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Although occasional use of caffeine pills is considered safe, stomach aches are a sign of caffeine overdose, which will require emergency medical attention 12. According to Drugs.com caffeine pills can cause a wide range of common side effects, but stomach pain or aches are commonly the result of ingesting too much caffeine 1. Before using caffeine pills you need to talk with your doctor about the safety and potential side effects involved with this medication 1.
Caffeine is a drug that naturally occurs in certain plant-based foods, such as coffee beans, cocoa beans and tea leaves 1. Caffeine is also synthetically produced for use in medications and as an additive in certain beverages, such as sodas 1. Caffeine pills are not intended for long-term use and can cause unpleasant side effects, such as:
- according to MayoClinic.com 1
Caffeine and Swollen Lips
Stomach aches that develop after taking caffeine pills are a common sign of caffeine overdose, according to MedlinePlus 12. Although caffeine is naturally occurring in various plant-based foods, it is still considered a drug that can cause an overdose 12. Other symptoms aside from stomach pain include:
- breathing difficulty
- rapid heartbeat
- increased urination
- muscle twitching
If you suspect that you have overdosed on caffeine pills, call 911 or poison control immediately 1. It’s possible to overdose while taking caffeine pills and consuming caffeine from other sources, such as coffee 12.
Caffeine pills are recommended for adults only and should not be taken by children under the age of 12 without a doctor’s recommendation 1. Drugs.com states that the recommended dose for adults is 100 to 200 mg of caffeine every 3 to 4 hours, without exceeding more than 1,000 mg in a 24-hour period 1. The average 8 oz. cup of coffee contains between 102 and 200 mg of caffeine, generic cola contains about 20 mg per 12 ounces and an 8 oz 1. cup of black tea contains around 53 mg, according to the Center for Science in the Public Interest 3.
Anhydrous Caffeine Vs. Caffeine
If you have overdosed on caffeine pills, you will require emergency medical attention in a hospital 1. Common treatments for caffeine overdose include:
Caffeine and Swollen Lips
Anhydrous Caffeine Vs. Caffeine
Can Caffeine Cause Hives?
Caffeine Content in One Cup of Coffee Vs. One Shot of Espresso
Can Drinking Coffee Cause Dry Mouth?
Congestive Heart Failure & Caffeine
Allergic Reactions to Caffeine
Caffeine & Back Pain
How Much Caffeine Is in McDonald's Sweet Tea?
Ephedrine Vs. Caffeine
- Drugs.com: Caffeine
- MedlinePlus: Caffeine Overdose
- Center for Science in the Public Interest: Caffeine Content
- Meredith SE, Juliano LM, Hughes JR, Griffiths RR. Caffeine Use Disorder: A Comprehensive Review and Research Agenda. J Caffeine Res. 2013;3(3):114-130. doi:10.1089/jcr.2013.0016
- Richards G, Smith AP. A Review of Energy Drinks and Mental Health, with a Focus on Stress, Anxiety, and Depression. J Caffeine Res. 2016;6(2):49-63. doi:10.1089/jcr.2015.0033
- Brunyé TT, Mahoney CR, Rapp DN, Ditman T, Taylor HA. Caffeine enhances real-world language processing: evidence from a proofreading task. J Exp Psychol Appl. 2012;18(1):95-108. doi:10.1037/a0025851
- Koppelstaetter F, Poeppel TD, Siedentopf CM, et al. Caffeine and cognition in functional magnetic resonance imaging. J Alzheimers Dis. 2010;20 Suppl 1:S71-84. doi:10.3233/JAD-2010-1417
- Harrell PT, Juliano LM. Caffeine expectancies influence the subjective and behavioral effects of caffeine. Psychopharmacology (Berl). 2009;207(2):335-42. doi:10.1007/s00213-009-1658-5
- Lucas M, O'reilly EJ, Pan A, et al. Coffee, caffeine, and risk of completed suicide: results from three prospective cohorts of American adults. World J Biol Psychiatry. 2014;15(5):377-86. doi:10.3109/15622975.2013.795243
- Abdel-Hady H, Nasef N, Shabaan AE, Nour I. Caffeine therapy in preterm infants. World J Clin Pediatr. 2015;4(4):81-93. doi:10.5409/wjcp.v4.i4.81
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th edition. Washington DC; 2013.
- Turnbull D, Rodricks JV, Mariano GF, Chowdhury F. Caffeine and cardiovascular health. Regul Toxicol Pharmacol. 2017;89:165-185. doi:10.1016/j.yrtph.2017.07.025
- Centers for Disease Control and Prevention. Alcohol and Caffeine. Updated October 23, 2018.
- Alsunni AA. Energy Drink Consumption: Beneficial and Adverse Health Effects. Int J Health Sci (Qassim). 2015;9(4):468-474.
- Lyngsø J, Ramlau-Hansen CH, Bay B, Ingerslev HJ, Hulman A, Kesmodel US. Association between coffee or caffeine consumption and fecundity and fertility: a systematic review and dose-response meta-analysis. Clin Epidemiol. 2017;9:699-719. doi:10.2147/CLEP.S146496
- U.S. Food and Drug Administration. Pure and Highly Concentrated Caffeine. Updated September 21, 2018.
- National Institute on Drug Abuse. Drugs, Brains, and Behavior: The Science of Addiction. Updated July 2018.
Diane Marks started her writing career in 2010 and has been in health care administration for more than 30 years. She holds a registered nurse license from Citizens General Hospital School of Nursing, a Bachelor of Arts in health care education from California University of Pennsylvania and a Master of Science in health administration from the University of Pittsburgh.