ReplyThe following table shows the number of items dispensed and claimed for reimbursement for each of the categories requested, covering the most recently published 12-month period and the 12 months prior:Drug groupFinancial yearTotal number of itemsClonazepam2022/231,048,0812023/241,059,421Other benzodiazepines2022/237,156,8452023/246,814,129Clonazepam and other benzodiazepines2022/238,204,9262023/247,873,550Z-drugs2022/235,316,6272023/245,113,574Antidepressants2022/2386,263,7222023/2489,131,582Opioids2022/2339,401,5172023/2439,046,206Pregabalin2022/238,775,6992023/249,180,793Gabapentin2022/237,413,7592023/247,408,375Source: NHS Business Services Authority.In addition, the following table shows the patient identifiable information for the number of items dispensed and claimed for reimbursement for each of the categories requested, for the most recently published 12-month period and the 12 months prior:Drug groupFinancial YearTotal number of unique identified patientsPercentage of items where the patient has been identifiedClonazepam2022/2385,61398.22%2023/2485,19198.16%Other benzodiazepines2022/231,253,96297.06%2023/241,186,00197.01%Clonazepam and other benzodiazepines2022/231,324,79297.21%2023/241,256,94197.17%Z-drugs2022/23795,959 98.29%2023/24764,743 98.27%Antidepressants2022/238,563,148 99.16%2023/248,747,095 99.22%Opioids2022/235,593,035 98.92%2023/245,562,718 98.94%Pregabalin2022/23786,403 99.36%2023/24823,231 99.41%Gabapentin2022/23808,562 99.36%2023/24799,144 99.41Source: NHS Business Services Authority.Notes:for clonazepam and other benzodiazepines, this is the number of unique patients who have received any combination of clonazepam and/or other benzodiazepines, and no patient is counted twice even where multiple medications have been received;the figures for pregabalin and gabapentin refer to the combined category of gabapentinoids; andthe data in this answer in both tables on opioids, is not directly comparable to data from the previous Parliamentary Questions, PQ137238 and PQ137239, referenced in the question, as these tables refer to opioids in general, while the previous Parliamentary Questions referred to opioid analgesics only.