Dominic Stone
Muscle spasms can be caused by a variety of factors, including dehydration, caffeine, and certain medications. In terms of drugs, both therapeutic and illicit substances can cause movement disorders, with antipsychotics and antiemetics being the most common culprits. Additionally, drugs like stimulants, opiates, alcohol, and other illicit drugs can compromise the skeletal system, leading to issues such as osteoporosis and arthritis. Furthermore, statins, a group of cholesterol-lowering medications, are known to cause muscle pain and, in rare cases, a severe muscle condition called rhabdomyolysis. Other medications linked to muscle issues include Lyrica, fluoroquinolone antibiotics, and fibrates. It is important to consult a doctor when experiencing muscle spasms or pain to determine the appropriate course of action.
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What You'll Learn
Stimulants like cocaine, methamphetamine, and ecstasy
Several factors can contribute to muscle spasms, including dehydration, caffeine, stress, and certain medications. While muscle spasms can have various causes, drug abuse and addiction can also play a significant role. Stimulants like cocaine, methamphetamine, and ecstasy are among the substances that can negatively impact the muscular system and cause movement disorders.
Stimulant drugs such as cocaine and methamphetamine are powerful central nervous system stimulants that can affect the heart and compromise the functioning of the cardiovascular system. Chronic use of these stimulants can produce brain damage, impacting areas of the brain that control movement. This damage can lead to issues with voluntary movements, increasing the risk of accidents and further damage to the musculoskeletal system.
Additionally, these stimulants can increase the risk of stroke, which can result in muscle weakness, loss of movement, or paralysis. The resulting muscle atrophy can cause significant challenges for individuals experiencing these effects. Furthermore, stimulant drugs can place a significant burden on the heart, leading to deterioration of the heart muscle, high blood pressure, and heartbeat irregularities.
Ecstasy, also known as MDMA, is another stimulant that can cause movement disorders. It has been associated with acute reactions in users, including a case where an individual experienced an inability to fully open their mouth due to visible forceful mouth closure. Ecstasy blocks dopamine reuptake, increasing dopaminergic drive, and can lead to parkinsonism and a syndrome similar to serotonin syndrome.
It is important to recognize and address drug-induced movement disorders promptly to prevent potential life-threatening consequences. Discontinuing the use of the offending drug is crucial, and in some cases, medical intervention with anticholinergic therapy or other pharmacological treatments may be necessary.
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Alcohol and drug damage to the brain
Illicit drugs, such as stimulants, opiates, and cocaine, can also cause substantial damage to the brain. These substances can increase the risk of stroke, compromise the vascular system in the brain, and lead to issues like paralysis, muscle weakness, or loss of function in limbs. Additionally, stimulant drugs can directly damage important areas of the brain, resulting in movement problems. For instance, cocaine and methamphetamine can affect the central nervous system, leading to issues with movement and coordination.
Amphetamines, including methamphetamine, can cause long-term psychosis, hallucinations, paranoia, and changes in brain structure and function. They can also accelerate age-related decline in dopaminergic function, leading to increased distractibility, aggressive behaviour, and mood disturbances. Similarly, cannabis and synthetic cannabinoids can induce adverse effects, including depression, unease, delusions, and deficits in attention, memory, and sense of time. Adolescent marijuana use is particularly harmful, as it can lead to long-term neurocognitive dysfunction and impaired brain development.
Furthermore, substance use can result in neurological complications, such as traumatic brain injury (TBI), stroke, and Wernicke-Korsakoff syndrome. Alcohol intoxication is a significant contributor to TBI, and repeated TBIs can lead to severe long-term damage and an increased risk of permanent disability. Substance use can also cause mild brain atrophy (brain shrinkage) and changes to white matter, which can have lasting impacts on cognitive and behavioural functions.
The good news is that the brain has a remarkable ability to adapt and repair itself, even after prolonged substance use and addiction. This capacity for neuroplasticity allows the brain to modify, grow, and reorganise itself. However, brain recovery takes time and patience, and the specific treatment options depend on the substance and the extent of the damage. In some cases, AOD-related brain damage may be irreversible.
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Antipsychotics and antiemetics
The movement disorders associated with antipsychotics can be disabling and distressing, resulting in behavioural disturbances, non-adherence to treatment, and exacerbation of psychosis. They can also cause akathisia, which involves motor restlessness accompanied by subjective feelings of inner tension and discomfort, mainly in the limbs. This may coexist with Parkinsonian symptoms and can be distressing, impacting treatment adherence.
The treatment of choice for antipsychotic-induced movement disorders is typically to lower the dosage of the antipsychotic. However, this approach may not be feasible in many acutely ill psychiatric patients. Benzodiazepines, with their inherent anxiolytic and muscle relaxant properties, have shown therapeutic potential. Additionally, the alpha-2 agonist clonidine has been associated with efficacy, although differentiating between its therapeutic effect and sedation can be challenging. Another effective strategy is the addition of beta-adrenergic blockers, such as a modest dose of propanolol (30-80mg/day).
