Caffeine rarely affects the respiratory system. If you notice that you become short of breath, developing wheezing and coughing after you ingest caffeine, you need to talk with your doctor for an evaluation. Caffeine can have an effect on your respiratory system if you overdose on the drug or if you're allergic to the substance. Avoid the consumption of all caffeine until you can be properly evaluated by your doctor. In rare cases, an allergic reaction can cause severe respiratory complications, leading to death.
About Caffeine
Caffeine may be found in more products than you think. It's commonly found in sports drinks, energy bars, chocolate, tea and coffee. Caffeine is a naturally occurring substance that stimulates your central nervous system, causing mental alertness and alleviating fatigue. Some medications include caffeine to help the body absorb the medication at a faster rate. MayoClinic.com states that you shouldn't consume more than 1,600 mg of caffeine in a 24-hour period. The average cup of coffee contains about 133 mg of caffeine per 8 oz., according to the Center for Science in the Public Interest.
Hypersensitivity
As with any drug, you may have a hypersensitivity to caffeine. Hypersensitivity is another name for an allergic reaction that could occur if your immune system mistakes the caffeine as a dangerous substance. The American Academy of Allergy, Asthma and Immunology states that if you're hypersensitive to caffeine, your immune system releases immunoglobulin E, or IgE, antibodies to fight off the substance. The release of IgE antibodies causes white blood cells to create histamine, leading to constriction of your airways and inflammation of your lungs.
Overdose
Respiratory symptoms from caffeine consumption may be a sign of an overdose; common side effects do not affect your respiratory system, unless you've consumed too much. MedlinePlus states that breathing trouble is a common result of a caffeine overdose. An overdose may occur accidentally by consuming products that contain caffeine that you're unaware of. If you're taking prescription drugs, discuss your caffeine consumption with your doctor before using a new medication.
Treatment
An allergic reaction to caffeine is best treated by avoiding it. If you accidentally ingest the drug, call your doctor. An oral antihistamine may help alleviate your symptoms, but you may require an injection of epinephrine if the reaction is severe. A caffeine overdose will require emergency medical personnel. Call poison control and go to the nearest emergency room. Your digestive system may need to be flushed to remove the excessive amount of caffeine.
