Lormetazepam 1mg tablets
Requires a prescription from a doctor or prescriber
Lormatazepam is an orally available benzodiazepine used in the UK for the treatment of short-term insomnia [L927].
Minimal controls; includes benzodiazepines and anabolic steroids
Legal requirements and restrictions
Benzodiazepines and similar medicines. Subject to minimal controlled drug requirements.
Legal requirements
- Prescriptions valid for 28 days
- No controlled drugs register required
- No safe custody requirements
- Record keeping requirements for imports/exports
Other medicines in this category
Official documents, adverse reaction reporting, and safety monitoring
Report a side effect
Submit a Yellow Card report to the MHRA
Official medicine documents
Safety monitoring data
Yellow Card reports
The MHRA Yellow Card scheme collects reports of suspected side effects from healthcare professionals and patients. View the Drug Analysis Profile (iDAP) for real-world adverse reaction data.
View Drug Analysis Profile
Suspected adverse reactions reported for Lormetazepam
Browse all iDAP reports
Interactive Drug Analysis Profiles for all medicines
Report a side effect
Submit a Yellow Card report to the MHRA
Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
EudraVigilance
The European Medicines Agency (EMA) collects suspected adverse reaction reports from across the EU/EEA through the EudraVigilance system. Search for safety data on this medicine.
View EudraVigilance report
Suspected adverse reactions reported for Lormetazepam
About EudraVigilance
Learn about EU pharmacovigilance and safety monitoring
EudraVigilance data is published by the European Medicines Agency (EMA). A suspected adverse reaction is not necessarily caused by the medicine.
19 branded products available
MHRA licensed products
View all licensed products for Lormetazepam on the MHRA register
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
Lormetazepam 1mg tablets
This is the NHS Drug Tariff indicative price used for reimbursement purposes. It may not reflect the price paid by patients or pharmacies.
View full Drug TariffSource: NHS Drug Tariff via NHSBSA. Derived from dm+d VMPP (Virtual Medicinal Product Pack) pricing data. Contains public sector information licensed under the Open Government Licence v3.0.
WHO defined daily dose (DDD)
1 mg
Not a recommended dose. The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. It is a statistical measure used for research and comparison purposes only.
Source: WHO Collaborating Centre for Drug Statistics Methodology, distributed via the NHS dm+d supplementary BNF/ATC mapping files (NHSBSA). Contains public sector information licensed under the Open Government Licence v3.0.
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Check stock at pharmacies and supply information
Pharmacy stock checkers
Search for this medicine at major UK pharmacy chains. These links open the retailer's own website — results depend on their current online catalogue.
Supply & safety information
Official UK regulator monitoring and safety alerts
Pharmacy links redirect to the retailer's own search and do not represent real-time stock levels. Shortage and safety information sourced from MHRA drug safety updates (gov.uk, Crown Copyright under OGL v3.0).
Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
Browse tools
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. BNF code shown is the factual mapping value distributed by NHS Business Services Authority (NHSBSA) in the dm+d supplementary file under OGL v3.0; it is not affiliated with, nor licensed from, the publishers of the British National Formulary. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 2 · Randomised trials: 2 · Trials: 1 · 1979–2026
Showing the 50 most relevant studies, sorted by most relevant.
Stefano Pallanti
International Clinical Psychopharmacology, 2024
- Sleep Initiation and Maintenance Disorders
- Anti-Anxiety Agents
- Benzodiazepines
This review aimed to examine the place of benzodiazepines, specifically lormetazepam, in the treatment of insomnia, including during pregnancy or in patients with psychodermatoses. PubMed was searched for the term "lormetazepam" in association with MeSH terms encompassing anxiety, insomnia/sleep disorders, pregnancy/gestation, and psychodermatoses/skin disorders. English-language articles up to 31 July 2022 were identified. Ad hoc searches for relevant literature were performed at later stages of review development. Multiple randomized, placebo-controlled studies have demonstrated that lormetazepam dose-dependently increases total sleep time, decreases wakefulness over a dosing range of 0.5-2.0 mg, and improves subjective assessments of sleep quality. Lormetazepam is as effective as other benzodiazepines in improving sleep duration and quality, but is better tolerated than the long-acting agents with minimal next-day effects. Benzodiazepines can be used as short-term monotherapy at the lowest effective dose during the second or third trimesters of pregnancy; lormetazepam is also a reasonable choice due to its limited transplacental passage. Insomnia associated with skin disorders or pregnancy can be managed by effective symptom control (especially itching), sleep hygiene, treatment of anxiety/depression, and a short course of hypnotics.
