Does citalopram cause eye twitching? (3+ Factors)

In this article, we will discuss the potential link between eye twitching and citalopram, we will also discuss potential factors contributing to it, and steps to take if you experience eye twitching when taking citalopram.

Does citalopram cause eye twitching?

Yes, citalopram might lead to eye twitching. However, it is not a predominant side effect.

Some evidence suggests that selective serotonin reuptake inhibitors (SSRIs) like citalopram can have neurological effects that could potentially manifest as eye twitching. Eye twitching (myokymia) is characterized by repetitive, involuntary spasms of the eyelid muscles(1,2).

What does research suggest?

The connection between citalopram and eye twitching has been noted in some studies and case reports.

Post-marketing surveillance data collected after citalopram’s release into the market indicated instances where users reported involuntary muscular movements.

Eye twitching, being an involuntary muscle movement, can fall under this broader category. These reports are useful for identifying rare side effects not caught in initial clinical trials(3).

Neurological Impacts of citalopram, as with other SSRIs function by inhibiting the reuptake of serotonin in the brain. Elevated serotonin levels can influence various neural pathways, potentially leading to neuromuscular symptoms.

Studies have shown that serotonin, although primarily known for mood regulation, also plays a role in motor functions and reflexes, which could theoretically result in effects like eye twitching(4).

Factors influencing citalopram-induced eye twitching

Certain factors might increase the likelihood of experiencing eye twitching when using citalopram, these factors include:

Concurrent Medications – Combining citalopram with other medications that impact the nervous system can potentially lead to adverse effects.

For instance, some drugs may enhance the activity of neurotransmitters, potentially leading to overstimulation. Others might inhibit the breakdown of citalopram, leading to increased levels in the bloodstream.

Dosage – The amount of citalopram taken plays a crucial role in its effect on the body. While citalopram is effective in treating depression and anxiety at prescribed dosages, increasing the dose might result in heightened side effects.

One of these side effects, although not very common, is eye twitching or myokymia. This involuntary movement can be discomforting, and while it’s usually harmless, persistent twitching might need medical attention.

Individual Sensitivity – Everyone’s body responds differently to medications due to a combination of genetics, environment, and overall health. Some individuals might naturally have a heightened sensitivity to the effects of citalopram and other SSRIs like sertraline – which can also cause similar side effects.

These individuals could experience neurological side effects even at lower doses. Factors like metabolism rate, liver function, and concurrent health conditions can influence how a person processes and reacts to the drug. It’s essential for patients to be observant of any unusual symptoms or side effects and report them to their healthcare provider.

What to do if citalopram causes eye twitching?

If an individual believes citalopram is causing eye twitching, the following steps should be considered:

Contact your doctor – It’s imperative to discuss any potential side effects with a healthcare provider. They can evaluate the symptoms in the context of the individual’s overall health and medication regimen.

The clinician might adjust the dosage, switch to a different medication, or recommend additional tests to rule out other causes.

Monitor other potential causes – External factors such as stress, fatigue, or caffeine consumption can also induce eye twitching. Keeping a daily log of activities, food, and beverage intake, and stress levels can provide insights on whether the twitching correlates with specific triggers.

Don’t stop citalopram abruptly – SSRIs like citalopram have known withdrawal symptoms when discontinued suddenly.

If one wishes to stop or believes the medication is causing side effects, it’s crucial to consult a healthcare provider. They can provide a tapering schedule to minimize potential withdrawal or side effects(6).

Conclusion

In conclusion, there is some evidence suggesting a potential link between citalopram and eye twitching, although it is not a widely reported side effect. Monitoring for any side effects and regularly consulting with a healthcare provider is vital when using citalopram or any medication.

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References

1.-

Milne RJ, Goa KL. Citalopram. A review of its pharmacodynamic and pharmacokinetic properties, and therapeutic potential in depressive illness. Drugs. 1991 Mar;41(3):450-77. doi: 10.2165/00003495-199141030-00008. PMID: 1711447.

2.-

Lee SY, Lai SC. Clinical and Electrophysiological Analysis of Chronic Eyelid Twitching. Acta Neurol Taiwan. 2017 Dec 15;26(4):177-183. PMID: 30315563.

3.-

Edinoff AN, Akuly HA, Hanna TA, Ochoa CO, Patti SJ, Ghaffar YA, Kaye AD, Viswanath O, Urits I, Boyer AG, et al. Selective Serotonin Reuptake Inhibitors and Adverse Effects: A Narrative Review. Neurology International. 2021; 13(3):387-401. https://doi.org/10.3390/neurolint13030038

4.-

Basheikh MA. Reversible Hemifacial Spasm after Starting Escitalopram. Case Rep Neurol. 2020 Mar 6;12(1):103-106. doi: 10.1159/000506326. PMID: 32308604; PMCID: PMC7154230.

5.-

Wakakura M, Tsubouchi T, Inouye J. Etizolam and benzodiazepine induced blepharospasm. J Neurol Neurosurg Psychiatry. 2004 Mar;75(3):506-7. doi: 10.1136/jnnp.2003.019869. PMID: 14966178; PMCID: PMC1738986.

6.-

Zivin K, Pfeiffer PN, Bohnert AS, Ganoczy D, Blow FC, Nallamothu BK, Kales HC. Evaluation of the FDA warning against prescribing citalopram at doses exceeding 40 mg. Am J Psychiatry. 2013 Jun;170(6):642-50. doi: 10.1176/appi.ajp.2013.12030408. PMID: 23640689.

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