Insomnia coffee

When use of the CNS stimulants causes insomnia, the nurse administers the drug early in the day (when possible) to diminish sleep disturbances. The patient is encouraged not to nap during the day. Other stimulants, such as coffee, tea, or cola drinks, are avoided. In some patients, nervousness, restlessness, and palpitations may occur. The vital signs are checked every 6 to 8 hours or more often if tachycardia, hypertension, or palpitations occur. Many times these adverse reactions will diminish with continued use as tolerance develops. If tolerance develops, the dosage is not increased. 

False. Tea, coffee and cola all contain caffeine, a mild stimulant drug. In small quantities it provides a refreshing increase in energy levels in larger quantities it can lead to headaches, anxiety, agitation, tremors and insomnia. In extreme cases it has been known to cause death. 

In low and moderate doses, the methylxanthines—especially caffeine—cause mild cortical arousal with increased alertness and deferral of fatigue. The caffeine contained in beverages—eg, 100 mg in a cup of coffee—is sufficient to cause nervousness and insomnia in sensitive individuals and slight bronchodilation in patients with asthma. The larger doses necessary for more effective bronchodilation commonly cause nervousness and tremor in some patients. Very high doses, from accidental or suicidal overdose, cause medullary stimulation and convulsions and may lead to death. 

CNS, smooth muscle T diuresis X- pit aggregation Available forms Daily t doses w/ max 3 g PO daily Contra Avoid in PRG lactation, CAD, hyperthyroidism, anxiety disorders d/t high, caffeine content Notes/SE Insomnia, tach, anxiety, N/V, HA, HTN, Sz Interactions T Effects OF anticoagulants, anti-pits, BBs, bron-choclilators T risk of hypertensive crisis W/ MAOIs T effects W/ cimetidine, ciprofloxacin, ephedrine, hormonal contraceptives, dieophylline, cola, coffee X-effects OF adenosine, antihypertensives, benzodiazepines, Fe, X- effects W/ smoking EMS Tinctures contain EtOH may exacerbate GI disorders HTN T effects of anticoagulants and BBs... 

Frankly toxic effects, such as persistent insomnia and anxiety, only become evident when people drink more than eight or nine cups of coffee or tea a day. Convulsions and delirium can follow enormous doses, and a near-fatal dose can induce a state similar to that of a diabetic lacking insulin. Blood sugar surges, and ketones appear in the urine. The lowest recorded fatal dose of caffeine was 3200 mg, which was given by accident directly into the bloodstream. It takes the equivalent of 40 cups of coffee consumed by mouth in a short interval for caffeine to kill a person. 

Khat may interact with drugs used in treatment of other diseases and produce emotional and mental disorders. For example, when combined with niridazole—a drug used in treating schistosomiasis (a parasitic disease endemic throughout Asia, Africa, and tropical America)—severe anxiety reactions, insomnia, and even psychoses may develop. Also, khat would be likely to react with other stimulants such as alcohol, coffee, or cigarettes, causing palpitations and agitation. 

A number of issues, however, prove to be problematic with the use of caffeine. First, tolerance appears to rapidly develop with repeated doses (50). Second, there is substantial interindividual variability in the rate of metabolism and in the frequency of undesired effects such as tremor, jitteriness, and insomnia. Interestingly, despite the widespread use of caffeine, and the strong reluctance of many users to forgo consumption and their inclination to typically escalate dose (i.e., number of servings of coffee or cola), routine caffeine consumption is usually not viewed as drug use, much less drug abuse. 

For most young people, indulgence in caffeine as a mind drug is pleasant, but overindulgence can exacerbate insomnia, cardiovascular and gastrointestinal problems, and anxiety. Caffeine is so irritating to the stomach that many people who drink coffee have indigestion most of the time. —... 

Caffeine is the most widely used of all the stimulants. Small doses of this chemical (50 to 200 mg) can increase alertness and reduce drowsiness and fatigue. The No-Doz tablet lists caffeine as the main ingredient. In addition, it affects blood circulation since the heart is stimulated and blood vessels are relaxed (vasodilation). It also acts as a diuretic. There are side effects. Large doses of over 200 mg can result in insomnia, restlessness, headaches, and muscle tremors ( coffee nerves ). Continued, heavy use may bring on physical dependence. (How many of you know somebody who cannot function in the morning until they have that first cup of coffee )... 

