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Medication Library

Know Your Medicine

Plain-language profiles of the most commonly prescribed psychiatric medications — what each treats, how it works, common side effects, and important safety notes.

Showing 25 of 25 medications

Sertraline

Zoloft

SSRIDepressionPanic Disorder+4 more

How it works

Blocks the reabsorption of serotonin, allowing mood-regulating signals between brain cells to last longer.

Treats

DepressionPanic DisorderOCDPTSDSocial AnxietyPMDD

Common side effects

NauseaDiarrheaInsomnia or drowsinessHeadacheSexual side effects

Good to know: One of the most prescribed antidepressants and often a first choice. Taking it with food can ease nausea; morning dosing helps if it feels activating.

Escitalopram

Lexapro

SSRIDepressionGeneralized Anxiety

How it works

A highly selective SSRI that increases available serotonin in brain circuits that regulate mood and worry.

Treats

DepressionGeneralized Anxiety

Common side effects

NauseaFatigueInsomniaSexual side effects

Good to know: Generally well tolerated with relatively few drug interactions, which makes it a common option for people on multiple medications.

Fluoxetine

Prozac

SSRIDepressionOCD+2 more

How it works

Increases serotonin signaling; has a long duration in the body, so effects persist even with an occasional missed day.

Treats

DepressionOCDPanic DisorderBulimia

Common side effects

Nervousness or restlessnessInsomniaReduced appetiteSexual side effects

Good to know: Energizing rather than sedating, so it is usually taken in the morning. It is also approved for certain uses in children and adolescents.

Paroxetine

Paxil, Pexeva

SSRIDepressionGeneralized Anxiety+2 more

How it works

An SSRI with mild calming (anticholinergic) effects in addition to serotonin reuptake blockade.

Treats

DepressionGeneralized AnxietyPanic DisorderSocial Anxiety

Common side effects

DrowsinessWeight gainDry mouthSexual side effectsDiscontinuation symptoms

Good to know: More sedating than most SSRIs and more prone to withdrawal symptoms if stopped abruptly, so tapering is especially important. It is generally avoided during pregnancy.

Citalopram

Celexa

SSRIDepression

How it works

Increases serotonin availability; a straightforward, well-studied option for depressive episodes.

Treats

Depression

Common side effects

NauseaDrowsinessDry mouthSexual side effects

Good to know: Doses above 40 mg (20 mg for adults over 60) are not recommended because of heart-rhythm (QT interval) considerations.

Venlafaxine

Effexor XR

SNRIDepressionGeneralized Anxiety+2 more

How it works

Increases both serotonin and norepinephrine, the two messenger systems most tied to mood and energy.

Treats

DepressionGeneralized AnxietyPanic DisorderSocial Anxiety

Common side effects

NauseaIncreased blood pressure at higher dosesSweatingDiscontinuation symptoms if doses are missed

Good to know: Because it leaves the body quickly, taking it every day at the same time matters. Blood pressure is monitored, especially at higher doses.

Duloxetine

Cymbalta

SNRIDepressionGeneralized Anxiety+3 more

How it works

Increases serotonin and norepinephrine, which dampens both low mood and pain signaling in the spinal cord.

Treats

DepressionGeneralized AnxietyNerve PainFibromyalgiaChronic Pain

Common side effects

NauseaDry mouthConstipationFatigue

Good to know: A frequent choice when depression coexists with chronic pain conditions. Heavy alcohol use is discouraged because of liver considerations.

Desvenlafaxine

Pristiq

SNRIDepression

How it works

The active metabolite of venlafaxine; increases serotonin and norepinephrine with simple once-daily dosing.

Treats

Depression

Common side effects

NauseaDry mouthSweatingDecreased appetite

Good to know: Minimal dose adjustments are typically needed, which makes it easy to manage long-term.

Bupropion

Wellbutrin, XL, SR

Atypical (NDRI)DepressionSeasonal Depression+1 more

How it works

Increases dopamine and norepinephrine rather than serotonin; noticeably energizing.

Treats

DepressionSeasonal DepressionLow Energy or Focus

Common side effects

InsomniaJitterinessDry mouthHeadache

Good to know: Rarely causes sexual side effects and can be layered onto another antidepressant for energy and motivation. It is not appropriate for people with seizure disorders or active eating disorders, and it can worsen anxiety in some people.

Mirtazapine

Remeron

AtypicalDepressionInsomnia+1 more

How it works

Blocks certain serotonin receptors while broadly increasing serotonin and norepinephrine release; reliably sedating.

