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Papaver somniferum L. (Family: Papaveraceae) is a species well known for its diverse alkaloids (100 different benzylisoquinoline alkaloids (BIAs)). L-tyrosine serves as a precursor of several specific metabolites like BIAs. It has been used as an antitussive and potent analgesic to alleviate mild to extreme pain since ancient times. The extraction of pharmaceutically important alkaloids like morphine and codeine from poppy plant reflects the need for the most suitable and standard methods. Several analytical and extraction techniques have been reported in open literature for morphine, codeine and other important alkaloids which play a vital function in drug development and drug discovery. Many studies suggest that opioids are also responsible for adverse effects or secondary complications like dependence and withdrawal. In recent years, opium consumption and addiction are the most important risk factors. Many evidence-based reviews suggest that opium consumption is directly linked or acts as a risk factor for different cancers. In this review, we highlight significant efforts related to research which have been done over the past 5 decades and the complete information on Papaver somniferum including its phytochemistry, pharmacological actions, biosynthetic pathways and analytical techniques of opium alkaloid extraction and the link between opium consumption and cancer-related updates.

Abstract licence: CC BY

Pharmacological pain treatment in older persons is presented by a multi-disciplinary group of European pain experts. Drugs recommended for acute or chronic nociceptive pain, also for neuropathic pain and the routes of administration of choice are the same as those prescribed for younger persons but comorbidities and polypharmacy in older persons increase the risk of adverse effects and drug interactions. Not all drugs are available or authorised in all European countries. For mild-to-moderate pain, non-opioids including paracetamol and non-steroidal anti-inflammatory drugs are first-line treatments, followed by nefopam and metamizole. Codeine, dihydrocodeine and tramadol are prescribed for moderate to severe pain and 'strong' opioids, including morphine, hydromorphone, oxycodone, fentanyl, buprenorphine, methadone and tapentadol, for severe pain. Chronic neuropathic pain treatment relies on coanalgesics, including anti-epileptics (gabapentinoids) and anti-depressants with additional option of topical lidocaine and capsaicine. The choice of analgesic(s) and the route of administration should be guided by the pain characteristics, as well as by the patient's comorbidities, organ function and medications. Several directions have been highlighted to optimise pharmacological pain management in older individuals: (1) before starting pain treatment adequately detect and assess pain and always perform a full geriatric assessment, (2) consider kidney function systematically to adjust the doses of analgesics and avoid the risks of overdose, (3) start with the lowest dose of an analgesic and increase it gradually under the control of the effect, (4) involve the older persons and family in their treatment, (5) reevaluate pain regularly during treatment and (6) combine pharmacological treatment with non-pharmacological approaches.

Abstract licence: CC BY-NC