Escitalopram is an antidepressant that is mainly used to treat depression. Side effects such as nausea, dry mouth, lack of appetite, and insomnia are mainly experienced. Escitalopram is the single -S-enantiomer of the dicyclic hydrogenated phthalide derivative citalopram. The mechanism of escitalopram’s antidepressant disease action may be related to the inhibition of the uptake of 5-HT by central nervous system neurons, thereby enhancing the function of central 5-hydroxytryptaminergic nerves. It is mainly used clinically for the treatment of depressive disorders and for the treatment of panic disorder with or without agoraphobia. Adverse reactions such as dizziness, sensory disturbances, sleep disturbances, agitation and anxiety, nausea, vomiting, tremor, confusion, sweating, headache, diarrhea, palpitations, emotional lability, irritability, and visual disturbances are common with the use of this drug. It is forbidden to use the drug if you are allergic to the active ingredient or any of the excipients of the product. The drug is prohibited in combination with non-selective, irreversible monoamine oxidase inhibitors (MAOI). The drug is a prescription drug and should be used in strict compliance with the doctor’s instructions.