Abstract licence: CC BY-NC-ND 4.0
C. Ancolio, Sophie Tardieu, C Soubrouillard, et al.
Human Psychopharmacology Clinical and Experimental, 2004
- Analysis of Variance
- Family Practice
- Sleep Initiation and Maintenance Disorders
Monica Fabbrini, Cristina Frittelli, Enrica Bonanni, et al.
Clinical Therapeutics, 2005
Pardo-Cortina C, Escuder-Gilabert L, Medina-Hernández MJ, et al.
2026
Chiral HPLC method development still relies heavily on trial-and-error screening. We introduce the Efficient Enantioseparation (EES) parameter─a single metric integrating resolution (Rs) and retention (k)─to move from point predictions to full mobile-phase (MP) profile modeling. Using EES as the response, we trained multiple artificial neural networks (ANNs) on 62 variables (molecular descriptors) and 76 objects (structurally diverse neutral and basic compounds chromatographed on a Lux Cellulose-1 column under aqueous-acetonitrile conditions at nine MP compositions). ANNs were optimized with a chaotic competitive-learning optimizer (CCLNNA), then ranked/selected and combined into a consensus model to enhance robustness and limit overfitting. The ANN-consensus model accurately reproduces full EES-MP profiles (R2 > 0.9) with lower error dispersion, enabling prospective feasibility checks and single-shot selection of high-EES mobile-phase compositions. External tests on fluoxetine and lormetazepam confirmed prospective utility by anticipating separability at one or more MPs (nominating the MP with maximal EES) or nonseparability across the explored MP range. To our knowledge, this work provides the first proof-of-concept for in silico prediction of full EES-MP profiles in chiral HPLC, enabling intelligent MP selection. Rather than a definitive model, this work evaluates the potential of the strategy: consensus stabilizes learning with limited data and offers greener, actionable guidance that can reduce experiments, reagent consumption, and development time. The framework is extensible to broader chemotypes and stationary and mobile phases; larger data sets could further generalize EES-profile prediction and support intelligent MP selection in sustainable chiral HPLC.
Abstract licence: CC BY
Tordjman L, Goltzène MA, Ruppert E
2025
- Sleep Initiation and Maintenance Disorders
- Hypnotics and Sedatives
- Insurance, Health, Reimbursement
ObjectivesInsomnia and hypnotic consumption are major public health concerns, especially due to issues of dependence, side effects, and misuse. This study aims to describe the dispensing trends of reimbursed hypnotic tablets in France from 2012 to 2022, highlighting the potential impact of public policies designed to mainly reduce prescriptions of benzodiazepines and z-drugs.MethodsData were sourced from the Medic'AM database, managed by French National Health Insurance, which records quantities of all reimbursed medications provided by pharmacies. The study focused on 13 reimbursed hypnotics with specific French marketing authorization for insomnia, including z-drugs (zolpidem, zopiclone), antihistamines (alimemazine, doxylamine, chlorazépate+acepromazine, meprobamate+acepromazine), and benzodiazepines (lormetazepam, loprazolam, estazolam, nitrazepam, temazepam, triazolam, flunitrazepam).ResultsOver the 11-year period, alongside public health policies, a 25.30% decrease in reimbursed dispensed tablets was observed. Z-drugs saw a major 39.54% decrease, primarily due to a 69.15% drop in zolpidem prescriptions following the requirement for secure prescription pads. Antihistamines, mainly represented by alimemazine after the withdrawal and delisting of other antihistaminergic specialties, decreased by 5.48%. Benzodiazepines experienced a 16.98% reduction, mainly represented by lormetazepam and loprazolam, following the withdrawal or delisting of flunitrazepam, temazepam, and nitrazepam. Proportionally, the use of z-drugs decreased in favor of antihistamines, while benzodiazepines remained relatively stable. During the COVID-19 pandemic and its lockdowns, there was a smaller reduction in dispensed hypnotics.ConclusionsAnalyzing these trends provides insights into the potential impact of concurrent public health policies. While these trends are promising, continued efforts are necessary, emphasizing preventive and nonpharmacological measures, including improved sleep hygiene.
