Antidepressants

Antidepressants gathers medicines used for low mood and anxiety, with some also helping obsessive-compulsive disorder, panic and neuropathic pain. Low mood and anxiety are treated by escitalopram 5mg, 10mg and 20mg, sertraline 25mg, 50mg and 100mg, fluoxetine 10mg, 20mg and 60mg capsules, and venlafaxine 37.5mg and 75mg. Branded generics include generic Lexapro 5mg, 10mg and 20mg and generic Cymbalta 20mg, 30mg, 40mg and 60mg for major depressive disorder, chronic pain and generalised anxiety. Obsessive-compulsive disorder is covered by clomipramine 10mg, 25mg and 50mg and generic Luvox 50mg and 100mg. Other options include mirtazapine 7.5mg, 15mg and 30mg and duloxetine 20mg, 30mg, 40mg and 60mg for depression and anxiety. Orders are sent in plain, discreet packaging, with 24/7 support in English and Cantonese.

Understanding Antidepressants

Antidepressants are a group of medicines that influence brain chemistry to support emotional balance. They are commonly prescribed when depressive disorders affect daily functioning, mood stability, or sleep quality. Modern formulations include selective serotonin-reuptake inhibitors (SSRIs) and serotonin-norepinephrine-reuptake inhibitors (SNRIs), among other classes.

In Hong Kong, these agents are part of the public and private health-care services that address mental-health conditions, anxiety-related symptoms, and, in some cases, neuropathic pain.

Typical usage involves a period of several weeks to achieve noticeable improvement, after which the medication may be continued for maintenance. The choice of a specific drug depends on clinical assessment, patient history, and the medication’s safety profile.

Medications such as Escitalopram, Sertraline, and Venlafaxine illustrate the variety of agents that belong to this therapeutic area, while many others share similar mechanisms and clinical goals.

Conditions Treated by Antidepressants

• Major depressive disorder - persistent low mood, loss of interest, and reduced energy that interfere with everyday life.
• Generalised anxiety disorder - excessive worry and tension that are difficult to control.
• Social anxiety disorder - intense fear of social situations that leads to avoidance.
• Obsessive-compulsive disorder - intrusive thoughts and repetitive behaviours that cause distress.
• Post-traumatic stress disorder - lingering fear and flashbacks following a traumatic event.
• Chronic neuropathic pain - nerve-related pain that may respond to certain antidepressants.

These conditions often coexist, and treating one can alleviate symptoms of another, supporting overall functional recovery.

Related Medication Categories

• Anxiolytics - primarily target anxiety without the broader mood-stabilising effects of antidepressants.
• Mood stabilisers - used for bipolar disorder to prevent mood swings, distinct from the depressive focus of antidepressants.
• Analgesics for neuropathic pain - include anticonvulsants that address nerve pain through different pathways.

Each category addresses overlapping symptoms but differs in primary therapeutic intent and pharmacological action.

Medication Options for Antidepressants

Selective serotonin-reuptake inhibitors (SSRIs)

SSRIs increase serotonin levels by blocking its re-absorption.

• Escitalopram and Sertraline are widely used for depression and anxiety.
• Fluoxetine and Paroxetine offer once-daily dosing options.

Serotonin-norepinephrine-reuptake inhibitors (SNRIs)

SNRIs raise both serotonin and norepinephrine activity.

• Venlafaxine and Duloxetine are common choices for mood disorders and neuropathic pain.

Tricyclic antidepressants (TCAs)

TCAs affect several neurotransmitters and are older agents in the class.

• Amitriptyline, Nortriptyline, and Doxepin are often reserved for chronic pain or treatment-resistant depression.

Atypical antidepressants

These drugs have unique mechanisms beyond serotonin or norepinephrine re-uptake inhibition.

• Bupropion influences dopamine and norepinephrine pathways.
• Mirtazapine works through noradrenergic and specific serotonergic receptors.

Other agents

• Trazodone is sometimes employed for sleep-related disturbances linked to depression.
• Vortioxetine and Vilazodone represent newer options with mixed pharmacological profiles.

What to Know About Antidepressants

Antidepressants aim to restore the balance of neurotransmitters that regulate mood, anxiety, and pain perception. Treatment typically begins with a low dose that is gradually increased to a therapeutic level, a process managed by qualified clinicians.

Most agents are taken orally, once or twice daily, and may require several weeks before therapeutic effects become evident. Long-term use is common when the underlying condition is chronic, while some patients transition off medication after sustained improvement.

Understanding the distinction between acute treatment (initial symptom relief) and maintenance therapy (preventing relapse) helps patients set realistic expectations about the course of care.

Common Users

• Adults experiencing persistent low mood that limits work, study, or social activities.
• Individuals with anxiety that interferes with daily routines, such as public speaking or commuting.
• Patients with chronic neuropathic pain who have not responded adequately to standard analgesics.
• Older adults whose depressive symptoms may coexist with other health conditions, requiring careful medication selection.

These scenarios reflect typical patterns observed in Hong Kong’s healthcare settings, where mental-health services integrate both public hospitals and private practitioners.

Common Terms

Selective serotonin-reuptake inhibitor (SSRI): A drug that blocks the re-absorption of serotonin, increasing its availability in the brain.

Serotonin-norepinephrine-reuptake inhibitor (SNRI): A medication that inhibits the re-uptake of both serotonin and norepinephrine, enhancing mood-regulating signals.

Tricyclic antidepressant (TCA): An older class of antidepressants that affect multiple neurotransmitters and are often used when newer agents are unsuitable.

Atypical antidepressant: An antidepressant with a mechanism that does not fit the classic SSRI or SNRI profile.

Therapeutic dose: The amount of medication that has been shown to produce the desired clinical effect in most patients.