What to do when too much caffeine disrupts sleep? Most adults can safely consume 200–300 mg per day, and exceeding this amount can lead to sleep issues. The drug can linger in the body and may have subtle consequences, even after the noticeable effects have worn off.Ĭaffeine can lead to sleep of a lesser quality and even disrupt sleep patterns, depending on a person’s sensitivity and how much they have consumed. The overall effects of caffeine can last throughout the day. The duration of the drug’s effects depend upon the dosage and on personal factors, including age, body weight, and how sensitive a person is to caffeine. However, for someone who is very sensitive to caffeine, effects may persist for hours or until the next day. These symptoms tend to go away as the caffeine starts to break down.Īs the body becomes resistant to the drug, people who regularly consume caffeine may barely notice its effects. Most people notice the strongest effects during this time, and many report feeling jittery, needing to urinate, and having sudden bursts of energy. They are then quickly metabolized by the liver. Levels of caffeine peak in the blood within about 15–45 minutes of consumption. Someone who consumes 40 milligrams (mg) of caffeine will have 20 mg remaining in their system after 5 hours. Rare (less than 0.Share on Pinterest Caffeine may have a greater effect on people who are sensitive to it.Ĭaffeine has a half-life of about 5 hours. Uncommon (0.1% to 1%): Convulsions/seizuresįrequency not reported: Irritability, restlessness, jitteriness, tremors, brain injury OcularĬommon (1% to 10%): Retinopathy of prematurity OtherĬommon (1% to 10%): Perinatal disorder (trace aspirates, feeding intolerances), injection site reaction, sepsis, accidental injury, abnormal healing, infusion site phlebitis and inflammationįrequency not reported: Failure to thrive, deafness Respiratoryįrequency not reported: Tachypnea Hypersensitivity CardiovascularĬommon (1% to 10%): Hemorrhage, tachycardiaįrequency not reported: Increased left ventricular output, increased stroke volume, hypertension DermatologicĬommon (1% to 10%): Rash, dry skin, skin breakdown HematologicĬommon (1% to 10%): Disseminated intravascular coagulation, anemiaįrequency not reported: Decreased hemoglobin HepaticĬommon (1% to 10%): Kidney failure MetabolicĬommon (1% to 10%): Acidosis, hyperglycemiaįrequency not reported: Hypoglycemia, temporary reduced weight gain, decreased thyroxine Nervous system Long-term follow-up studies have not shown caffeine to adversely affect neurological development or growth parameters. Very common (10% or more): Constipation (up to 17.4%)Ĭommon (1% to 10%): Necrotizing enterocolitis, gastritis, GI hemorrhage, gastroesophageal reflux, dilated bowel loopsįrequency not reported: Increased gastric aspirate, GI intolerance, vomiting, regurgitation General Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.Ĭheck with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Less commonĪpplies to caffeine: compounding powder, intravenous solution, oral gum, oral liquid, oral tablet, oral tablet dispersible, oral tablet extended release. These side effects may go away during treatment as your body adjusts to the medicine. Some side effects of caffeine may occur that usually do not need medical attention. Get emergency help immediately if any of the following symptoms of overdose occur while taking caffeine: Symptoms of overdose vomiting of blood or material that looks like coffee grounds.burning feeling or tenderness in the stomach.Although not all of these side effects may occur, if they do occur they may need medical attention.Ĭheck with your doctor or nurse immediately if any of the following side effects occur while taking caffeine: More common Serious side effects of CaffeineĪlong with its needed effects, caffeine may cause some unwanted effects. Continue reading for a comprehensive list of adverse effects.Īpplies to caffeine: intravenous solution. More frequently reported side effects include: necrotizing enterocolitis.
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