How do you read a medication label?
Prescribing information looks dense but follows a predictable structure, and knowing the shape makes it far quicker to use. It opens with what the medicine is approved to treat, then how it is taken, then who should not take it, then side effects, then interactions and storage.
Two sections repay reading before you need them. The one describing effects to report tells you which things warrant contacting a clinician rather than waiting. The one on interactions covers other medicines, supplements and sometimes foods, and is the section people most often skip.
If a medicine carries a boxed warning it appears at the top, inside a border. That signals a serious risk worth discussing, not that the medicine should not be used. Anything you cannot follow is a good question for a pharmacist, who is generally the most accessible person for exactly this.