Abstract licence: CC BY
le Noble JLML, Shudofsky KN, Foudraine N, et al.
2024
- Hypnotics and Sedatives
- Respiration, Artificial
- Intensive Care Units
Background and objectiveDuring the coronavirus disease 2019 (COVID-19) pandemic, sedative prescriptions surged, leading to shortages of midazolam. This study investigates lormetazepam as an adjunct sedative alternative to midazolam for mechanically ventilated patients with COVID-19. We aimed to determine the clinical pharmacokinetics (PK) of enterally administered lormetazepam and provide dosing recommendations.MethodsCritically ill patients with acute respiratory distress syndrome (ARDS) or COVID-19 requiring mechanical ventilation were enrolled in April 2020. Lormetazepam 2 mg every 12 h was administered enterally. Blood samples were collected to quantify lormetazepam and its glucuronide. PK analysis was conducted using a one-compartment model with the Edsim++ KinPop plugin.ResultsThe primary PK parameters (means ± coefficient of variation [CV] %) for absorption constant (Ka), volume of distribution (Vd/F), and clearance (CL/F) were 6.4 h-1, 207 L/70 kg, and 14.5 L/h/kg0.75, respectively. Vd/F and CL/F median values were 2.64 L/kg and 2.53 mL/kg/min, respectively, with a half-life of 10.7 h. Lormetazepam's median ratio to its glucuronide was 11.5. Trough-guided dosing suggested alternatives of 0.92 mg three times daily, 1.62 mg twice daily, or 5.36 mg once daily.ConclusionThis is the first study to report a validated PK model for enterally administered lormetazepam as a sedative adjunct in critically ill adults on mechanical ventilation for ARDS and COVID-19. The model was internally validated using a bootstrap procedure. Adequate lormetazepam concentrations were achieved at prescribed doses, with no significant alterations in clearance or half-life. This population model may aid in dose optimization and sedation management for future intensive care unit (ICU) patients.
Abstract licence: CC BY-NC
Giovanni Biggio, Giovanni Biggio, Claudio Mencacci
Frontiers in Psychiatry, 2026
BackgroundSeasonal affective disorder (SAD) occurs in two main forms: winter-pattern SAD, associated with depressive symptoms during shorter, darker days; and summer-pattern SAD, linked to mood disturbances during longer, hotter days. SAD may develop into a chronic condition with recurring depressive episodes. Risk factors for SAD include geographic latitude, age, gender, genetic predisposition, and lifestyle. Sleep disturbances, such as insomnia, hypersomnia, and circadian rhythm disruptions, are common and can amplify emotional symptoms.ObjectiveThis review explores the clinical features and management strategies for insomnia associated with SAD, focusing on the potential of benzodiazepines (BZDs), in particular lormetazepam.ResultsControversies surround current nonpharmacological and pharmacological strategies for managing sleep disorders in SAD. This review emphasizes the importance of using more effective treatments for insomnia associated with SAD, currently an unmet need. In particular, clinical evidence supports the potential benefits of intermittent hypnotic BZDs to treat insomnia. Among the BZDs, short-term or intermittent use of lormetazepam is an effective treatment option in the management of insomnia.ConclusionInsomnia associated with SAD is an important symptom to monitor because it impacts the patient’s quality of life. BZDs, including lormetazepam, are a standard short-treatment option for insomnia that could improve the sleep symptoms associated with SAD. Comparative clinical trials of the efficacy and safety of lormetazepam in this patient population are required to confirm this.
