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)

Nineteen patients receiving cancer chemotherapy were randomized in a double-blind fashion to receive either (a) dronabinol, 10 mg plus placebo q.i.d.; (b) prochlorperazine, 10 mg plus placebo q.i.d.; or (c) dronabinol plus prochlorperazine, each 10 mg q.i.d. There were six evaluable patients in each of the two single-agent groups and five in the combination group. The median duration and severity per episode of nausea was significantly greater in the group receiving prochlorperazine alone versus the other two groups. The median duration per episode of vomiting was also significantly greater in the prochlorperazine group than in the other two groups. The proportion of patients vomiting was the same in all groups; however, only one patient in the combination group versus three each in the single-agent groups experienced nausea (p = NS). The majority of side effects were associated with the CNS, including somnolence, dizziness, and confusion. Side effects were somewhat more common in both groups receiving dronabinol, though they were not statistically different from the side effects in the group receiving prochlorperazine as a single agent. Efficacy, as measured by duration of nausea and vomiting and by severity of nausea, was significantly greater in both groups receiving dronabinol.
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PMID:Dronabinol and prochlorperazine alone and in combination as antiemetic agents for cancer chemotherapy. 217 91

Risk factors for ectopic pregnancy include previous ectopic pregnancy, current intrauterine device use, prior fallopian tube surgery, previous pelvic inflammatory disease and a prior history of infertility. Abdominal pain is the most common symptom, followed by amenorrhea or vaginal bleeding, nausea, vomiting, syncope and dizziness. Referred shoulder pain following the onset of abdominal pain is characteristic of intraperitoneal bleeding and, in the appropriate clinical setting, strongly suggests a ruptured ectopic pregnancy. A coordinated evaluation includes measurement of serum human chorionic gonadotropin concentration and transabdominal or, preferably, transvaginal ultrasonography. Treatment is primarily by one of a variety of surgical techniques. Medical therapy with methotrexate or other drugs is currently under investigation.
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PMID:Management of ectopic pregnancy. 218 38

Anorexia, cachexia, and resultant weight loss are major clinical problems in a substantial proportion of patients with advanced cancer. Effective means of alleviating these problematic symptoms are lacking. Extensive clinical data demonstrate a weight enhancing effect for the serotonin antagonist, cyproheptadine, in several clinical situations. In addition, sound basic research suggests that cyproheptadine may be helpful in patients with cancer anorexia/cachexia. Because of this, the authors performed a randomized, placebo-controlled, double-blinded clinical trial using cyproheptadine, 8 mg orally three times a day in 295 patients with advanced malignant disease. Patients assigned to cyproheptadine had less nausea (P = 0.02), less emesis (P = 0.11), more sedation (P = 0.07), and more dizziness (P = 0.01) than placebo patients. Patients' appetites, measured by serial patient-completed questionnaires, appeared to be mildly enhanced by cyproheptadine. Unfortunately, cyproheptadine did not significantly abate progressive weight loss in these patients with advanced malignant disease; patients assigned to cyproheptadine lost an average of 4.5 pounds per month compared to 4.9 pounds per month for patients assigned to a placebo (P = 0.72).
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PMID:A controlled trial of cyproheptadine in cancer patients with anorexia and/or cachexia. 218 85

In general, ciprofloxacin is well tolerated. The most common adverse effects are nausea, vomiting, diarrhea, dizziness, nervousness, and rash. Reversible leukopenia can be associated with the use of oral ciprofloxacin, as shown by our case. Leukopenia should be watched for as the use of this drug increases.
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PMID:Reversible leukopenia related to ciprofloxacin therapy. 217 51

