
Antidepressants are prescription medications that help treat mental health conditions such as depression and anxiety. They are one of the most commonly prescribed medications in the United States and are also used to treat other conditions such as OCD. While antidepressants are designed to help improve mental health, they can sometimes cause side effects, including muscle pain or myalgia. This paragraph will explore the potential side effect of muscle pain caused by antidepressants and the implications for patients.
| Characteristics | Values |
|---|---|
| Muscle pain | Myalgia induced by antidepressants has been reported. SSRIs and SNRIs are among the antidepressants that can cause muscle pain. |
| Treatment | Muscle pain caused by antidepressants can be relieved by anti-inflammatory drugs, massages, hot water baths, and posture changes. |
| Other side effects | Nausea, weight gain, sleep issues, lower alcohol tolerance, bleeding, lower sodium levels, skin rashes, headaches, joint pain, stomach upset, diarrhea, insomnia, decreased sex drive, dizziness, loss of coordination, fatigue, blurred vision, vivid dreams, flu-like symptoms, irritability, anxiety, crying spells, increased risk of developing type 2 diabetes, and withdrawal symptoms. |
| Risk factors | Age, genes, and other medications. |
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What You'll Learn

SSRIs, SNRIs, doxepin, trazodone, and mirtazapine are linked to myalgia
Antidepressants are a commonly used medication, with consumption rising dramatically over the last 20 years, particularly in Western countries. While they can be very beneficial, they also have a range of side effects, and it is important to be aware of these when considering medication. One such side effect is myalgia, or muscle pain, which has been linked to the use of SSRIs, SNRIs, doxepin, trazodone, and mirtazapine.
SSRIs, or selective serotonin reuptake inhibitors, are a commonly prescribed type of antidepressant. They are generally safer than tricyclic antidepressants for older people, as they do not affect heart rhythms and rarely cause dizziness. However, they do have side effects, which can include insomnia, skin rashes, headaches, joint and muscle pain, stomach upset, nausea, and diarrhea. These side effects are usually mild and temporary. SSRIs can also cause a reduced blood clotting capacity, which can increase the risk of internal bleeding, especially when combined with other medications like aspirin or NSAIDs.
SNRIs, or serotonin-norepinephrine reuptake inhibitors, are another type of antidepressant that has been linked to myalgia. While less commonly prescribed than SSRIs, they are still used by many people. Like SSRIs, they can also cause a range of side effects, including nausea, weight gain, sleep issues, and sexual dysfunction.
Doxepin is a tricyclic antidepressant that has been associated with myalgia. It is also known to interact with other medications, which can increase the risk of side effects. Trazodone, another heterocyclic antidepressant, has also been linked to myalgia. It is often used as a comparator drug in trials of other antidepressants, such as mirtazapine.
Mirtazapine is an antidepressant that has been the subject of some controversy due to its profile of adverse events. While it has been found to be more effective than some SSRIs, such as fluoxetine, and has a faster onset of action, it has also been linked to side effects such as myalgia. The intensity of the myalgia has been found to correlate with the dosage of mirtazapine, and discontinuation of the medication has been found to rapidly diminish this adverse effect.
In conclusion, SSRIs, SNRIs, doxepin, trazodone, and mirtazapine have all been linked to myalgia, or muscle pain. It is important to be aware of this potential side effect when considering or taking these medications and to consult a doctor if any adverse effects are experienced. While myalgia may be a troublesome side effect, it is important to remember that antidepressants can also be very beneficial for many people and that side effects can often be managed or diminished.
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Muscle pain may be caused by hyponatraemia due to antidepressants
Antidepressants are a common medication, but they can have side effects. One such side effect is hyponatraemia, which is when serum sodium levels drop below 135 mmol/L. This can pose serious health risks, especially in older adults taking antidepressants. Research shows that selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) have the highest risk of causing hyponatraemia. This is believed to be related to serotonin-induced secretion of the antidiuretic hormone.
Hyponatraemia typically manifests within two to four weeks of starting or increasing the dose of an antidepressant. Some patients may experience no symptoms, while others may exhibit nausea, dizziness, vomiting, and headaches. Chronic mild hyponatraemia can lead to gait disturbances, muscle weakness, or cognitive impairment, and an increased risk of falls. In severe cases, hyponatraemia can cause delirium, seizure, or even death.
It is important to be aware of this potential side effect, especially for older patients who are more likely to experience it. If hyponatraemia is suspected, the offending drug should be discontinued, fluid intake should be limited to 1-1.5 litres per day, and sodium levels should be monitored. Hyponatraemia will generally resolve within two weeks of stopping the medication.
In addition to hyponatraemia, antidepressants have also been linked to muscle pain or myalgia. This has been observed with various antidepressants, including SSRIs, SNRIs, doxepin, trazodone, and mirtazapine. The intensity of the muscle pain has been found to correlate with the dosage of certain medications, and discontinuing the medication can provide rapid relief from this adverse effect.
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SSRIs can increase the risk of internal bleeding
Antidepressants, particularly SSRIs, can affect platelet clotting and raise your risk of internal bleeding. This is due to the effect of SSRIs inhibiting serotonin uptake in platelets, which results in a decreased concentration of serotonin in platelets. This, in turn, reduces blood clotting capacity and increases the risk of bleeding. The odds ratio for bleeding associated with SSRI use alone ranges from 1.7 to 2.36, indicating an increased risk.
The risk of bleeding is further elevated when SSRIs are used concurrently with other medications, such as NSAIDs (non-steroidal anti-inflammatory drugs), aspirin, or anticoagulants. In particular, the combination of SSRIs and NSAIDs has been associated with an increased risk of upper gastrointestinal (GI) bleeding. This is because NSAIDs also predispose patients to upper GI bleeding, and the concurrent use of SSRIs can amplify this risk. The odds ratio for bleeding when using both SSRIs and NSAIDs increases to 6.33.
