emetic

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Related to Emetics: Antiemetics, ipecac

emetic

(əmĕt`ĭk), substance that produces vomiting. Direct, or gastric, emetics, which act directly on the stomach, include syrup of ipecacipecac
, drug obtained from the dried roots of a creeping shrub, Cephaelis (or Psychotria) ipecacuanha, native to Brazil but cultivated in other tropical climates.
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, sulfate of zinc or copper, alumalum
, any one of a series of isomorphous double salts that are hydrated sulfates of a univalent cation (e.g., potassium, sodium, ammonium, cesium, or thallium) and a trivalent cation (e.g., aluminum, chromium, iron, manganese, cobalt, or titanium).
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, ammonium carbonate, mustard in water, or copious quantities of warm saltwater. Indirect, or systemic, emetics, such as apomorphine, induce vomiting by acting indirectly through the blood on the brain center that controls vomiting. Emetics are not used to treat poisoning by strong acids or alkalis, petroleum distillates such as kerosene, or substances causing convulsions.

Emetic

 

an agent that induces vomiting. Emetics are distinguished according to whether they act on the vomiting center in the brain (for example, apomorphine) or whether they irritate the mucous membrane of the stomach and reflexly excite the stomach’s vomiting center (ipecac or thermopsis). Emetics are used to counteract the effects of poisoning and to treat chronic alcoholism. For example, an injection of apomorphine combined with ingestion of alcohol leads to a conditioned reflex causing the taste and odor of alcohol to induce vomiting. When taken in small doses, emetics act as expectorants.

emetic

[i′med·ik]
(pharmacology)
Any agent that induces emesis.

emetic

1. causing vomiting
2. an emetic agent or drug
References in periodicals archive ?
18) Treatment class Treatment plan Bleeding and Stimulant Venesection (8 oz), salt and mustard emetics, hot water enemata, mustard cataplasms (externally), brandy, ammonia and cayenne pepper (internally).
The number of patients who suffered from emetic episodes was 9 in the placebo group as compared to 7 in the ondansetron group and 3 in the granisetron group.
Emetic stimuli entering the general circulation can trigger the nerve receptors in the CTZ directly because, unlike the rest of the central nervous system, this region of the brainstem has a reduced blood-brain barrier.
a 2-drug combination of 5HT3 antagonist and dexamethasone for chemotherapy with moderate emetic risk.
In the prodromal phase, the physician and patient have the chance to abort the emetic phase.
Combining antiemetics that act on different receptor sites may result in improved efficacy, so instead of increasing the dose of 25 mg of Phenergan (promethazine) or 8 mg of ondansetron, for example, another antiemetic agent that works on different emetic receptors can be added to improve efficacy, Dr.
Among the patients with nausea and vomiting, the severity of emesis in terms of number of emetic episodes and frequency of nausea were also compared between two groups in acute and delayed phases of 1st and 2nd cycles (Figures 5, 6 and Tables 1, 2).
Metoclopramide 10mg IV was permitted as a rescue anti-emetic if patient had more than 2 emetic episodes.
1) Intraoperative emetic episodes are not only uncomfortable to the patient but also disturbing to the surgeons rendering surgery more difficult and increasing the risk of visceral injuries.
Rescue antiemetic treatment was given with metoclopramide 10 mg i/v only when patient experienced nausea for 3 minutes or more than one emetic episode in 15 minutes.