The Isoparaffins covered in this manuscript are branched aliphatic hydrocarbons with a carbon skeleton length ranging from approximately C10 to C15. They are used in the manufacture of liquid imaging toners, paint formulations, charcoal lighter fluid, furniture polishes and floor clearners. Potential exposure exists in the petroleum, printing and paint industries. Isoparaffins have a very low order of acute toxicity, being practically non-toxic by oral, dermal and inhalation routes. However, aspiration of liquid isoparaffins into the lungs during oral ingestion could result in severe pulmonary injury. Dermally, isoparaffins have produced slight to moderate irritation in animals and humans under occluded patch conditions where evaporation cannot freely occur. However, they are not irritating in non-occluded tests, which are a more realistic simulation of human exposure. They have not been found to be sensitizers in guinea pig or human patch testing. However, occasional rare idiosyncratic sensitization reactions in humans have been reported. Instillation of isoparaffins into rabbit eyes produces only slight irritation. Several studies have evaluated sensory irritation in laboratory animals or odor or sensory response in humans. When evaluated by a standard procedure to assess upper airway irritation, isoparaffins did not produce sensory irritation in mice exposed to up to 400 ppm isoparaffin in air. Human volunteers were exposed for six hours to 100 ppm isoparaffin. The subjects were given a self-administered questionnaire to evaluate symptoms, which included dryness of the mucous membranes, loss of appetite, nausea, vomiting, diarrhea, fatigue, headache, dizziness, feeling of inebriation, visual disturbances, tremor, muscular weakness, impairment of coordination or paresthesia. No symptoms associated with solvent exposure were observed.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Toxicology update isoparaffinic hydrocarbons: a summary of physical properties, toxicity studies and human exposure data. 219 78

Toxic shock syndrome (TSS) is an acute febrile, exanthematous illness associated with multisystem failure including shock, renal failure, myocardial failure and adult respiratory distress syndrome (ARDS). It usually presents with fever, pharyngitis, diarrhoea, vomiting, myalgia, and a scarlet fever-like rash, and may progress rapidly (within hours) to signs of hypovolaemic hypotension such as orthostatic dizziness or fainting. The signs and symptoms of toxic shock syndrome should be recognised early to permit successful therapy. Patients are usually suffering from hypovolaemia due to leaky capillaries and fluid loss into the interstitial space, and consequently large volumes of fluid, both crystalloid (e.g. saline, electrolyte-solutions) and colloid (e.g. albumin, intravenous gamma-globulin), may be necessary to maintain adequate venous return and cardiac output. Patients with toxic shock syndrome usually have a focus of staphylococcal infection such as a surgical wound infection or soft tissue abscess, or they may have TSS associated with menstruation and use of a vaginal device such as tampons. The site of infection should be adequately drained and treated with antimicrobial therapy. Subacute complications including ARDS and myocardial failure require a thorough understanding of the underlying pathophysiology to ensure appropriate treatment. Recurrences of TSS can be avoided by appropriate antimicrobial treatment and avoidance of recurrent conditions which might favour staphylococcal toxin production (e.g. use of tampons during menstruation). More than 95% of patients survive toxic shock syndrome if appropriate therapy is instituted early.
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PMID:Therapy of toxic shock syndrome. 219 66

Nonsalicylate, nonsteroidal anti-inflammatory drugs (NSAIDs) can be divided into 4 chemical classes: acetic acids, fenamic acids, oxicams and propionic acids. Most NSAID overdoses result in a benign outcome. Of 50,614 exposures reported to poison centres in the United States in a 2-year period, 131 (0.26%) had a major outcome, with 10 deaths. Despite the generally mild effects reported in large patient series, isolated case reports have documented serious toxicity, such as seizures, hypotension, apnoea, coma and renal failure. The majority of these consequences occur after ingestion of substantial quantities by adults attempting suicide. Rarely, with ibuprofen and piroxicam, children who ingest small amounts in accidental exposure develop serious toxicity. Typical signs and symptoms of NSAID overdose include nausea, vomiting, headache, drowsiness, blurred vision and dizziness. Seizures are rarely documented across all NSAID classes, with the exception of mefenamic acid (where seizures occur in over one-third of cases), or following massive ingestion of other agents. Drugs in the propionic acid group have produced metabolic acidosis, respiratory depression and coma in severe cases. Ibuprofen is the agent with the most published data on overdose, probably because it is available without a prescription in many countries. Symptoms are unlikely after ingestion of 100 mg/kg or less, and are usually not life-threatening unless more than 400 mg/kg is ingested. There is some relationship between plasma concentrations and the potential for development of symptoms, but plasma concentrations have no impact on treatment decisions. Treatment of NSAID overdose is entirely supportive. Recent trends in emergency department procedures regarding gastric decontamination are evolving towards the recommended administration of activated charcoal without gastric emptying in patients presenting more than 1 hour after ingestion, although gastric lavage, followed by administration of activated charcoal, may be advisable in patients who present earlier. Home administration of syrup of ipecac is still recommended if treatment is given shortly after ingestion, with a few exceptions: for example, ipecac is contraindicated after ingestion of mefenamic acid or ibuprofen in amounts greater than 400 mg/kg. Urine alkalinisation and diuresis have been recommended to enhance the elimination of NSAIDs, based on a pKa in the range of 3 to 5. However, because the drugs are universally highly protein bound, with little unchanged renal excretion, this technique is not likely to be beneficial. Haemodialysis is also unlikely to enhance elimination, but may be required if oliguric renal failure develops. Multiple dose activated charcoal may be useful in enhancing elimination of NSAIDs with long half-lives, such as piroxicam and sulindac.
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PMID:Toxic effects of nonsteroidal anti-inflammatory drugs in overdose. An overview of recent evidence on clinical effects and dose-response relationships. 219 51

