From the pharmaceutical to the clinical: the case for effervescent paracetamol in pain management. A narrative review.

OBJECTIVE: Paracetamol has an established place in the management of mild-to-moderate pain, but has certain limitations, including varying bioavailability, and potential hepatotoxicity if taken in overdose. Effervescent formulations may help to overcome these limitations. METHODS: Pubmed searches, with no limits on date or language, were conducted in February 2020. Further references were identified from the reference lists of retrieved articles, and from the authors' knowledge of the field. RESULTS: Effervescent formulations contain an organic acid (usually citric acid) and carbonate or bicarbonate salts (usually sodium bicarbonate). Upon contact with water, these react to form carbon dioxide, which facilitates the disintegration of the tablet and dissolution of the active drug. Moreover, sodium bicarbonate dose-dependently increases gastric emptying, which together with rapid dissolution facilitates drug absorption. In pharmacokinetic studies, effervescent formulations result in faster absorption of paracetamol than conventional oral formulations, and this translates into a faster onset of analgesia in clinical trials. Effervescent paracetamol has a favorable safety profile, with good tolerability. Importantly, the sodium content of some preparations does not appear to increase cardiovascular risk under real world conditions. Effervescent formulations may also offer advantages in terms of ease of administration and palatability. CONCLUSIONS: Effervescent formulations of paracetamol result in faster drug absorption, and hence more rapid analgesia, than oral tablets, and offer a favorable tolerability and safety profile. The use of such formulations may therefore help to promote appropriate use of paracetamol.

Pharmacist-led medication for pain in France: What population are we talking about? Results of the Optymed study.

OBJECTIVES: Self-medication for alleviating pain is very prevalent in most countries. While safe self-medication is supposed to be dependent on both patient's behaviour and pharmacist's counselling, little is known about the context of the delivery of analgesics available without prescription. The primary objective of the study was to define sociodemographic profiles and behaviours of patients seeking non-prescribed analgesics in French community pharmacies. Secondary objectives included the assessment of pharmacist management and identification of risk-associated patients. METHODS: This is a cross-sectional, national and multicentre study, including adults who asked for a prescription-free medication for acute or chronic physical pain. Information was collected through separate patient and healthcare professional (HCP) questionnaires. RESULTS: The analysis was based on 1215 and 1271 patient and HCP questionnaires, respectively, collected from 164 pharmacies. The patient population consisted in women and men (ratio 6:4), mainly (71%) under 60 years old. Headaches, rheumatologic and musculoskeletal pains were the most frequent reasons for getting analgesics, with a median pain intensity of 6 on a scale graded from 0 (no pain) to 10 (intolerable pain). The main reasons guiding self-medication were time saving, a well-known pain and a well-known product. The mean time allocated to delivery was 4.7minutes. Indications, dose and posology were almost systematically addressed by the pharmacy staff, while contra-indications, drug-drug interaction or safety were mentioned in around two-third of cases. The proportion of patients identified at risks due to an inappropriate context of self-medication was 15.5%. DISCUSSION AND CONCLUSIONS: This study shows a great heterogeneity of the population asking for non-prescribed analgesics in French community pharmacies. While pharmacists were able to identify patients at risks, a significant part may have 'slipped through the net'. The results support further studies to better define patient care pathway and optimize pharmacist-led medication.

Self-medication in pain management: The state of the art of pharmacists' role for optimal Over-The-Counter analgesic use.