Abstract licence: CC BY 4.0
Reactions Weekly, 2025
Mezzelani M, Fattorini D, Gorbi S, et al.
2020
- Pharmaceutical Preparations
- Water Pollutants, Chemical
- Mytilus
Despite the increasing interest for pharmaceuticals in the marine environment, their accumulation in wild organisms and consequent environmental hazards are still poorly known. The Mediterranean Sea is highly challenged by the density of coastal populations, large consumption of pharmaceuticals and their often limited removal by Wastewater Treatment Plants (WWTPs). In this respect, the present study aims to provide the first large-scale survey on the distribution of such contaminants of emerging concern in native mussels, Mytilus galloprovincialis from Italian coasts. Organisms were collected from 14 sites representative of relatively unpolluted marine waters along the Adriatic and Tyrrhenian Sea and analysed for 9 common pharmaceuticals including Non-Steroidal Anti-Inflammatory Drugs (NSAIDs: Diclofenac DIC, Ibuprofen IBU, Ketoprofen KET and Nimesulide NIM), the analgesic Acetaminophen AMP, the antiepileptic Carbamazepine CBZ, the antihypertensive Valsartan VAL, the anxiolytic Lormetazepam LOR and the antidepressant Paroxetine PAR. Results indicated the widespread occurrence of the majority of pharmaceuticals in mussel tissues: CBZ was measured in >90% of analysed samples, followed by VAL (>50%), PAR (>40%), and DIC (>30%), while only AMP and KET were never detected. Heterogeneous tissue concentrations ranged from a few units up to hundreds of ng/g (d.w.), while seasonal and interannual variability, investigated over 4 years, did not highlight any clear temporal trend. Limited differences obtained between the Adriatic and Tyrrhenian Sea, as well as coastal versus off-shore sampling sites, suggest that analysed levels of pharmaceuticals in mussels tissues should be considered as baseline concentrations for organisms collected in unpolluted areas of the Mediterranean. This study provided the first unambiguous evidence of the widespread occurrence of pharmaceuticals in marine mussels from Italian coasts, giving novel insights on the potential ecotoxicological hazard from such compounds in marine species.
Abstract licence: CC BY-NC-ND
J. Z. Bhatti, C. A. Alford, I. Hindmarch
1988
- Benzodiazepines
- Lorazepam
- Memory
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
1 found
Half-life
11 h
Mechanism
Lormetazepam, as a benzodiazepine, binds to the regulatory site between the α an…
Food interactions
None known
Human targets
2 targets
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Half-life
11 h
[L927]
Metabolism
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Known interactions with other medications. Always consult a healthcare professional.
Showing 50 of 715 interactions
[L927]
Experimental LD50 values are as follows [L928]: Mouse - 780 mg/kg (intraperitoneal), 1790 mg/kg (oral), 10000 mg/kg (subcutaneous). Rat - 6250 mg/kg (intraperitoneal), 10000 mg/kg (oral), 10000 mg/kg (intraperitoneal).