In an open multicentre study in Switzerland, the dihydroergotamine nasal spray was studied for its efficacy and tolerability in the treatment of acute migraine attacks (common and classical migraine--one attack each patient) in a total of 904 patients. In the global assessment, 76.8% of all the patients reported good efficacy (freedom from pain, less pain or shorter duration of pain). When the nasal spray was used already in the prodromal phase, good efficacy could be obtained by 90 (63%) of 143 patients. 18.1% of all the patients treated--more frequently those who obtained no beneficial effect and/or who took additional medication during the migraine attack--reported one or more--minor side-effects such as local nasal irritation (congestion, burning or stinging), nausea, dizziness and vomiting. 3.9% of the patients said they would not use the spray again because of the side effects.
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PMID:[Dihydroergotamine as a nasal spray in the therapy of migraine attacks. Efficacy and tolerance]. 220 27

The efficacy of indomethacin suppositories (100 mg 1-3 times a day) in the treatment of primary dysmenorrhoea was investigated in a double-blind, crossover study involving 40 patients, in comparison to placebo. The patients were treated for four menstrual periods-two periods with placebo and two periods with indomethacin suppositories. A dysmenorrhoeic score based on subjective estimations of nine symptoms was used, the symptoms including pelvic pain, backache, headache, dizziness, nausea, vomiting, diarrhoea, nervousness and incapacitation. As compared to placebo, indomethacin suppositories led to a insignificant decrease in the frequency and severity of the associated symptoms, as evaluated by subjective rating (P less than 0.05). Indomethacin suppositories were well tolerated and there was no drop-out. No side effects were reported except for a mild burning sensation in the rectal region experienced by 3 patients on indomethacin suppositories.
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PMID:Efficacy of indomethacin suppository in primary dysmenorrhoea. 222 77

A total of 619 patients with acute upper or lower respiratory tract infection were randomised to receive either erythromycin ethylsuccinate tablets at a dose of 1 g twice daily, or ciprofloxacin tablets 500 mg twice daily in a single-blind, multicentre study. The efficacy of each antibacterial was similar, with close to 90% of patients on each treatment being reported as either cured or improved. Gastrointestinal symptoms were the most commonly reported side-effects, being similar in overall incidence for both agents. Nausea, vomiting, dizziness and headache occurred more frequently in the ciprofloxacin group, while abdominal pain and diarrhoea occurred more frequently in the erythromycin ethylsuccinate group. In each group, the number of patients failing to complete treatment was similar and the main reasons cited for discontinuation were gastrointestinal symptoms. This study indicates that both erythromycin ethylsuccinate and ciprofloxacin are well tolerated and are equally effective for routine empirical treatment of acute respiratory tract infections.
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PMID:Comparison of oral erythromycin ethylsuccinate and ciprofloxacin in the treatment of acute respiratory tract infections. 226 18


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