Citalopram is a selective serotonin reuptake inhibitor (SSRI) used for the management of depression and mood disorders.
Citalopram belongs to the class of medicines known as selective serotonin reuptake inhibitors (SSRIs). It is used to adjust the balance of serotonin, a natural chemical that helps regulate mood. In Hong Kong, citalopram appears in products such as Celexa and various generic tablets.
Citalopram is marketed under the brand name Celexa, which is available in several strengths (e.g., 10 mg, 20 mg, 40 mg tablets). Generic citalopram tablets are also supplied by local pharmacies and may carry the ingredient name on the label without a brand prefix. Most formulations come as oral tablets, but a liquid preparation is sometimes offered for patients who have difficulty swallowing pills. All of these products are authorised by the Hong Kong Department of Health and listed on the Pharmacy and Poisons Board database.
These conditions are recognised indications in Hong Kong, and citalopram is prescribed when a healthcare professional determines that an SSRI is appropriate for the individual.
Citalopram increases the amount of serotonin available in the brain by slowing its re-absorption into nerve cells. More serotonin means improved communication between nerve cells, which can help stabilise mood and reduce anxiety. Many people notice a gradual improvement over a few weeks, as the brain adapts to the higher serotonin levels.
Most people experience only mild, temporary effects. Typical reports include:
These sensations usually ease as the body adjusts to the medication.
Although rare, some reactions require immediate medical attention:
If any of these occur, seek urgent care at the nearest Accident & Emergency department.
People with certain health backgrounds need to discuss citalopram with a qualified professional before starting:
Citalopram can interact with other substances, potentially altering its effect or increasing side-effect risk. Key interaction groups include:
For a full list of possible interactions, refer to the individual product’s information sheet.
Store citalopram tablets in a cool, dry place away from direct sunlight and out of reach of children. The medication is usually taken once daily, but the exact schedule depends on the specific product and the prescriber’s guidance. Some patients use citalopram for a short-term episode, while others continue under medical supervision for longer periods. Always read the label that comes with your chosen product and follow the instructions provided there.
Selective serotonin reuptake inhibitor (SSRI): A type of medicine that keeps more serotonin available in the brain to help improve mood.
Serotonin: A natural chemical messenger that influences feelings of well-being, sleep, and appetite.
QT-interval: A measurement on an electrocardiogram that reflects how the heart’s electrical system resets between beats.
This article offers general educational information about citalopram as an active substance used in various medicines. Its purpose is to help patients better understand the ingredient and the conditions it is used to treat. It is not a substitute for professional medical advice or for the specific instructions provided with individual products. Medicines containing citalopram may differ in formulation, strength, and directions for use. Always refer to the labeling of your particular medication and follow the guidance of a qualified healthcare professional for complete information on proper use, dosage, and safety.
