Medicines reconciliation aims to ensure a patient's prescribed medications correspond to what they were taking before admission to minimize errors and harm. It involves collecting, checking, and communicating any discrepancies between current and past medications. Medicines Usage Reviews conducted by pharmacists allow patients to check their understanding of their conditions and medications. The pharmacist can identify issues like incorrect use, doses, or adverse effects that require follow up. MURs fall under level 1 reviews conducted with the patient and no medical records. Higher level reviews involve doctors, nurses, or pharmacists reviewing records with or without the patient.