If a person experiences an allergic reaction after consuming caffeine, then over-the-counter antihistamines may help reduce any itching, swelling, or hives. In very rare cases, a caffeine allergy may cause anaphylactic shock.
If you experience an extreme adrenaline rush after drinking just a few sips of coffee, you may have caffeine intolerance. People with caffeine intolerance metabolize caffeine more slowly, so the symptoms may last for a couple of hours.
If you're looking to be safe, water is the best way to flush caffeine out of your system. Just drink a lot of it (not too much). That, and time. Don't drink it within several hours of bed, if you struggle with that.
Eating a meal or a snack at the same time you consume caffeine can slow down the absorption of the caffeine. Eat foods high in fiber or protein because they're digested more slowly, which can help reduce the rapid effects of caffeine.
Caffeine Allergy Treatment
The best treatment for caffeine allergy is avoidance. However, if you do accidentally consume caffeine, then over-the-counter antihistamines may help reduce any itching, swelling, or hives.
Drink electrolytes: If you're feeling dehydrated and plain water is not enough to combat the effects, drink something that contains electrolytes, such as Pedialyte. Replenishing your body with electrolytes can prevent you from feeling jittery caused by excess consumption of caffeine.
Cold or allergy.
Paired with caffeine, these medications can produce a one-two punch, making you restless, jittery, and unable to sleep. Bear in mind that older allergy medications that typically make people sleepy, such as diphenhydramine (Benadryl), don't interact with coffee in this way.
Water can help flush caffeine out of your system and keep you properly hydrated. Indications of caffeine withdrawal include drowsiness, headaches, irritability or trouble concentrating, but symptoms should last only a few days.
Caffeine is a stimulant, which is why you feel jittery. More than 400 milligrams (about 4 cups) of caffeine is too much. Drink lots of water, take a walk, practice deep breathing and wait it out. If you experience an irregular heartbeat or feel dizzy or faint after caffeine, go to the emergency room.
Caffeine has very high bioavailability, which means that nearly all of the caffeine consumed is taken up by the body. Within an hour after consumption, the liver and kidneys begin to process and eliminate caffeine through the urine.
But as people age, the enzymes involved in caffeine metabolism grow less efficient. This leads to the slower clearance rate that we discussed earlier. Other factors, such as pregnancy, certain medications and being a smoker can also slow the rate at which caffeine is metabolized.
An effective way to get rid of your jitters is to flush out your system with water. Drinking water will decrease the effects of caffeine in a relatively short time. Being dehydrated can sometimes enhance your jitters, so filling up on some good ole' H2O will only help.
Allergies can take a few hours to even days to subside. However, food allergies are generally not very serious and usually resolve in a few minutes to hours. Some common foods that can trigger an allergic response are peanuts, fish, wheat, milk, eggs, or shellfish.
Physical Activity. Drinking caffeine increases adrenaline in the body, and performing a physical activity is the only way to burn it off. Exercise and movement will help use the excess energy caffeine provide and helps to break it down quicker. Coffee and exercising both increase blood pressure temporarily.
In adults 65 and older, long-term frequent use of benadryl is associated with development of dementia and Alzheimer disease due to their anticholenergic properties. Hospitalized elderly people have an increased risk of delirium. Other effects seen are dry mouth, low blood pressure when standing.
[17] Activated charcoal can bind caffeine if the ingestion is recent, and repeated doses can help diminish serum levels through enterohepatic circulation.
If the symptoms are severe and you have epinephrine, use it as directed right away and call 911 for emergency medical help. If your child does not have an allergy action plan and has mild symptoms, give an antihistamine by mouth such as cetirizine (Zyrtec or a store brand).
Causes of caffeine sensitivity include genetic variations, medications, and lifestyle factors such as smoking. Several coping strategies can help manage caffeine sensitivity, including gradually cutting back your daily intake of caffeine or trying out caffeine-free alternatives.
Generally, “caffeine is completely absorbed within one hour, and effects can last from four to six hours,” Harris-Pincus says. That said, caffeine will stay in your body longer than you're likely aware. On average, the half-life of caffeine is two-and-a-half to five hours.