How the body processes this drug — absorption, distribution, metabolism, and elimination
[L927]
Proteins and enzymes this drug interacts with in the body
PMID:10449790 PMID:16412217
GABA-gated chloride channels, also named GABA(A) receptors (GABAAR), consist of five subunits arranged around a central pore and contain GABA active binding site(s) located at the alpha and beta subunit interfaces (By similarity). When activated by GABA, GABAARs selectively allow the flow of chloride anions across the cell membrane down their electrochemical gradient PMID:10449790 PMID:16412217
ATC N05CD06
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Show
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Lormetazepam
Additional database identifiers
ChemSpider
12750
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4075
GenAtlas
GABRA1
GeneCards
GABRA1
GenBank Gene Database
X13584
GenBank Protein Database
31631
Guide to Pharmacology
404
UniProt Accession
GBRA1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4076
GenAtlas
GABRA2
GeneCards
GABRA2
GenBank Gene Database
S62907
GenBank Protein Database
386422
Guide to Pharmacology
405
UniProt Accession
GBRA2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4077
GenAtlas
GABRA3
GeneCards
GABRA3
GenBank Gene Database
S62908
GenBank Protein Database
386424
Guide to Pharmacology
406
UniProt Accession
GBRA3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4078
GenAtlas
GABRA4
GeneCards
GABRA4
GenBank Gene Database
U30461
GenBank Protein Database
905393
Guide to Pharmacology
407
UniProt Accession
GBRA4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4079
GenAtlas
GABRA5
GeneCards
GABRA5
GenBank Gene Database
L08485
GenBank Protein Database
182916
Guide to Pharmacology
408
UniProt Accession
GBRA5_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4080
GenAtlas
GABRA6
GeneCards
GABRA6
GenBank Gene Database
S81944
GenBank Protein Database
1470364
Guide to Pharmacology
409
UniProt Accession
GBRA6_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4081
GenAtlas
GABRB1
GeneCards
GABRB1
GenBank Gene Database
X14767
GenBank Protein Database
31635
UniProt Accession
GBRB1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4082
GenAtlas
GABRB2
GeneCards
GABRB2
GenBank Gene Database
S67368
GenBank Protein Database
455946
UniProt Accession
GBRB2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4083
GenAtlas
GABRB3
GeneCards
GABRB3
GenBank Gene Database
M82919
GenBank Protein Database
182925
Guide to Pharmacology
412
UniProt Accession
GBRB3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4084
GeneCards
GABRD
GenBank Gene Database
AF016917
GenBank Protein Database
2388693
UniProt Accession
GBRD_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4085
GeneCards
GABRE
GenBank Gene Database
U66661
GenBank Protein Database
1857126
UniProt Accession
GBRE_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4086
GeneCards
GABRG1
GenBank Gene Database
AK122845
GenBank Protein Database
193783776
UniProt Accession
GBRG1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4087
GeneCards
GABRG2
GenBank Gene Database
X15376
GenBank Protein Database
31637
UniProt Accession
GBRG2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4088
GeneCards
GABRG3
GenBank Gene Database
S82769
GenBank Protein Database
1754749
UniProt Accession
GBRG3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4089
GeneCards
GABRP
GenBank Gene Database
U95367
GenBank Protein Database
2197001
UniProt Accession
GBRP_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:14454
GeneCards
GABRQ
GenBank Gene Database
AF189259
GenBank Protein Database
7861736
UniProt Accession
GBRT_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4075
GenAtlas
GABRA1
GeneCards
GABRA1
GenBank Gene Database
X13584
GenBank Protein Database
31631
Guide to Pharmacology
404
UniProt Accession
GBRA1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4076
GenAtlas
GABRA2
GeneCards
GABRA2
GenBank Gene Database
S62907
GenBank Protein Database
386422
Guide to Pharmacology
405
UniProt Accession
GBRA2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4077
GenAtlas
GABRA3
GeneCards
GABRA3
GenBank Gene Database
S62908
GenBank Protein Database
386424
Guide to Pharmacology
406
UniProt Accession
GBRA3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4079
GenAtlas
GABRA5
GeneCards
GABRA5
GenBank Gene Database
L08485
GenBank Protein Database
182916
Guide to Pharmacology
408
UniProt Accession
GBRA5_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4086
GeneCards
GABRG1
GenBank Gene Database
AK122845
GenBank Protein Database
193783776
UniProt Accession
GBRG1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4087
GeneCards
GABRG2
GenBank Gene Database
X15376
GenBank Protein Database
31637
UniProt Accession
GBRG2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:4088
GeneCards
GABRG3
GenBank Gene Database
S82769
GenBank Protein Database
1754749
UniProt Accession
GBRG3_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite the following publications:
Show earlier publications
Structured knowledge from the free knowledge base
ATC classifications (Wikidata)
Linked open data from Wikidata (Q186257), a free and open knowledge base operated by the Wikimedia Foundation. Data is available under the Creative Commons CC0 1.0 Public Domain Dedication.