Most medicines have side effects and they can be minimised by taking certain measures, eg eating prior to taking a medicine to reduce abdominal upset, avoiding alcohol, etc. It is advisable to ask the doctor or pharmacist about these measures.
You should also know what to do when side effects are experienced and when to inform the doctor.
When taking a medicine, you should be aware of how you feel and whether there are any bodily changes. If there are any changes, it is advisable to write it down so that you can remember to inform the doctor, pharmacist or nurse.
You should also know when an improvement will be felt and when the next appointment with the doctor is.