Pethidine 100mg/2ml / Promethazine 50mg/2ml solution for injection ampoules
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These are medicines with high potential for misuse but with accepted medical uses. Subject to the strictest controls.
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- Must be stored in a locked controlled drugs cabinet
- Pharmacy must keep a controlled drugs register
- Prescriptions valid for 28 days only
- Prescriptions must include specific details (dose, form, strength, total quantity)
- Cannot be emergency supplied by pharmacists
Other medicines in this category
Morphine, Oxycodone, Fentanyl, Methylphenidate (Ritalin), Amphetamines
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1 branded products available
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.
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SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. 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: 3 · Randomised trials: 6 · 1954–2025
Showing the 50 most relevant studies, sorted by most relevant.
Uribe ES, Rodríguez CAB, Juárez MEN, et al.
2025
- Psychomotor Agitation
- Antipsychotic Agents
- Mental Disorders
BackgroundThe main characteristics present in patients with psychomotor agitation include restlessness, excessive motor activity, irritability, and heightened responsiveness to internal and external stimuli. This umbrella review evaluates the efficacy and safety of pharmacological interventions for patients with psychiatric disorders presenting psychomotor agitation, aged 18 years or older. A comprehensive literature search was conducted to identify umbrella reviews that met our study's inclusion criteria. However, no reviews were found that specifically investigated the efficacy and safety of pharmacological interventions for agitated psychiatric patients presenting with both behavioral and psychological symptoms, such as emotional lability, decreased attention span, and cognitive and behavioral alterations. The primary objective is to assess the effectiveness of pharmacological interventions in controlling patients within a short time frame, measured in hours rather than days. The focus was placed on studies addressing treatment in emergency settings, whether in general hospitals or psychiatric facilities, with an emphasis on managing acute psychomotor agitation rather than long-term maintenance treatment.MethodA comprehensive literature search for meta-analyses and systematic reviews assessing the efficacy and safety of pharmacological treatment for psychomotor agitation in psychiatric inpatients and emergency department patients was conducted across various databases such as PubMed, Scopus, EMBASE, Web of Science and COCHRANE Central database. Included reviews comprised those that incorporated randomized controlled trials (RCTs) or non-randomized controlled trials (NRCTs) comparing the efficacy and safety of pharmacological interventions for agitated psychiatric patients (with both psychological and behavioral symptoms).ResultsLoxapine (10 mg) demonstrated superior efficacy over 5 mg in reducing agitation within 120 min, with inhaled formulations providing rapid relief in patients with acute psychosis. Aripiprazole was effective and caused less sedation compared to Olanzapine, although Haloperidol required fewer additional doses but was less effective at 60 min. Ziprasidone, administered intramuscularly, offered a faster onset and was better tolerated than Haloperidol. Lorazepam proved effective with fewer side effects than antipsychotics and showed enhanced efficacy when combined with them. Midazolam provided rapid sedation but posed risks of severe side effects, especially in older adults. Droperidol was as effective as Olanzapine but provided faster sedation. Combination therapy, such as Haloperidol with Promethazine, effectively reduced aggression with a lower incidence of adverse effects.ConclusionThis umbrella review offers a comprehensive overview of the pharmacological management of psychomotor agitation in patients with psychiatric disorders. Among the most frequently used medications in the reviewed studies were haloperidol, olanzapine, and lorazepam. The findings underscore the importance of tailored treatment approaches and the need for further research to refine the management of psychomotor agitation in psychiatric settings.
Abstract licence: CC BY-NC-ND
Nunes RR, Colares PGB, Montenegro JP
2017
- Meperidine
- Analgesics, Opioid
- Analgesia, Obstetrical
Purpose To verify if pethidine is safe for the conceptus when used during labor. Methods Systematic review in the Capes Periodicals/PubMed and MEDLINE/Virtual Health Library (BVS, in the Portuguese acronym) databases. Results A total of 17 studies published from January 1st, 2000, to September 2nd, 2016, with a total of 1,688 participants involved were included in the present review. There was no record of conceptus vitality decrease associated with low doses of pethidine being administered to mothers during labor. Conclusions Intramuscular (IM) or intravenous (IV) pethidine at low doses, of up to 50 mg, is safe to administer during labor.
Abstract licence: CC BY-NC-ND
Saedi N, Shokouhi N, Feizabad E, et al.
