Okay kiddo, so let me tell you about sympathomimetics in a really simple way.
Our body has a part called the sympathetic nervous system, which helps us in stressful and danger situations. It causes a lot of body changes such as increase in heart rate, breathing, and blood pressure. These changes help us fight or run away from danger.
Now, sympathomimetics are medicines that work like the sympathetic nervous system. They cause the same changes in our body like increase in heart rate, breathing, and blood pressure. This is why they are called 'sympathomimetics' because they mimic or copy what the body does when we are in danger or stressed.
Doctors use these medicines to treat different health problems such as asthma, low blood pressure, and even some eye conditions. However, these medicines also have side effects such as jitteriness, nervousness, and increased heart rate which is why they are only given by a doctor and in specific amounts.
So, that’s what sympathomimetics are - they are medicines that copy the body's stress response to help treat various health issues.