CBD or cannabis for chronic pain: side effects

By Isabella TortaOctober 03, 2025

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Chronic pain is a condition that affects millions of people, often with devastating impacts on quality of life.

When traditional medications like opioids are not enough or cause side effects, many patients seek alternative solutions.

Among these, therapeutic cannabis is gaining increasing attention, but one must be careful because all that glitters is not gold.

What is chronic pain and why is it difficult to treat

Chronic pain is defined as a painful sensation that persists for more than three months.

It can be of neuropathic, inflammatory, or musculoskeletal origin, as in the case of joint pain.

Traditional medications, including NSAIDs and opioids, offer temporary relief but carry risks of addiction, tolerance, and side effects.

Can therapeutic cannabis be used for chronic pain?

Chronic pain is one of the most debilitating and widespread conditions, often resistant to conventional drugs. In this context, many patients approach therapeutic cannabis with the hope of finding relief.

👉 But does it really work? And above all: is it safe?

Cannabis and chronic pain: limited benefits and risks to evaluate

In Italy, therapeutic cannabis can be prescribed to treat certain forms of chronic pain, especially of neuropathic origin. However, clinical results are not unanimous:

Pain relief is often partial and not always lasting.
The presence of THC can reduce the perception of pain but compromises memory, attention, and mental clarity.
Prolonged use leads to the development of tolerance, forcing an increase in doses.
Side effects include anxiety, sleep disturbances, and mood swings.

👉 For this reason, talking about cannabis and chronic pain means considering both the potential and the limitations, especially those linked to THC.

CBD: its role in pain management

CBD, or cannabidiol, is a non-psychoactive cannabinoid that acts as a pain modulator. Unlike THC, it does not alter cognitive functions and does not cause addiction.

CBD for pain: how it works

It regulates TRPV1 and TRPV2 receptors, which are involved in the perception of inflammatory pain.
It interacts with μ and δ opioid receptors, promoting a natural action on the body's endogenous pain system.
It stimulates CB1 and CB2 receptors, contributing to neurochemical rebalancing and the reduction of inflammation.

✅ CBD for pain offers gradual and sustainable relief, ideal for those suffering from joint or neuropathic pain.

open hands holding a cannabis leaf and a bottle of 20% cbd oil from agrilab

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Is cannabis an anti-inflammatory? Does it really work?

Many also attribute anti-inflammatory properties to therapeutic cannabis. But what does science say?

THC and inflammation: conflicting results

THC can alter cytokine regulation and increase oxidative stress, but it does not act directly on inflammatory processes. Its anti-inflammatory effect is therefore inconsistent and unpredictable.

CBD and inflammation: a more promising approach

CBD, on the other hand, shows greater efficacy in modulating inflammation, especially in cases of chronic pain with an inflammatory component. CBD oil for pain, rich in THC-free CBD isolate, is often used for topical or systemic applications.

THC and inflammation: a response that is not so effective

THC, while reducing painful symptoms, does not act directly on inflammatory mechanisms. Some studies show that it can:

Alter the regulation of inflammatory cytokines.
Increase oxidative stress.
Compromise the immune response.

👉 Consequently, the anti-inflammatory effect of compositions with THC is inconsistent, unpredictable, and not always advantageous for the patient.

Is CBD a painkiller?

Yes, but not in the traditional sense.

CBD isolate: a modulator, not a sedative

CBD isolate does not “turn off” pain the way NSAIDs or opioids do. Rather, it regulates the activity of receptors involved in the transmission and perception of pain:

5-HT1A → reduces anxiety and central pain amplification.
TRPV1 and TRPV2 → modulate inflammatory and neuropathic pain.
GABA and glycine → promote relaxation and inhibit nociceptive transmission.
μ and δ opioid receptors → natural action on the body's endogenous pain system.
CB1 and CB2 → neurochemical rebalancing and reduction of inflammation.

✅ The result is a gradual and stable improvement, without side effects, tolerance, or addiction.

📌 In summary: CBD isolate offers a safe, customizable, and more effective long-term option, especially for those seeking real relief without the risks.

Conclusion

The relationship between CBD and chronic pain is complex and deserves a multidisciplinary approach. While THC presents clinical limitations and risks, CBD isolate emerges as a valuable resource in pain therapy.

Discover how CBD Isolate can help with various conditions

👉 Keep following our blog: in our next articles, we will talk about all the conditions that can be supported by CBD isolate.

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