Escitalopram
Escitalopram is a selective serotonin reuptake inhibitor. It prevents serotonin from being taken back up into the nerve cell that released it, increasing serotonergic signalling in a way that gradually alters mood and anxiety processing. It is prescribed for depression and anxiety disorders.
Food does not matter, and it is generally taken in the morning; the benefit accumulates over weeks rather than days. It can lengthen the QT interval on the ECG, which matters more alongside other drugs that do the same or when heart rhythm is already a concern, and it can lower blood sodium, so that value is worth monitoring. Ibuprofen and acetylsalicylic acid together with an SSRI increase bleeding risk from the stomach lining, and sumatriptan adds a second serotonergic drug. It should not be stopped abruptly.
Fainting, palpitations or a sensation of the heart stumbling may reflect a rhythm effect and should be assessed promptly. Confusion, weakness, nausea or unsteadiness can signal low sodium, and bleeding from the gut or agitation with fever and tremor after a new serotonergic drug are also reasons to see a doctor.
Reference information, not medical advice. Discuss any change with your doctor.