BACKGROUND AND OBJECTIVE: Self-medication is associated with an important utilization of Over-The-Counter (OTC) analgesics. The medical outcome resulting from therapeutic options bypassing the physician prescription is a major issue. In that context, pharmacists are expected to play a crucial role. The main objective of this review was to analyse the state-of-the art of pharmacists' role in pain management self-medication. DATABASES AND DATA TREATMENT: An expert multidisciplinary group dedicated to self-medication in pain was established. Selection of publications was performed from PubMedand EMBASE databases which was based on the use of "pain" and/or "self-medication" and/or "self-care" and/or "analgesics" and/or "painkillers" keywords, restricted to the past 10 years. RESULTS: A total of 480 papers were identified, 49 of which papers were considered relevant and finally kept for final discussion, on OTC pain management and pharmacist's role. Literature analysis demonstrates that OTC analgesics are generally safe when appropriately used. Risks associated with misuse or inappropriateness depend on patients' vulnerability (elderly, pregnancy) or behaviour. Social cognitive theory-based intervention and multimedia applications improve self-medication but do not replace health care professional advice Pharmacists' interventions may improve the benefits and safety of OTC analgesic medication, with a better management of pain. CONCLUSIONS: Considering the heterogeneity of patients' knowledge and behaviour reported worldwide, inappropriate use of OTC pain medication should not be underestimated. Community pharmacists are ideally placed to guide self-medication or recommend a medical advice when needed. Embedding pharmacists in primary care pain management is essential and pharmacist-led medication coupled with an appropriate training of pharmacy staffs should be encouraged. SIGNIFICANCE: Analgesics are widely used without prescription, all over the world. They represent the largest market of OTC drugs, with an overall benefit/risk ratio favourable when appropriately used. Because of potential individual risks associated to the ailment or to the patient's behaviour, pharmacists' interventions have proven to optimize analgesic self-medication, provided that pharmacy staffs are both available and more specifically trained. In the future, in pain management, especially self-medication, pharmacists should play an increasing role and should be included in educational programmes and pain management guidelines.

Assessment of procedural pain in French emergency departments: a multi-site, non-interventional, transverse study in patients with minor trauma injury.

Objective: To determine the mean number of procedural painful episodes per patient, and to retrieve information regarding diagnosis, therapeutic procedures and analgesic management, in patients visiting Emergency Departments (EDs) for minor trauma. Methods: This observational, non-interventional, multicenter study in adult patients was performed in 35 French EDs. All patients entering the EDs for minor trauma on a specified day between noon and 10 pm were registered; consenting patients were included in the study. Pain intensity was assessed using a verbal Numerical Rating Scale from 0 (no pain) to 10 (worst possible pain). An episode was described as painful if the difference in pain intensity between pain just before the procedure and maximal pain during the procedure was ≥2. Two independent nurses recorded data on 1 day in each center. Results: Overall, 909 patients were registered, 422 were included in the study, and complete data for 409 patients (1899 procedures) were available for analysis. The mean number of painful episodes per patient was 1.0 ± 1.3. Fifty-one percent of patients reported at least one painful procedure episode. Twenty-one percent of procedures were considered painful. Clinical examination was the procedure most often reported as painful. No preventive or curative analgesic treatment was reported in 95.1% of procedures. Conclusions: There is a need for improvement in routine pain assessment and, therefore, procedural pain management for ED patients. Specific protocols should be developed for procedural pain management, and teams should be trained especially for procedures usually not considered painful.

Kinesiophobia and physical therapy-related pain in musculoskeletal pain: A national multicenter cohort study on patients and their general physicians.

INTRODUCTION: Physical therapy (PT) represents a major approach in musculoskeletal (MSK) pain. This study aimed to assess kinesiophobia, its impact and management, in patients with MSK pain treated by PT. METHODS: A national multicenter, prospective study was conducted in France in patients with MSK pain referred to PT. Kinesiophobia was scored with the Tampa Scale of Kinesiophobia (TSK). Pain, satisfaction, analgesic intake and acceptability were assessed at the initial visit, at the 5th PT session, and at the end of PT. RESULTS: A total of 700 consecutive outpatients with MSK pain, 54.5% female, referred to PT were recruited by 186 GPs: 501 had significant levels of kinesiophobia (TSK score>40). Patients with kinesiophobia were significantly older, with less physical activity, more pain and less acceptability. Patients from GPs presenting with kinesiophobia had both higher pain and kinesiophobia levels. After 5 PT sessions, global satisfaction was significantly higher in patients without kinesiophobia. A significant increase of PT satisfaction was observed in patients who had been given preventive analgesics before PT sessions, in 25.6% of patients. Independent predictors for specific management of PT-induced pain were: patient's kinesiophobia (OR=2.02 [1.07-3.82]), current analgesics treatment (OR=2.05 [1.16-3.63]), GP with postgraduate course on pain (OR=2.65 [1.29-5.43]), GP's independent practice (OR=1.88 [1.01-3.48]). CONCLUSION: Kinesiophobia is frequent in patients with MSK pain, is associated to GPs' kinesiophobia and decreases satisfaction of physical therapy. Preventive analgesic treatment before PT sessions improves patients' satisfaction and should be proposed to improve MSK pain management.