Nausea caffeine

Headaches Arising from Contact with NG or Dynamites. Test exposure (oral and skin contact) to a 20% NG Dynamite produced severe headaches, nausea and vomiting. These effects are ascribed to intracranial vasodilation produced by the NG vapors or liquid. Headaches were alleviated by intramuscular injection of caffeine-Na-benzoate followed by oral administration of... 

Acute dystonias are typically seen in the first few days to weeks of treatment and can occur with even limited exposure (e.g., children treated with a single dose of prochlorperazine for nausea). Although dystonias may disappear spontaneously, they should be treated aggressively, as they are often painful and upsetting to the patient. Rarely, laryngeal dystonias may seriously compromise respiration. Occasionally, an acute dystonic reaction is resistant to standard treatment but may respond to parenteral diazepam, caffeine sodium benzoate, or barbiturate-induced sleep. 

Anyone who must take diuretics for therapeutic purposes should take the proper precautions when exercising. This includes adequate and regular intake of water, sports drinks, or other non-caffeinated fluids loose and comfortable clothing adequate rest periods and awareness of the signs of heat exhaustion (clammy and cool skin, fatigue, nausea, weakness, confusion, vision disturbances, and a possible loss of consciousness). 

Caffeine qualifies as an addicting drug because it presents qualities of reinforcement and its withdrawal induces a syndrome of symptoms. These include headache, drowsiness, fatigue, decreased performance, depression, and occasionally nausea and vomiting. Symptoms appear within 12-24 hours of last caffeine use, peak at 20-48 hours, and last about 1 week. Although withdrawal symptoms are more common in moderate to heavy users of caffeine (in excess of three cups of coffee a day), it can also occur with low to moderate intake (235 mg/day, equivalent to 2.5 cups of coffee). 

Cardamom is also used internally for indigestion, nausea, vomiting and pulmonary disease with copious phlegm and also as a laxative to prevent stomach pain and griping, as well as flatulence. The seeds are also chewed to sweeten the breath and taken to detoxify caffeine in people drinking excessive amounts of coffee. 

Tea and coffee have been popular beverages for centuries, primmly because they contain the stimulant caffeine. It stimulates respiration, the heart, and the central nervous system, and is a diuretic (promotes urination). It can cause nervousness and insomnia and, like many drugs, can be addictive, making it difficult to reduce the daily dose. A regulcu coffee drinker who consumes as few as four cups per day can experience headache, insomnia, and even nausea upon withdrawal from the drug. 

Large doses of caffeine can cause nausea and vomiting. Caffeine is a potent stimulant of hydrochloric acid secretion (20) and has been incriminated in exacerbating duodenal ulcers. However, decaffeinated coffee has also been reported to be as potent as instant coffee in stimulating gastric acid secretion (20). 

Adverse effects with dipyridamole thallium testing are minimal, the main adverse effects being chest pain (with or without ischemic changes on the ECG), headache, dizziness, and nausea. Adverse effects are related to the increased adenosine activity and can be ameliorated by xanthine compounds because they are direct competitive antagonists of adenosine. Caffeine products must be avoided for about 24 hours prior to the test. Adenosine is associated with a higher incidence of adverse effects (80% versus 50%), but these are very transient, and some studies have shown that patients prefer it over dipyridamole. Both agents are relatively contraindicated in patients with a history of bronchospasm. 

Caffeine Restlessness, agitation, insomnia, diueresis, GI disturbances, excitement Headache, fatigue, drowsiness, nausea or vomiting Antagonist of adenosine receptors, increase cAMP in neurons that have adenosine receptors Avoid caffeine, analgesics Average adult consumes about 200 mg per day. A cup of coffee contains 100-150 mg of caffeine, tea has 1/3 as much... 

W 0 (X X w Caffeine Adenosine receptor antagonist. High dose T Ca++ permeability in sarcoplasmic reticulum and T cAMP by inhibiting phosphodiesterase. Stimulates CNS, constricts cerebral arterioles, induces diuresis, stimulates heart, bronchodilates. Prolonged apnea in pre-term infants (unlabeled use). Included in some over-the counter analgesic preps, particularly headache remedies. Insomnia, restlessness, anxiety neurosis, nausea, tachycardia, diuresis. 

Caffeine is a stimulant of the central nervous system. It eliminates fatigue and drowsiness. However, high doses cause gastrointestinal motility, restlessness, sleeplessness, nervousness, and tremor. Acute poisoning effects include nausea, vomiting, headache, excitability, tremor, and sometimes, convulsive coma. Other symptoms may be respiratory depression, muscle contraction, distorted perception, and hallucination. Ingestion of 15-20 g may be fatal to humans. 

Similar to the clinical efficacy of theophylline, side effects are also closely related to sernm concentrations. No critical side effects have been observed at sernm theophylline levels np to 20 pg/ml. However, transient comparatively slight side effects similar to those of caffeine, including nausea, vomiting, headache, diarrhea, and insomnia, occnr in some patients at theophylline sernm concentrations below 20 pg/ml. These side effects may be present in np to 50% of patients when serum concentrations of 10 to 20 pg/ml are rapidly achieved, bnt they are usually much less frequent when the initial dose is low and the hnal drng concentration is gradually achieved by increasing doses in intervals of at least 3 days. 

A. The earliest symptoms of acute caffeine poisoning are usually anorexia, tremor, and restlessness. These are followed by nausea, vomiting, tachycardia, and confusion. With serious intoxication, delirium, seizures, supraventricular and ventricular tachyarrhythmias, hypokalemia, and hyperglycemia may occur. Hypotension is caused by excessive beta-2-mediated vasodilation and is characterized by a low diastolic pressure and a wide pulse pressure. 

IV. Diagnosis is suggested by the history of caffeine exposure or the constellation of nausea, vomiting, tremor, tachycardia, seizures, and hypokalemia (also consider theophylline see p 354). 

Evidence appears to be limited to a single case report and the studies in healthy subjects. The interaction only appears to be of moderate importance. Nevertheless, it would seem prudent to check for any signs of theophylline adverse effects (headache, nausea, tremor) during concurrent use, particularly in situations where the metabolism of the theophylline may already be reduced (other drugs or diseases), or where high doses of allopurinol are used. For mention that allopurinol may invalidate the results of phenotyping tests using caffeine, see Caffeine + Allopurinol ,... 

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