
Cannabis withdrawal can cause a variety of symptoms, including muscle twitching. While the effects of cannabis are desirable for some, such as feeling relaxed and happy, others may experience unsettling side effects, including muscle tension, twitching, or cramping. This phenomenon, known as weed muscle spasms, has puzzled users, with some experiencing these symptoms during cannabis withdrawal. Research suggests that marijuana interacts with cannabinoid receptors in the brain, which may influence muscle spasticity. Furthermore, THC, a compound in cannabis, may contribute to muscle twitching, especially during withdrawal, as the body's receptors adapt to regular cannabis intake.
| Characteristics | Values |
|---|---|
| Muscle Twitching Cause | Cannabis withdrawal, overdose, or excessive THC intake |
| Cannabis Withdrawal Syndrome | Cravings, sleep difficulties, decreased appetite, restlessness, depressed mood, aggression, irritability, nausea, sweating, headache, stomach pain, strange dreams, increased anger, shakiness |
| Treatment | CBD products, light physical activity, staying hydrated, relaxation techniques, rest |
| Prevention | Starting with low THC doses, incorporating CBD, avoiding co-consumption of stimulants, consuming regulated products |
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What You'll Learn

Cannabis withdrawal syndrome (CWS)
CWS symptoms are typically mild and may include agitation, insomnia, and physical discomfort such as nausea and stomach pain. Some people also experience muscle twitching, tremors, or spasms during withdrawal. This is thought to be caused by the body's CB1 receptors in the brain adapting to regular cannabis intake. When someone stops using cannabis, this dependence is reversed, and the brain has to rewire and regrow itself.
The severity of CWS depends on several factors, including the amount of cannabis used before cessation, gender, and environmental factors. Women tend to experience stronger symptoms, including more physical discomfort. CWS can also be similar to caffeine withdrawal, with symptoms such as droopy eyelids (ptosis), shaking, and agitation.
To ease CWS symptoms, certain treatments can be used. Antidepressants such as mirtazapine (Remeron) can help with insomnia, while other antidepressants like venlafaxine (Effexor) may worsen CWS symptoms. Canadian researchers have found that high fixed doses of Sativex, a 1:1 THC:CBD pharmaceutical, significantly reduced cannabis withdrawal during abstinence. Additionally, consuming CBD products may help manage twitching and reduce anxiety, which can indirectly alleviate weed muscle spasms. Light physical activity, such as walking and stretching, can also help free tension and stimulate blood flow to the muscles.
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THC and muscle twitching
THC, the primary intoxicating compound in cannabis, can induce muscle twitching or tremors, scientifically known as myoclonus. This phenomenon is characterised by involuntary muscle contractions or spasms and is often associated with cannabis use. The severity and duration of these twitches depend on various factors, including the individual's tolerance, the potency of the cannabis, and the method of consumption. While muscle twitching due to THC consumption is typically temporary and harmless, it can cause significant discomfort and may indicate broader issues related to substance use.
THC's impact on muscle twitching can be attributed to its effects on the nervous system and the endocannabinoid system. THC stimulates the nervous system, leading to overactivation of the body and resulting in involuntary muscle contractions. Additionally, THC influences the endocannabinoid system, which plays a crucial role in regulating muscle movement and coordination. This disruption in regulation can manifest as muscle twitches or spasms.
Several factors contribute to THC-induced muscle twitching:
- Dehydration: Cannabis use can lead to dry mouth and dehydration, which are known to cause muscle cramps and twitching. Staying hydrated before, during, and after THC consumption is essential to prevent or reduce spasms.
- Electrolyte Imbalance: Changes in diet or fluid intake while under the influence of THC can affect electrolyte levels, triggering muscle spasms.
- Anxiety and Stress: Stress and anxiety are known to trigger or exacerbate muscle twitching when high. Relaxation techniques such as deep breathing, meditation, and progressive muscle relaxation can help manage these factors and reduce muscle tension.
- Low Blood Sugar: Insufficient food intake before consuming cannabis can result in low blood sugar levels, contributing to weed shakes or involuntary tremors.
- THC-induced Hypothermia: A rare side effect of THC consumption is hypothermia, where the body's temperature drops, potentially causing muscles to contract and tremble.
While THC can induce muscle twitching, it is important to note that CBD, another compound in cannabis, may counteract these effects. CBD has muscle relaxant properties and can reduce anxiety, indirectly helping to manage twitching. Additionally, light physical activity, such as walking and stretching, can alleviate weed-induced muscle spasms by gently stimulating blood flow to the muscles.
In summary, THC's impact on muscle twitching is multifaceted and influenced by various physiological and psychological factors. Understanding these factors and implementing appropriate management strategies can help minimise the occurrence and severity of THC-induced muscle twitching.
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Muscle relaxants and CBD
While cannabis has many effects, some consumers report experiencing muscle tension, twitching, or cramping after using it. This may be due to the body's CB1 receptors in the brain adapting to regular cannabis intake, and the subsequent reversal of dependence when one stops using it. This is known as cannabis withdrawal syndrome (CWS).
