Prescription medicines used to treat depression, anxiety disorders, OCD and some chronic pain conditions. Classes include SSRIs, SNRIs, tricyclics and MAO inhibitors. Effects, dosing and side effects vary; interactions and monitoring may be necessary.
Prescription medicines used to treat depression, anxiety disorders, OCD and some chronic pain conditions. Classes include SSRIs, SNRIs, tricyclics and MAO inhibitors. Effects, dosing and side effects vary; interactions and monitoring may be necessary.
Antidepressants are a group of prescription medicines that act on brain chemistry to help regulate mood, anxiety and certain physical symptoms linked to mood disorders. They work by altering levels or activity of neurotransmitters such as serotonin, norepinephrine and dopamine, which influence emotion, sleep, appetite and thinking. Although commonly called antidepressants, the drugs in this group vary in how they work and in the symptoms they target.
These medicines are most often used for depressive disorders, but many are also prescribed for anxiety disorders, panic disorder, obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD) and some chronic pain conditions like neuropathic pain or fibromyalgia. Certain agents are additionally used to support smoking cessation, manage menopausal symptoms or as part of broader treatment plans for mood instability. Clinical use is guided by the symptom pattern, prior treatment history and how an individual responds to a given medication.
Common classes found here include selective serotonin reuptake inhibitors (SSRIs) such as sertraline (Zoloft), escitalopram (Lexapro) and citalopram (Celexa); serotonin–norepinephrine reuptake inhibitors (SNRIs) like venlafaxine (Effexor) and duloxetine (Cymbalta); atypical antidepressants such as bupropion (Wellbutrin) and mirtazapine (Remeron); and older tricyclic agents like amitriptyline (Elavil) or imipramine (Tofranil). Some mood-stabilizing or antipsychotic medicines — for example quetiapine (Seroquel), aripiprazole (Abilify) or olanzapine (Zyprexa) — are sometimes used alongside antidepressants in complex or resistant cases.
Safety and tolerability vary across agents. Common side effects can include gastrointestinal upset, changes in sleep or appetite, sexual side effects, dry mouth or dizziness; some medicines are associated with weight changes or increased sedation. Stopping certain drugs abruptly can produce discontinuation symptoms for some people, and interactions with other medications or substances are possible. A few agents require blood tests or other monitoring when used long term, and some have specific warnings for particular populations.
When comparing options, people often consider which drug class best matches their symptoms, expected side effect profile, dosing frequency and whether an extended‑release formulation is needed. Past personal response or family history of response, availability of generic versions, and how a medicine has performed in similar conditions can also influence choices. Formulation differences such as immediate‑release versus controlled‑release are relevant for tolerability and convenience.
Expectations about how quickly benefits appear and whether multiple trials may be needed are part of routine use: many antidepressants require several weeks before a full effect is seen, and adjustments or switches between medicines are not uncommon if the initial choice is ineffective or poorly tolerated. Extended‑release preparations and sustained‑release formulations are available for some agents (for example venlafaxine XR or bupropion SR), and a range of oral options offers different profiles to match individual needs and preferences.
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