| Level I | Good quality evidence |
Systematic review of RCTs with consistent findings High quality individual RCT |
| Level II |
Limited quality patient orientated evidence |
Systematic review of lower quality studies or studies with inconsistent findings Low quality clinical trial Cohort studies Case-control studies |
| Level III | Other |
Consensus guidelines, extrapolations from bench research, usual practice, opinion, disease-oriented evidence (intermediate or physiologic outcomes only), or case series |
[8] Benzodiazepines (caution): NICE. Generalised anxiety disorder and panic disorder in adults: management, 26 January 2011. http://nice.org.uk/guidance/cg113
Benzodiazepines (caution): South African Medicines Formulary. 12th Edition. Division of Clinical Pharmacology. University of Cape Town. 2016.
Benzodiazepines, oral (caution): Picton JD, Marino AB, Nealy KL. Benzodiazepine use and cognitive decline in the elderly. Am J Health Syst Pharm. 2018 Jan 1;75(1):e6-e12. https://www.ncbi.nlm.nih.gov/pubmed/29273607
Benzodiazepines, oral (caution): Brandt J, Leong C. Benzodiazepines and Z-Drugs: An Updated Review of Major Adverse Outcomes Reported on in Epidemiologic Research. Drugs R D. 2017 Dec;17(4):493-507. https://www.ncbi.nlm.nih.gov/pubmed/28865038
Benzodiazepines (caution – long-term use): Picton JD, Marino AB, Nealy KL. Benzodiazepine use and cognitive decline in the elderly. Am J Health Syst Pharm. 2018 Jan 1;75(1): e6-e12. https://www.ncbi.nlm.nih.gov/pubmed/29273607
Benzodiazepines (caution – long-term use): Brandt J, Leong C. Benzodiazepines and Z-Drugs: An Updated Review of Major Adverse Outcomes Reported on in Epidemiologic Research. Drugs R D. 2017 Dec;17(4):493-507. https://www.ncbi.nlm.nih.gov/pubmed/28865038