The £310 million additional funding for drug treatment services is separate from the public health grant. Prevention is at the heart of this government’s approach to tackling drugs and this campaign will ensure young people have the facts they need to make informed decisions about their health and safety, so they think twice about putting themselves in danger. In the United States, ketamine is most commonly used by teens and young adults of higher socioeconomic status, often polydrug-using adults. Some illegal ketamine use starts as “self-medication” for depression, anxiety, or trauma.
Both before and after ketamine administration, monitoring CV, neuropsychiatric, and GI markers is critical for managing treatment-emergent adverse events (TEAEs). Adverse event monitoring strategies include pre-treatment physical and mental examinations, continuous CV monitoring, and patient supervision for neuropsychiatric symptoms such as dissociation and psychotomimetic effects45. Furthermore, GI problems can be addressed by fasting before administration, using antiemetics, and educating patients about typical side effects, with emergency measures in place for extreme responses46,47.
There has been an eight-fold increase in the number of people requiring treatment for ketamine since 2015. Ketamine intoxication can present similarly to PCP, methoxetamine, and dextromethorphan intoxication, all of which bind to the N-methyl-D-aspartate receptor. Also, providers should consider intoxication with alcohol, amphetamine, cocaine, LSD, MDMA, and salicylate, as well as delirium tremens from alcohol withdrawal.
Additionally, ketamine can produce mood changes, dysphoria, disorientation, and hallucinations; hence, it is important to check neuropsychiatric conditions45,61,62. The World Drug Report in 2015 categorized ketamine as a worldwide recreational drug, with 58 countries reporting illicit use. However, ketamine misuse occurs on a relatively small scale, and PCP derivatives constituted only 1% of “new psychoactive substances” reported to the United Nations Office of Drugs and Crime in 2014 (fact file on ketamine). Ketamine misuse often occurs in combination with other substances, including alcohol, amphetamines, MDMA, cocaine, and caffeine. Ketamine users need more ketamine to obtain the same effect, and they also report “K cramps,” severe abdominal pain in classic withdrawal symptoms of addiction.
At lower doses, the drug induces a state of mild dissociation with vivid hallucinations and the distortion of time and space (such as melting into the surroundings and out-of-body experience) 32,64. In addition to concurrent drugs, mental and medical comorbidities must be considered to properly manage any adverse effects. It is metabolized in the liver by CYP3A4, CYP2B6 and CYP2C9 to norketamine (via N-demethylation) with subsequent metabolism of norketamine into 4-, 5-and 6-hydroxynorketamine (by CYP2A6 and CYP2B6).
The only study that examined the safety of high dose long term ketamine in CRPS patients (anaesthetic doses over 5 days) demonstrated no severe cognitive defects 62. Overall, these data indicate harmful effects of ketamine when used in uncontrolled circumstances. Extrapolating the deleterious effects of ketamine to the use in clinical circumstances is difficult, since the observed effects in frequent drug users are present after usage of high doses of ketamine. Furthermore, it is difficult to determine whether all these effects are directly linked to the use of ketamine per se since illicit drug users often misuse several drugs of abuse simultaneously (e.g. XTC, cocaine).
EAU aims to warn about the dangerous impact of ketamine on the brain, applicable regulations and laws, and the risks and transmission methods of infectious diseases, such as HIV and hepatitis C83. According to the study, IBM is more effective at increasing awareness and knowledge about ketamine use and abuse (105). Results showed that 91% of patients reported reduced scores and improvement in GAD symptoms, such as constant anxiety, difficulty relaxing, restlessness, irritability, and feelings of impending doom68. Among depressed patients, 79% experienced lower scores and improvements in appetite, sleep, concentration, negative feelings, and energy79. By the program’s end, 86% of PTSD screenings were negative, and patients reported overcoming their fears. Additionally, clinical improvement was observed in 92% of patients facing life and work challenges68.
People who use it claim that a ketamine trip is superior to a PCP or LSD trip because it produces shorter-term hallucinations that last 30 minutes to an hour instead of several hours. However, the authors did highlight that the anxiety-relieving effects of ketamine are temporary, with symptoms often returning around 2 weeks after taking it. Ketamine is a Schedule III non-narcotic that the Food and Drug Administration (FDA) has approved for use only as a general anesthetic. Injection site reactions, erythema, localized pain, and morbilliform rash are dermatological responses of ketamine administration19. Young people don’t always realise the decision to take drugs such as ketamine can have profound effects. Mark S. Gold, M.D., is a pioneering researcher, professor, and chairman of psychiatry at Yale, the University of Florida, and Washington University in St Louis.
Advanced safety protocols for ketamine focus on optimizing administration routes (Table 4), why do people take ketamine risk factors and dangers such as IN, oral, and IV, while minimizing side effects. Personalized dosing regimens, based on factors like chronic illness and BMI, are crucial for effective treatment89. Baseline psychiatric status should guide dosing, with lower doses for episodic depression and higher doses for chronic pain. Technological monitoring devices are recommended for early detection of adverse effects, while biomarker profiling offers improved monitoring efficiency.
The burgeoning presence of ketamine – especially among people in their 20s and 30s – was driven by availability and gone from being diverted from pharmaceutical supplies to being manufactured under clandestine conditions. The number of people seeking treatment for ketamine addiction in the United Kingdom doubled between 2019 and 2023, from 1,140 to 2,211. The proportion of young people receiving substance misuse treatment with ketamine problems increased from under 1 percent in 2015 to 6 percent in 2023. Ketamine is an NMDA receptor antagonist, meaning it blocks the N-methyl-D-aspartate neurotransmitter in the brain.
Although psychedelic side effects occur in a dose dependent fashion they already present themselves at relatively low doses, used in the treatment of chronic pain (20–30 mg h−1). Furthermore an intense sense of drug high is often perceived that some patients experience as extremely unpleasant, while others have an intense feeling of euphoria. Other CNS side effects include dizziness, blurred vision, vertigo, nausea/vomiting, dysphasia, nystagmus, nightmares or vivid dreams, impaired motor function and memory deficits 32,53,54. Psychedelic effects decrease rapidly after termination of ketamine administration, although Bagrove et al. 55 report that in the 3 nights following ketamine administration the incidence of unpleasant dreams was significantly increased compared with placebo. Given these effects, ketamine is used to induce a schizophrenia-like state to investigate this syndrome in healthy volunteers 56,57.
Ketamine is a dissociative anaesthetic that produces profound analgesia and amnesia. Its use in contemporary anaesthesia is limited given the occurrence of a variety of side effects, most importantly the induction of a psychedelic state causing agitation, hallucinations and panic attacks (i.e. emergence and excitation symptoms). Although these side effects may be prevented or treated (see above), the availability of alternatives has limited the use of ketamine in anaesthesia to specific indications (e.g. paediatric and trauma anaesthesia). However, since its first synthesis, the interest in ketamine is still growing with in 2011 alone 588 publications in PubMed.