Individuals taking SSRIs who are older adults, have a history of gastrointestinal bleeds, or are taking other medications that increase the risk of bleeding, such as antiplatelet medications, are at a higher risk of internal bleeding. It is important for patients taking SSRIs to be monitored closely, especially if they have any of these risk factors. Additionally, acid-suppressing medications, such as proton pump inhibitors (PPIs), can be considered to mitigate the risk of excessive gastric acid secretion caused by SSRIs.
While SSRIs can increase the risk of internal bleeding, it is important to note that the overall risk is relatively low. The odds ratio of 1.7 to 2.36 for bleeding associated with SSRI use alone indicates that the number needed to harm (NNT) is 411. This means that out of 411 people taking SSRIs, one person may experience harm in the form of bleeding. However, the risk should still be carefully considered and managed by healthcare professionals.
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Antidepressants can cause withdrawal symptoms
Antidepressants can cause muscle pain, known as myalgia, as well as insomnia, skin rashes, headaches, joint pain, stomach upset, nausea, or diarrhea. These side effects are usually temporary and mild. However, it is important to note that antidepressants can also cause withdrawal symptoms if they are stopped abruptly or even gradually. This is known as Antidepressant Discontinuation Syndrome (ADS) or "antidepressant withdrawal," and it can cause a variety of unpleasant symptoms.
The symptoms of ADS typically include insomnia, nausea, dizziness, fatigue, flu-like symptoms, headache, achiness, and sweating. These symptoms usually last less than two months and are not physically harmful, but they can be very unpleasant. In some cases, ADS may also cause the original condition, such as depression or anxiety, to return or worsen. It is important to speak to a healthcare provider before stopping or changing the dosage of an antidepressant to prevent ADS and manage any withdrawal symptoms.
The risk of experiencing ADS varies from person to person, and it is more likely to occur when antidepressants are stopped suddenly rather than gradually tapered off under medical supervision. Studies have shown that anywhere from 27% to 86% of people who stop taking antidepressants, either on their own or under medical supervision, experience ADS. The symptoms typically begin within two to four days of stopping the medication and can last for several weeks.
The specific withdrawal effects of different antidepressants can be found in the British National Formulary (BNF) A-Z list of drugs, and healthcare providers can provide guidance on managing these symptoms. It is important to remember that the decision to continue or stop taking medication is ultimately the patient's choice, and they have the right to change their mind. There are also alternatives to antidepressants for managing mental health, and healthcare providers can advise on the best approach for each individual.
In summary, antidepressants can cause muscle pain and other side effects, and they may also lead to withdrawal symptoms if not properly tapered off under medical supervision. ADS can cause a range of unpleasant symptoms and can worsen the original condition, so it is important to seek medical advice before making any changes to medication.
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SSRIs are safer for older people than tricyclic antidepressants
Antidepressants can cause muscle pain, also known as myalgia. Myalgia induced by antidepressants has been observed in patients taking doxepin, trazodone, mirtazapine, SSRIs, and SNRIs. In one case, a patient taking mirtazapine reported soreness in their calf muscles, which intensified over time, and was accompanied by soreness in the bilateral hips.
Selective serotonin reuptake inhibitors (SSRIs) are considered "second-generation" antidepressants, while tricyclic antidepressants (TCAs) are considered "first-generation". SSRIs are generally safer than tricyclic antidepressants for older people due to the following reasons:
- SSRIs do not disturb heart rhythms, whereas tricyclic antidepressants can cause cardiovascular complications in people with pre-existing ischemic heart disease.
- SSRIs rarely cause dizziness that results in falls, whereas tricyclic antidepressants can cause orthostatic hypotension, which may increase the risk of falling.
- SSRIs are less likely to cause overdose and toxicity than tricyclic antidepressants.
- SSRIs are less likely to cause adverse side effects than tricyclic antidepressants. Common side effects of tricyclic antidepressants include dry mouth, urinary retention, blurred vision, weight gain, constipation, and increased appetite.
- SSRIs are generally safer in cases of overdose. Tricyclic antidepressants pose a high risk of death in overdose, especially amitriptyline and dothiepin.
While SSRIs are generally safer for older adults, it is important to note that older people are at a greater risk of developing adverse reactions to any medication, including antidepressants, due to factors such as concurrent illnesses, consumption of other medications, and altered drug kinetics. Therefore, it is crucial to consult a healthcare professional before starting any antidepressant medication.
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Frequently asked questions
Yes, muscle pain is a known side effect of antidepressants. This is known as myalgia, which can be relieved through anti-inflammatory drugs, massages, hot water baths, and posture changes.
Other common side effects of antidepressants include nausea, weight gain, sleep issues, skin rashes, headaches, stomach upset, and diarrhea.
Yes, in rare cases, some people experience suicidal thoughts and self-harm ideation when they first take antidepressants. Young people under 25 seem to be particularly at risk. Antidepressants can also cause a severe drop in sodium (salt) levels, known as hyponatremia, which can be potentially dangerous.
It is important to continue taking antidepressants as prescribed, even if you experience mild side effects. Most side effects should improve within a few weeks as your body adjusts to the medication. However, if the side effects are bothersome or persist, talk to your doctor or healthcare provider. They may recommend adjusting the dosage or switching to a different antidepressant.
It is not recommended to stop taking antidepressants abruptly without consulting your doctor first. Suddenly discontinuing antidepressants can lead to withdrawal symptoms, including dizziness, loss of coordination, fatigue, tingling, blurred vision, insomnia, and vivid dreams. Your doctor will help you gradually taper off the medication to minimize withdrawal symptoms.











































