparently unrelated to therapy.
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PMID:Long-term treatment of parkinsonism with bromocriptine. 7 47

Forty patients suffering from vertigo of different genesis received thiethylperazine 6.5 mg or meclizine 25 mg, 2 capsules a day for 5 days, according to double-blind, cross-over methodology in randomized order. It appeared that the effect on the symptoms vertigo, gait disturbance and nausea does not differ significantly for the two preparations. On the other hand, an almost significant effect on vertigo, and, to a smaller degree, on gait disturbances, was obtained during the second period of treatment, independent of administered preparation. Side-effects in the form of fatigue and headache occur to the same extent after both preparations. Meclizine should be an alternative to thiethylperazine in the treatment of vertigo, especially in patients who might risk chronic dyskinesia in long-term treatment.
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PMID:Comparative investigation between thiethylperazine and meclizine in vertigo of different genesis. 36 Jul 66

Twenty-two patients entered a double-blind trial to test the efficacy of bromocriptine therapy in patients with Parkinson's disease who were already stabilized on conventional L-Dopa therapy. Of these, three patients who were receiving placebo withdrew when no improvement occurred and control became complicated. Another four patients taking active drug withdrew because of side effects, but only in one case was the symptom (nausea and vomiting) thought to be a true effect of the drug. Of the 15 patients who completed the trial, nine were taking active drug and six took placebo. Although more than half the patients in each group were subjectively improved, measurement scales of functional disability and physical examination revealed no significant change in either group. Side effects encountered included nausea, dyskinesia, and hallucinations. It was concluded that bromocriptine does not offer any additional benefit to patients with Parkinson's disease who are stabilized on L-Dopa therapy, but may have a place in those patients who encounter side effects due to fluctuations in serum and tissue levels of L-Dopa.
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PMID:A double-blind trial of bromocriptine in Parkinson's disease. 37 May 27

Levodopa has become established as the treatment of choice in Parkinson's disease. It is adsorbed by an active mechanism from the small bowel. Its pharmacological activity depends upon the formation of dopamine and possibly other metabolites. Its beneficial effect in Parkinson's disease probably depends upon temporarily restoring the ability of degenerating nigro-striatal cells to release dopamine. Its main side effect, that of dyskinesia, may reflect a direct action of dopamine on striatal receptors. Peripheral decarboxylase inhibitors reduce the incidence of levodopa-induced nausea, probably by lowering the concentration of dopamine in the area postrema. The introduction of levodopa in the treatment of Parkinson's disease is generally regarded as one of the uncommon examples in medicine where effective therapy has resulted from systematic research rather than seredipity. As our knowledge of the pharmacology of levodopa grows, we may be forced to admit that perhaps the right drug was chosen for the wrong reasons.
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PMID:A review of some aspects of the pharmacology of levodopa. 38 8

Abnormalities of oesophago-gastro-intestinal motoricity play an important etiologic role in various affections of stomach, intestine, oesophagus and associated complaints. The new monosubstance bromopride produces a selective action restoring the basal motility of stomach, pylorus, duodenum and of the lower oesophageal sphincter to normal. The effect and tolerance of Viaben (bromopride) were examined in an open field study on 4182 subjects. The drug was given in average doses of one capsule three times a day. The results were assessed as very good in 37.9% of cases, and as good in 47.9%. No change was seen in 12.2%, while only 2.0% were aggravated. 64.7% of all patients benefited within the first fortnight. Nausea, vomiting and intolerance to drugs even disappeared in the first days of treatment. Individuals exhibiting a nervous, irritative stomach also had a rapid response to the drug. Pain, which is a fairly common complaint, passed off quickly. Side effects were seen in 6.8% of cases. However, the question whether they were due to the treatment, is not easily answered in an open study. The most common side effect was tiredness (3.7%), which was reported to be mild in some cases. The dyskinesia observed in subjects treated with other ortho-substituted benzamides was only seen in 0.4% of all patients.
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PMID:[Management of gastrointestinal diseases using a motility-regulating preparation. Results of a field study using bromopride (Viaben) conducted by 530 general practitioners on 4182 patients]. 42 53