Adverse effects Moderate doses of caffeine cause insomnia, anxiety, and agitation. A high dosage is required to show toxicity, which is manifested by emesis and convulsions. The lethal dose is about 10 g for caffeine (about 100 cups of coffee), which induces cardiac arrhythmias death from caffeine is thus highly unlikely. Lethargy, irritability, and headache occur in users who have routinely consumed more than 600 mg of caffeine per day (roughly 6 cups of coffee/day) and then suddenly stop. 

The truth is that coffee is a strong stimulant, one that is hard on certain parts of the body. It is irritating to the stomach, for example, and many people who drink a lot of it have indigestion most of the time. (In the United States, where coffee is regularly consumed in large quantities, there are nearly as many brands of antacids as there are brands of coffee.) It is irritating to the bladder, too, especially in women, and is a frequent cause of urinary complaints. Coffee also makes many people shaky by upsetting the delicate balance between nerves and muscles. It is a common cause of headaches, heart palpitations, anxiety, and insomnia. 

If I drink coffee afrcr about three in the afternoon, 1 cannot hill asleep when 1 like to, about el even-thirty. If 1 drink coffee after diimer, as little as a half cup, I lie awake long past midnight If 1 have something important or risky to do the next day, especially some public performance, coffee late m the day invariably interacts with my nervousness to produce stark insomnia. 

Chronic overdose. Excessive prolonged consumption of caffeine causes anxiety, restlessness, tremors, insomnia headache, cardiac extrasystoles and confusion diarrhoea may occur with coffee and constipation with tea. The cause can easily be overlooked if specific enquiry into habits is not made including children regarding cola drinks. Of coffee drinkers, up to 25% who complain of anxiety may benefit from reduction of caffeine intake. An adult heavy user may be defined as one who takes more than 300 mg caffeine/day, i.e. 4 cups of 150 ml of brewed coffee, each containing 80 20 mg caffeine per cup or 5 cups (60 20) of instant coffee. The equivalent for tea would be 10 cups at approximately 30 mg caffeine per cup and of cola drinks about 2.01. Plainly, caffeine drinks brewed to personal taste of consumer or vendor must have an extremely variable concentration according to source of coffee or tea, amormt used, method and duration of brewing. There is also great individual variation in the effect of coffee both between individuals and sometimes in the same individual at different times of life (see Sleep, above). 

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. 

In addition to using herbs and spices in your cooking, you can benefit from their many healing properties by drinking herbal teas. Try them instead of coffee or black tea, both of which are acid-forming in your body. There are many great options, from peppermint tea to blends formulated for medicinal purposes, such as detoxification or combating insomnia or PMS. Check out... 

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... 

Insomnia is sleep disturbance and can be manifest as difficulty falling asleep, poor quality of sleep or premature awakening. Insomnia can be secondary to other conditions, for example anxiety or depression. Other causes are factors such as stress and excessive noise, jet lag, shift work, physical illness and pain, stimulants (coffee and tea), sleep apnoea or poor habits at bedtime. 

There may be some adverse effects due to excessive caffeine intake, such as restlessness, headaches, heart palpitations, heartburn, and insomnia. Some individuals may have a toxic reaction to it. Ingestion by pregnant women and nursing mothers may have adverse effects on fetuses and babies caffeine crosses the placenta and gets into breast milk. Caffeine has a wide margin of safety. A lethal dose for most people would be the amount of caffeine found in about one hundred cups of coffee. 

The interaction between caffeine and mexiletine appears to be established, but its clinical importance is uncertain. Some of the adverse effects of mexiletine might be partially due to caffeine-retention (from drinking tea, coffee, cola drinks, etc.). In excess, caffeine can cause jitteriness, tremor and insomnia. It has also been suggested that the caffeine test for liver function might be impaired by mexiletine. Be alert for these possible effects. 

A study in healthy subjects and recovering alcoholics found that disulfiram 250 or 500 mg daily reduced the clearance of caffeine by about 30%, but a few of the alcoholics had a more than 50% reduction. As a result the levels of caffeine in the body increased. Raised levels of caffeine can cause irritability, insomnia and anxiety, similar to the symptoms of alcohol withdrawal. As coffee consumption is often particularly high among recovering aleoholics, there is the risk that they may turn to alcohol to calm themselves down. To avoid this possible complication it might be wise for recovering alcoholics not to drink too much tea or coffee. Decaffeinated coffee and tea are widely available. 

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