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They analyzed 25 short-term, placebo-controlled randomized trials, which are considered one of the strongest types of clinical studies because they compare an active treatment to an inactive placebo. The review was led by researchers from Oregon Health & Science University working with other experts in the field. DZ — MAC, AA, RWMV, GL, KL, JED, MMA, BYH, CH and PH screened search records, extracted data, and assessed the risk of bias of the eligible studies.

By acting as a partial agonist at this receptor (THC can modulate both excitatory and inhibitory signaling), which leads to diminished nociceptive transmission . Although exact prevalence estimates vary by state and by program maturity (chronic pain regularly outpaces conditions like anxiety), cancer-related symptoms, and post-traumatic stress disorder in prompting new patient enrollments . Large-scale surveys and registry data consistently show that chronic pain is the leading condition for which patients obtain medical cannabis 23,25,26,27,28,29,30,31. Cost–utility studies of surgical options — for instance, show that lumbar interbody fusion can yield favorable cost per quality-adjusted life year (QALY), but outcomes vary widely based on the specific surgical approach and methodological assumptions . “Further research is crucial to better understand the potential benefits and risks of medical cannabis. The paper was not a systemic review — and it did not conduct a formal risk of bias assessment of the included studies.

One plausible mechanism is that fewer unhealthy days per month indicates improved self-management and day-to-day functioning, which, in turn, can reduce the perceived need for emergent services. Several contextual factors could account for the lower rates of urgent care and ED visits observed in the cannabis-exposed group. It is logical that when we find a significantly lower number of unhealthy days among the cannabis-exposed group — we also find lower downstream healthcare utilization in the form of fewer urgent care and ED visits.

While opioids are effective in reducing pain, their use is fraught with the risk of tolerance, dependence, and potential for abuse. According to the https://themarijuanaherald.com/2025/12/understanding-cbd-and-thc-gummies/ World Health Organization (WHO), pain is a leading cause of disability, impacting social and occupational function . Pain itself is a multifaceted symptom (often categorized into acute and chronic types), where chronic pain persists beyond standard tissue healing time and poses significant challenges to conventional treatment methods. The clinical practice of pain management encompasses a variety of strategies — including pharmacological, interventional, and psychological approaches.

An important moment for cannabis research has been created by the issues associated with opioids, including misuse and deaths related to them. Numerous patients using medical cannabis claim it is as effective as, or even more effective than, opioids in managing their pain. One potential solution is cannabis; it effectively alleviates pain (poses a lower risk of dependence), and unlike opioids, does not lead to fatal overdoses. To combat this crisis, it is essential to find alternative treatments for pain that do not involve opioids. Currently, prescription drug overdoses rank as the primary cause of accidental fatalities in the United States.

Research conducted on adolescents over time revealed a correlation between high-potency cannabis and a rise in psychotic symptoms , 12.4% compared to 7.1% for low-potency, as well as generalized anxiety disorder (19.1% versus 11.6%). The Food and Drug Administration has shown that effectiveness exists — but only for a limited variety of conditions. A thorough review led by UCLA Health concluded that medical cannabis does not have sufficient scientific support for most conditions it is frequently used to treat (such as acute pain), anxiety, and insomnia. This living systematic review, which will be updated quarterly by the Agency for Healthcare Research and Quality (AHRQ), assessed existing evidence on the advantages and disadvantages of cannabinoids and similar plant-based compounds for chronic pain management.

The Mechanisms of Cannabinoids

Existing reviews often summarize cannabis-based therapies broadly without detailed consideration of neurological mechanisms (critical synthesis of clinical trial data), or systematic comparison with opioids within evidence-based pain frameworks. And (while there is a lot of positive talk about cannabis), there are risks—especially if you’re over 55. Now leading experts at Harvard Medical School are here to help you separate fact from frightening fiction about medical cannabis so you can make informed decisions. "Some may take it daily for pain management, while others take it multiple times per week or only when flare-ups occur," says Gruber. In this NMA of randomised trials of patients with chronic non-cancer pain (low to moderate certainty evidence suggests that cannabis for medical use may provide similarly small improvements in pain), physical function and sleep compared with opioids, and fewer discontinuations due to adverse events.

Experiencing no cognitive decline during the day has led to improved cognitive function — allowing for proper sleep at night instead of relying on medication for rest. “At 56 years old and female, I accomplish so much,... my anxiety has dropped from a 10 to a 4 since using the CBD vape.” Meanwhile, some female participants aged 45 reported no noticeable pain reduction or were uncertain about the overall effectiveness of medical cannabis treatment. However — it was fantastic for typical daily pain. “At 45 years old and female, some studies integrate additional therapies like opioids or nonsteroidal anti-inflammatory drugs (NSAIDs), while others focus solely on cannabinoids, which results in varying observed analgesic effects.”

A systematic review and meta-analysis conducted in 2017 and a subsequent updated analysis by Nielsen et al. in 2022 demonstrated that cannabinoids have an opioid-sparing effect.

“I’ve only been using medical cannabis for a short period. The vape is the only method that offers me benefits,” stated a 68-year-old male, who found his pain more manageable. “At 67 years old and male, the first strain I tried didn't show any noticeable difference, but when I revisited with a strain that had a higher THC content, I was able to perceive a difference in my lower extremities , related to back issues,.” The THC also stimulates my appetite, which I view positively. “The only downside is that late at night — the THC-induced hunger sets in.” “At 63 years old and male, THC is beneficial on days I work in the yard as it aids my sleep.”

In a brief phone interview, participants were questioned about the overall effectiveness of medical cannabis treatment for their conditions. Individuals suffering from cognitive impairment or terminal illnesses were not included in the study. In 2019, about 50.2 million U.S. adults (20.5%) reported experiencing chronic pain symptoms most days or every day (Yong et al., 2022). Notable benefits included decreased pain intensity (reduced anxiety), and lower dependency on pain and psychiatric medications. Data collected from interviews with participants in a three-month pilot study were analyzed to evaluate the perceived effectiveness of medical cannabis for chronic pain and related outcomes.

Data extraction and risk of bias

“Chronic pain is distinct from what most people experience day to day with acute pain. Also, pain is a complex and subjective experience that varies widely between patients and even within the same patient over time. Synthetic products might solve this problem, but the experts agreed that it is likely the combination of the wide range of compounds in the plant working together that enhances the overall therapeutic impact. Lindley and Rzasa Lynn have also compared the short-term acute effects of a THC and minimal CBD vaporized combination with those of placebo and oxycodone. The authors suggested that the psychoactive effects of medical cannabis (rather than being solely negative), may be a part of its therapeutic mechanism.

They used the female plant’s flowers and created three different preparations of varying strengths.4 The strongest forms were used to reduce pain (help with sleep), calm patients, stop muscle spasms, and reduce inflammation.5 Western medicine did not start studying cannabis until the early 19th century.6 We used the GRADE approach to assess the certainty of the evidence for all outcomes and effect estimates from NMA.37 Ratings of the certainty of evidence for direct and indirect estimates included assessment of risk of bias, inconsistency, indirectness, publication bias and intransitivity , only for indirect estimates,. During this time — volunteers consumed an average of four to 17 marijuana cigarettes per day and were tested periodically to gauge their response to painful heat applied to the skin. There are several potential interactions between THC and CBD and other medications (including those with similar psychoactive effects such as central nervous system depressants), benzodiazepines, opioids, alcohol, and antihistamines, which may result in increased sedation.