The broad results of the treatment of patients with idiopathic Parkinson's disease who have received levodopa or its variants are reported. 50 patients, 24 males and 26 females, with a mean age of 66.5 years were treated with levodopa, in daily doses ranging from 0.25g to 6.0g or 'Sinemet' in daily doses of 300mg to 750mg. Periods of treatment ranged from 4 months to 8 years, with a mean of 4.02 years. The relationships of patients' age, onset of Parkinsonian symptoms and interval between initial treatment with levodopa and the current clinical state were studied. Patients were classified according to their clnical response into 3 categories: satisfactory response, progressive deterioration or intolerance of levodopa. The proportion of patients in each category was 66%, 22% and 12% respectively. The clinical results of treatment correlated with those of Webster Disability Testing Scale. Analysis showed that the majority of patients tolerated levodopa and showed an initially satisfactory response. Patients who responded well were considerably younger than those who failed to respond. Patients receiving the drug for a shorter period (less than 3 years) showed a better response. After 3 years' treatment, the response declined. Patients who had had Parkinson's disease for more than 4 years appeared to do less well than those with recently diagnosed disease, but many patients responded well even when treatment was initiated 10 years after the onset of symptoms. Patients discontinued levodopa treatment because of psychoses, nausea, dyskinesia or exacerbation of urinary incontinence. The commonest side effects were nausea (34%), postural hypotension (22%), psychoses (10%) and 'on-off' phenomena in 12% of patients.
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PMID:Patterns of response to levodopa in Parkinson's disease. 75 20

Irregularities in motor response after continuing levodopa therapy of Parkinson disease (the "on-off effect") were assessed with the addition of L-alpha-methyldopa hydrazine (carbidopa) in a double-blind study. Thirteen of 20 patients improved while receiving carbidopa and levodopa while only four of 17 patients improved while receiving placebo and levodopa. Twenty-three of 37 patients improved in a subsequent non-blind trial of carbidopa plus levodopa. Improvement was not dependent on an increase in dose or frequency of levodopa administration. Adverse effects included dyskinesia, imbalance, and confusion; nausea was eliminated. On patient died of glomerulonephritis that predated the drug trial, but worsened progressively during and after it. Carbidopa's suppression of the "on-off effect" suggests that extracerbral factors may be important in this phenomenon.
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PMID:Treatment of "on-off effect" with a dopa decarboxylase inhibitor. 115 14

The effectiveness of a once-weekly i.m. injection of ceruletide (0.8 microgram/kg) in suppressing the symptoms of neuroleptic-induced tardive dyskinesia (TD) was evaluated in a double-blind, placebo-controlled, matched-pairs study. Global evaluation of the severity of TD symptoms over the 8-week study period revealed a significant improvement with ceruletide as compared with placebo. Analysis of the therapeutic response to ceruletide over the course of treatment revealed a slow, but long-lasting improvement of TD symptoms. Side effects, which were mild and transient, consisted mainly of nausea and epigastric discomfort. The incidence of side effects did not differ between the ceruletide- and placebo-treated groups. Ceruletide appears to be a novel and practical treatment that can substantially alleviate the symptoms of dyskinesia.
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PMID:Treatment of tardive dyskinesia with ceruletide: a double-blind, placebo-controlled study. 135 1

Drug-induced purposeless chewing movements in rodents are often considered to represent movement disorders or dyskinesias. We have compared the ability of drugs to induce chewing and retching or emesis in squirrel monkeys; such studies are not possible in rodents, which do not vomit. Acute administration of oxotremorine (3.3-33 micrograms/kg IM), SKF38393 (1-30 mg/kg SC) or ipecacuanha (0.5-0.75 mg/kg PO) caused dose-related increases in purposeless chewing which was frequently associated with retching and emesis. Treatment with haloperidol (0.015-0.06 mg/kg IM) did not induce chewing. Rather, haloperidol decreased spontaneous chewing at doses of 0.03 and 0.06 mg/kg. Our findings indicate that at least some drug-induced oral behaviours in rodents may reflect nausea rather than dyskinesia.
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PMID:Drug-induced purposeless chewing: animal model of dyskinesia or nausea? 197 78


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