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Opioids and SSRIs
Opioids are a class of powerful prescription medicines that can help manage pain when other treatments are unable to provide relief. However, they also carry serious risks, including misuse, abuse, addiction, overdose, and death. Opioids can be used to treat muscle spasms, but they can also cause them. Oxycodone, for example, is a commonly prescribed opioid for muscle spasms. While it can be effective in managing pain, it carries the risk of addiction.
Opioids can interact with certain medicines that increase serotonin levels, including antidepressants and migraine medicines, leading to a serious central nervous system reaction called serotonin syndrome. Serotonin syndrome is caused by an excess of serotonin, a neurotransmitter, in the brain. Symptoms can range from mild to life-threatening and include diarrhoea, excessive sweating, agitation, tremors, high blood pressure, fever, rapid heart rate, twitching, and muscle stiffness. It is important to note that serotonin syndrome usually occurs when opioids are combined with other serotonergic medications.
Pethidine, tramadol, and dextromethorphan are opioids with a high risk of causing serotonin syndrome when used with serotonergic antidepressants. Methadone and fentanyl are considered medium-risk opioids for inducing serotonin syndrome, and their interaction with antidepressants is more likely at higher doses. On the other hand, morphine, codeine, buprenorphine, and oxycodone are not expected to interact with antidepressants to cause serotonin syndrome.
It is crucial to consult a doctor or healthcare professional before taking opioids, especially if you are also taking antidepressants or migraine medications. They can advise on the potential risks and benefits of opioid treatment and monitor for any signs or symptoms of serotonin syndrome. Additionally, it is important to be aware of the potential for physical dependency and addiction when taking opioids, even if it is prescribed by a doctor.
Selective serotonin reuptake inhibitors (SSRIs) are a type of antidepressant medication that can cause muscle spasms as a side effect. SSRIs work by increasing the levels of serotonin in the brain, which can have a positive impact on mood and emotions. However, this increase in serotonin can also lead to muscle spasms or twitching in some individuals. While SSRIs are generally considered safe and effective, it is important to be aware of potential side effects and consult a healthcare professional if you experience any adverse reactions.
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Statins and other cholesterol-lowering medications
While statins are an effective way to lower cholesterol, they can sometimes cause muscle pain and weakness. This is a known side effect, with around 5% of people in drug trials experiencing muscle aches, and up to 30% of people reporting these symptoms anecdotally. The pain usually occurs within the first few months of starting the medication or when increasing the dose. It can affect the shoulders, thighs, hips, or calves, and may be mild or severe. In rare cases, statins have been linked to rhabdomyolysis, a life-threatening condition causing serious muscle damage.
If you are experiencing statin-related muscle pain, there are several strategies you can employ. Firstly, consider adjusting your dose or switching to a different statin or cholesterol-lowering drug. Non-statin medications, such as ezetimibe, bile acid sequestrants, and PCSK9 inhibitors, may be alternatives to discuss with your doctor. Additionally, lifestyle changes, such as adopting a heart-healthy diet, increasing physical activity, and quitting smoking, can help lower cholesterol and may reduce the required dosage of statins.
It is important to note that muscle pain can also be a symptom of hypothyroidism, so getting your thyroid checked is recommended. Furthermore, intense exercise may exacerbate muscle pain, so consulting with your doctor about adjusting your medication regimen around physical activity is suggested. While most statin-related aches are not harmful, it is crucial to be vigilant and seek medical advice if needed.
Other drugs that can cause muscle spasms include certain antidepressants, epilepsy medications, and psychosis drugs, which may lead to eyelid twitching. Water pills (diuretics) can also contribute to muscle spasms by lowering potassium levels in the body. Additionally, some drugs can cause movement disorders, including antipsychotics and antiemetics, which are known to block dopamine receptors. Drug-induced parkinsonism, for example, is characterised by bradykinesia, rigidity, and postural instability. Early recognition of drug-induced movement disorders is essential to allow for prompt intervention, which may include discontinuing the offending medication.
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Frequently asked questions
Muscle spasms can be caused by various drugs, including stimulants like cocaine and methamphetamine, opiates, alcohol, antidepressants, epilepsy medication, and cholesterol-lowering medications like statins.
These drugs can have several detrimental effects on the body, including increasing the risk of stroke, compromising the skeletal system, causing dietary imbalances, and directly damaging the muscles and the brain.
Yes, muscle spasms can also be caused by dehydration, caffeine consumption, stress, and underlying medical conditions such as neuropathy or kidney issues.