2023
James L. Ford, Michael H. Rubinstein, John E. Hogan
International Journal of Pharmaceutics, 1985
Bjarke Ebert, Steen Andersen, Povl Krogsgaard-Larsen
Neuroscience Letters, 1995
Amy A. Ernst, Steven J. Weiss, Sun Park, et al.
Annals of Emergency Medicine, 2000
Talebpour M, Ghiasnejad Omrani N, Imani F, et al.
2017
BackgroundLaparoscopic gastric plication (LGP) is a technique in the restrictive category of bariatric procedures that reduces the gastric volume and increases intragastric pressure. Nausea and vomiting are the most common complications after this procedure. The goal of this research is to compare the combined effect of promethazine/dexamethasone versus Metoclopramide/ dexamethasone on the prevention of nausea and vomiting after LGP.MethodsIn recovery, the patients were divided into two groups, the Metoclopramide group which was given Metoclopramide 10 mg plus dexamethasone 4 mg/8 hours intravenous for 48 hours, and the promethazine group which was given promethazine 50 mg /12 hours, intramuscular for the first 24 hours and then promethazine 25 mg/12 hours for the next 24 hours plus dexamethasone 4 mg/8 hours intravenous for 48 hours. The frequency of nausea and vomiting, number of reflux episodes, frequency of epigastric fullness, and the duration of walking around q12 hours were recorded in the first 48 hours post-operation.ResultsEighty patients were enrolled into the study. Promethazine group were found to significantly reduce the incidence of PONV in the first 24 hours compared with the other group (41% vs. 97.5%), relative risk = 0.042 [95% CI = 0.006, 0.299]. The mean numbers of epigastric fullness and severity of epigastria pain were lower in the promethazine group (P = 0.01) and the total opioid requirement was also reduced in promethazine group (32.1 ± 2.6 VS .68.5 ± 4.6 mg). However, the patients in the promethazine group were more sedated, which caused the duration of walking q12 hours in this group to decrease.ConclusionsIn morbidly obese patients undergoing laparoscopic gastric plication, promethazine/dexametasone was more effective than Metoclopramide/dexametasone in preventing and reducing the incidence of nausea, epigastric fullness, and reflux. That combination was also more effective than Metoclopramide in reducing the severity of epigastric pain.
Abstract licence: CC BY-NC
Lv S, Zhao W, Rajah GB, et al.
2021
Background: Following an acute ischemic stroke (AIS), rapidly initiated reperfusion therapies [i. e., intravenous thrombolysis (IVT) and endovascular treatment (EVT)] demonstrate robust clinical efficacy. However, only a subset of these patients can benefit from these therapies due to their short treatment windows and potential complications. In addition, many patients despite successful reperfusion still have unfavorable outcomes. Thus, neuroprotection strategies are urgently needed for AIS patients. Chlorpromazine and promethazine (C+P) have been employed in clinical practice for antipsychotic and sedative purposes. A clinical study has also shown a neuroprotective effect of C+P on patients with cerebral hemorrhage and subarachnoid hemorrhage. The safety, feasibility, and preliminary efficacy of intravenous administration of C+P in AIS patients within 24 h of onset will be elucidated. Methods: A prospective randomized controlled trial is proposed with AIS patients. Participants will be randomly allocated to an intervention group and a control group with a 1:1 ratio (n = 30) and will be treated with standard therapies according to the current stroke guidelines. Participants allocated to the intervention group will receive intravenous administration of C+P (chlorpromazine 50 mg and promethazine 50 mg) within 24 h of symptom onset. The primary outcome is safety (mainly hypotension), while the secondary outcomes include changes in functional outcome and infarction volume. Discussions: This study on Rapid Intervention of Chlorpromazine and Promethazine for Hibernation-like Effect in Stroke (RICHES) will be the first prospective randomized controlled trial to ascertain the safety, feasibility, and preliminary efficacy of intravenous C+P as a neuroprotection strategy in AIS patients. These results will provide parameters for future studies, provide insights into treatment effects, and neuroprotection with phenothiazine in AIS. Clinical Trial Registration: www.chictr.org.cn, identifier: ChiCTR2000038727.
Abstract licence: CC BY
I. H. Lok
Human Reproduction, 2002
Deirdre M. O’Hanlon, Sallyann Colbert, Jackie Ragheb, et al.
World Journal of Surgery, 2002
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.
Scientific data (pharmacology, interactions, ADME) is not yet available for this medicine. Clinical sections are sourced from the NHS dm+d database.