poor appetite, nausea, vomiting and diarrhoea.rapid heart rate and quickened breathing rate.Regular, heavy use of caffeine (such as more than 4 cups of coffee a day) may eventually cause: People who use caffeinated products, such as weight loss products or powdered caffeine for performance and image enhancing aids, should ensure they are aware of the recommended reasonable amount of caffeine to consume per serving. 8 However, large doses of caffeine are dangerous and there have been deaths from people consuming caffeine in tablet or powder form. It is unlikely that a toxic amount of caffeine can be consumed from caffeinated beverages alone. If a large amount of caffeine is consumed it can also cause an overdose.Ĭall an ambulance straight away by dialling triple zero (000) if you experience any of the following effects. dehydration and needing to urinate more oftenĬhildren and young people who consume energy drinks containing caffeine may also suffer from sleep problems and anxiety.restlessness, excitability and dizziness.The following effects may be experienced within 30 minutes after consuming caffeine, and may continue for up to 6 hours: whether other drugs are taken around the same time.whether the person is used to taking it.It’s important to be careful when taking any type of drug.Ĭaffeine affects everyone differently, based on: Use of any drug always carries some risk. Adapted from Food Standards Australia & New Zealand (2019).

Caffeine structure vs adenosine