CBD, or cannabidiol, is a type of cannabinoid found naturally in cannabis plants. Unlike THC, another type of cannabinoid, CBD does not cause the "high" feeling associated with cannabis. CBD has been shown to aid in muscle relaxation and the reduction of spasticity. It does so by slowing down the flow of chemical messengers and boosting the body's supply of endocannabinoids.
Research on CBD products for pain management has been promising. CBD can offer an alternative for people with chronic pain who rely on medications such as opioids, which can be habit-forming and cause more side effects. A 2018 review of studies conducted between 1975 and March 2018 concluded that CBD was effective in overall pain management and did not cause negative side effects. Additionally, a 2015 study in Neurotherapeutics noted that "current evidence indicates CBD has considerable potential as a treatment for multiple anxiety disorders, with a need for further study of chronic and therapeutic effects in relevant clinical populations."
CBD creams and topicals are the most recommended form of consumption for muscle relaxation. It is important to note that CBD oil is not legal in all areas and may react with other medications, so it is best to speak with a doctor before trying it.
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Muscle spasms and tremors
While cannabis is often used to relieve muscle tension and spasms, in cases of overdose or withdrawal, people may experience muscle spasms and tremors. More than half of people who use medical marijuana products to ease pain experience withdrawal symptoms, including muscle spasms, when they are between uses. This phenomenon is called Cannabis Withdrawal Syndrome (CWS) and is caused by the body's CB1 receptors in the brain adapting to regular cannabis intake.
Several factors contribute to muscle twitching and spasms while high or during withdrawal. One factor is dehydration, as cannabis can lead to dry mouth and dehydration, which may cause muscle cramps or twitching. Staying hydrated can help mitigate these effects. Another factor is electrolyte imbalance, as changes in diet or fluid intake while high can affect electrolyte levels, leading to muscle spasms. Additionally, the stimulating effects of THC on the nervous system can result in involuntary muscle contractions.
To manage muscle spasms and tremors caused by cannabis use or withdrawal, staying hydrated by drinking water can help alleviate dehydration and reduce muscle twitches. Engaging in light physical activity, such as walking and stretching, can also help free tension and improve blood flow to the muscles. Relaxation techniques, such as deep breathing, can help ease muscle tension, and rest can allow the body to recover from muscle twitching. Consuming CBD products may also help reduce anxiety and indirectly manage twitching.
While most weed-induced shaking is temporary and benign, certain situations warrant medical attention. For example, if spasms persist for an extended period or recur frequently, it may indicate an underlying issue that requires professional evaluation. Additionally, if muscle twitching or other side effects are causing concern, it may be an indication of broader issues related to substance use, and seeking professional help may be beneficial.
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Anxiety and muscle twitching
Muscle twitching is a common symptom of anxiety. It can be frightening, especially for people whose anxiety stems from health concerns. Muscle twitching can affect any muscle in the body and can last for a few seconds or much longer. In some people, anxiety twitching can happen off and on indefinitely. It often gets worse when trying to sleep, but usually stops while sleeping. It also tends to worsen as anxiety increases.
Anxiety causes the nervous system to release neurotransmitters, which are chemicals that send messages between neurons or between neurons and muscles. Some neurotransmitters tell the muscles to move, and when a person is anxious, these neurotransmitters may be released even when there is no clear reason for it. Muscle twitching can also be a symptom of hyperventilation, which can be caused by anxiety.
Ongoing feelings of stress and anxiety can change the way the body functions. When we experience high levels of stress and anxiety, our nerve energy changes. Adrenaline surges send more energy to the muscles, and they may react to this change by contracting. High levels of stress activate the fight, flight, or freeze response, which causes many body-wide changes that prepare the body for emergency action. This response can stress the body when it occurs too frequently.
Anxiety twitching can be treated by addressing the underlying anxiety. This may involve therapy or other mental health support. There are also several self-help techniques that can be used to manage anxiety twitching. These include:
- Getting regular exercise
- Drinking water
- Getting 7-8 hours of sleep per night
- Reducing stress
- Avoiding drugs, alcohol, and caffeine
- Eating a healthy diet with the right amount of salt and micronutrients
- Trying relaxation methods such as progressive muscle relaxation
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Frequently asked questions
Yes, muscle twitching is a common symptom of cannabis withdrawal. This is known as "weed muscle spasms" and can be caused by the body's CB1 receptors in the brain adapting to regular cannabis intake.
Other symptoms of cannabis withdrawal include anxiety, sleep difficulties, decreased appetite, restlessness, depressed mood, aggression, irritability, nausea, sweating, headache, stomach pain, strange dreams, and increased anger.
To manage muscle twitching caused by cannabis withdrawal, it is recommended to stay hydrated, engage in relaxation techniques and deep breathing, and get plenty of rest. Light physical activity such as walking and stretching can also help to alleviate muscle tension.
The duration of muscle twitching from cannabis withdrawal varies from person to person. Some people report that it lasted from 3 months to 18 months or more. It is important to seek medical advice if you are concerned about any symptoms you are experiencing.










































