Vomiting drugs producing

Trimethoprim produces the predictable adverse effects of an antifolate drug, especially megaloblastic anemia, leukopenia, and granulocytopenia. The combination trimethoprim-sulfamethoxazole may cause all of the untoward reactions associated with sulfonamides. Nausea and vomiting, drug fever, vasculitis, renal damage, and central nervous system disturbances occasionally occur also. Patients with AIDS and pneumocystis pneumonia have a particularly high frequency of untoward reactions to trimethoprim-sulfamethoxazole, especially fever, rashes, leukopenia, diarrhea, elevations of hepatic aminotransferases, hyperkalemia, and hyponatremia. 

Levamisole is a well tolerated drug producing virtually no side effects at therapeutic doses. However, a few cases (about 1% of the treated patients) may show intestinal symptoms (nausea, vomiting, anorexia, abdominal discomfort), headache and dizziness, which are mild and of transient duration [35,56]. 

Poisoning with iron-containing drugs produces vomiting, gross gastrointestinal bleeding, shock, metabolic acidosis, and coma and can be treated with supportive care and deferoxamine. 

These include atropine, scopolamine (hyoscine), trihexyphenidyl (benzhexol) and benzatropine. They block central muscarinic receptors involved in various afferent pathways of the vomiting reflex (Fig. 1). They have been used to control motion sickness, emesis in Meniere s disease and postoperative vomiting. Currently, hyoscine is largely restricted to the treatment of motion sickness where it has a fast onset of action but a short duration (4-6 h). Administration of hyoscine by transdermal patch produces a prolonged, low-level release of the drug with minimal side effects. To control postoperative vomiting, it should be applied >8 h before emesis is anticipated. 

Similar to alcohol (Lovinger and White 1991) and volatile anesthetics (Machu and Harris 1994), trichoroethane, trichloroethylene, and toluene enhance 5-HT3 receptor function. All three inhalants significantly and reversibly potentiated, in a dose-dependent manner, 5-HT-activated currents, mediated by mouse 5-HT3 receptors expressed in Xenopus oocytes. Another feature common to these drugs is that the acute use of inhalants, as well as alcohol and volatile anesthetics, can produce nausea and vomiting (Meredith et al. 1989). It is believed that 5-HT3 receptors located in the area postrema mediate this action of alcohol and the volatile anesthetics (Aapro 1991). 

The reason for this warning is that abrupt cessation of SSRIs produces withdrawal symptoms in about 20 per cent of patients. Symptoms of withdrawal from antidepressant medication include gastrointestinal disturbances (abdominal cramping and pain, diarrhoea, nausea and vomiting), flu-like symptoms, headaches, sleep disturbances, dizziness, blurred vision, numbness, electric-shock sensations, twitches and tremors. Abrupt withdrawal can also produce symptoms of depression and anxiety, which can occur within hours of the first missed dose of the drug.11 Withdrawal symptoms are sometimes mistaken for a relapse, leading patients to resume antidepressant medication and to conclude that they need it in order to remain free of depression. Technically, this is not considered addiction , but it does seem awfully close. 

Cartwright [124] reported that miconazole was slightly absorbed from epithelial and mucosal surface. The drug is well absorbed from the gastrointestinal tract, but caused nausea and vomiting in some patients. The drug may be given intravenously but was associated phlebitis. Up to 90% of the active compound was bound to plasma protein. Distribution into other body compartments was poor. Metabolism was primarily in the liver, and only metabolites were excreted in the urine. At therapeutic levels, they were relatively nontoxic both locally and systematically, but occasionally produced disturbances on the central nervous system. 

Of the following drugs, which would not produce a syndrome of flushing, headache, nausea, vomiting, sweating, hypotension, and confusion after ethanol consumption ... 

Other effects caused by methamphetamine include headaches, decreased appetite, dry mouth, dilated pupils, trembling, chest pains, increased respiration and shortness of breath, hyperthermia (elevated body temperature), insomnia, and nausea and vomiting. In more severe cases (i.e., overdoses) it can produce seizures and convulsions, stroke, heart attacks, and death. The risk of encountering these more serious side effects are greatly increased when methamphetamine is used in combination with other drugs like cocaine, marijuana, alcohol, and heroin. 

Drug abuse and dependence Sedative/hypnotics have produced withdrawal signs and symptoms following abrupt discontinuation. These reported symptoms range from mild dysphoria and insomnia to a withdrawal syndrome that may include abdominal and muscle cramps, vomiting, sweating, tremors, and convulsions. Zolpidem does not reveal any clear evidence for withdrawal syndrome. 

Irinotecan treatment schedules differ from 125 to 150 mg/m2 once a week for 4 wk followed by a 2-wk drug free interval (United States), to 350 mg/m2 once every 3 wk (Europe), or 100 mg/m2/wk or 150 mg/m2 every 2 wk (Japan). Differing intermittent treatment schedules using cytokine support for neutropenia, or intensive loperamide to counteract diarrhea, have also been reported (14). These tolerable CPT-11 regimens have produced median durations of response that range from 5.6 to 10.6 mo in colorectal patients disease stabilization occurs in 30 to 71 % (40). Response rates of 26% and 32% have been reported for previously untreated colorectal cancer patients higher response rates have been reported for non-5-FU-refractory patients (only 7-21%). Symptoms of diarrhea, nausea, and vomiting are common toxicities other side effects are asthenia, abdominal pain, leukopenia, and neutropenia. In the US trials at least one of these adverse... 

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