Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0012833 (dizziness)
 9,689 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Sensitizing and neurotoxic effect of ornidazole, was tested in a double-blind randomized study in patients with carcinoma of the cervix and larynx. Ornidazole or placebo were given orally, two times weekly, for 3 weeks. Dose was 2.5 g/m2 for each administration. Total dose given was 15 g/m2. Radiation therapy was given 3 h after the drug administration. Ornidazole was well tolerated in the majority of the patients. No neurotoxic side effects, such as peripheral neuropathy or convulsion, were observed with a total dose of up to 30 g. Dizziness, somnolence and nausea were the prominent acute side effects, seen mostly (70%) in women. In the placebo group this rate was 17% (p less than 0.01). No important side effect was observed in men receiving ornidazole. Serum concentration of ornidazole reached the maximum level in 2-4 h after oral administration and ranged (23 patients) from 65.1 to 139.8 micrograms/ml. Mean half-life was 15.6 +/- 2.8 h. Peak concentration in tumour tissue was achieved 1-3 h after the administration, ranging from 13.0 to 78.0 micrograms/g. Tumour concentration of ornidazole ranged from 14 to 93% of the serum concentration at the time of irradiation.
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PMID:Use of ornidazole in fractionated radiotherapy: dose tolerance, serum and tumour tissue concentration. 352 36

Ornidazole or tinidazole as a single dose of 1.5 g was given to 100 patients with symptomatic giardiasis. Parasites disappeared from the feces of all patients, usually within 2 or 3 days, and symptoms subsided in 98 cases, usually within 5 days. During an 8-wk follow-up, parasites reappeared in 10 patients, 5 after each drug, between 1 and 7 wk after treatment. The relapses were usually symptomatic, and the probability that they were reinfections was negligible. Ornidazole appeared in serum more rapidly than tinidazole, and the mean elimination half-lives were 10.9 and 11.1 h, respectively. Subjective side effects were equally common after both nitroimidazoles; dizziness was associated with rapid initial absorption. We found no correlation between drug absorption or elimination and therapeutic efficacy. Both drugs are recommendable as a single oral dose of 1.5 g in giardiasis.
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PMID:Treatment of giardiasis: comparative evaluation of ornidazole and tinidazole as a single oral dose. 708 17