If you take a medicine in a way that is different from what the doctor prescribed, it is called prescription drug abuse. It could be
Taking a medicine that was prescribed for someone else
Taking a larger dose than you are supposed to
Taking the medicine in a different way than you are supposed to. This might be crushing tablets and then snorting or injecting them.
Using the medicine for another purpose, such as getting high
Abusing some prescription drugs can lead to addiction. These include narcotic painkillers, sedatives, tranquilizers, and stimulants.
Every medicine has some risk of side effects. Doctors take this into account when prescribing medicines. People who abuse these drugs may not understand the risks. The medicines may not be safe for them, especially at higher doses or when taken with other medicines.
Many pills look the same. It is extremely dangerous to take any pill that you are uncertain about or was not prescribed for you. People can also have different reactions to drugs due to the differences in each person’s body chemistry. A drug that was okay for one person could be very risky, even fatal, for someone else.