Treats

DepressionInsomniaPoor Appetite

Common side effects

DrowsinessIncreased appetiteWeight gainDry mouth

Good to know: Often chosen when depression comes with significant insomnia or appetite loss, and it is frequently used for older adults. Lower doses are typically more sedating than higher ones.

Trazodone

Desyrel

Atypical (SARI)InsomniaDepression (at higher doses)

How it works

Mildly increases serotonin while blocking histamine receptors, which produces sleepiness at low doses.

Treats

InsomniaDepression (at higher doses)

Common side effects

Morning grogginessDizzinessDry mouthLow blood pressure on standing

Good to know: Most often prescribed at low doses as a non-habit-forming sleep aid. A rare but serious side effect, a prolonged erection, requires emergency care.

Buspirone

BuSpar

AzapironeGeneralized Anxiety

How it works

Acts on serotonin and dopamine receptors to lower baseline anxiety gradually, without sedation.

Treats

Generalized Anxiety

Common side effects

DizzinessNauseaHeadacheNervousness

Good to know: Takes two to four weeks to reach full effect and is not habit-forming. It is not effective for panic attacks or as-needed anxiety relief.

Hydroxyzine

Vistaril, Atarax

AntihistamineShort-term AnxietySleep+1 more

How it works

Blocks histamine receptors in the brain, producing calmness and drowsiness.

Treats

Short-term AnxietySleepItching or Hives

Common side effects

DrowsinessDry mouthDizziness

Good to know: A non-habit-forming option for short-term or situational anxiety, commonly used before medical procedures or during early treatment while longer-term medications build up.

Benzodiazepines

Lorazepam, Alprazolam, Clonazepam

CNS DepressantAcute AnxietyPanic Attacks+1 more

How it works

Enhances GABA, the brain's main calming chemical, producing rapid relief of acute anxiety.

Treats

Acute AnxietyPanic AttacksShort-term Insomnia

Common side effects

DrowsinessDizzinessImpaired coordinationMemory difficulties

Good to know: Fast-acting but habit-forming, so they are intended for short-term or carefully supervised use. Never combine with alcohol or opioids, and stopping requires a slow taper. Longer-term anxiety is better treated with SSRIs, SNRIs, or therapy.

Lithium

Lithobid

Mood StabilizerBipolar DisorderMood Instability+1 more

How it works

Modulates multiple signaling pathways to reduce the intensity and frequency of mood episodes.

Treats

Bipolar DisorderMood InstabilitySuicide Risk Reduction

Common side effects

TremorIncreased thirst and urinationWeight gainThyroid changes

Good to know: One of the most effective treatments in psychiatry and proven to reduce suicide risk. Regular blood tests keep the level in a safe range; stay hydrated, and check before using ibuprofen or similar anti-inflammatories, which can raise levels.

Valproate

Depakote, Depakene

Mood StabilizerBipolar ManiaRapid Cycling+1 more

How it works

Increases GABA activity and calms overactive neural firing that drives manic episodes.

Treats

Bipolar ManiaRapid CyclingSeizure Disorders

Common side effects

NauseaWeight gainTremorHair thinningFatigue

Good to know: Requires periodic blood tests for liver function and blood counts. It is not used during pregnancy because of a high risk of birth defects, and it interacts with alcohol.

Lamotrigine

Lamictal

Mood StabilizerBipolar DepressionMood Episode Prevention+1 more

How it works

Reduces glutamate release, stabilizing mood with a particular strength in preventing depressive episodes.

Treats

Bipolar DepressionMood Episode PreventionSeizure Disorders

Common side effects

HeadacheDizzinessBlurred visionNausea

Good to know: The dose must increase slowly over several weeks; rushing this raises the risk of a serious rash. Any rash, blistering, or mouth sores means stopping the medication and seeking medical care immediately.

Aripiprazole

Abilify

Atypical AntipsychoticSchizophreniaBipolar Disorder+2 more

How it works

A partial agonist: it steadies dopamine and serotonin activity rather than simply suppressing it.

Treats

SchizophreniaBipolar DisorderTreatment-Resistant Depression (adjunct)Irritability in Autism

Common side effects

Inner restlessness (akathisia)InsomniaWeight gain (less than many)Nausea

Good to know: Frequently added to an antidepressant when depression has not fully responded. Long-acting injectable versions are available for monthly dosing.

Quetiapine

Seroquel, Seroquel XR

Atypical AntipsychoticSchizophreniaBipolar Disorder+2 more

How it works

Blocks serotonin and dopamine receptors, with strong antihistamine effects at low doses.

Treats

SchizophreniaBipolar DisorderDepression (adjunct)Insomnia (low doses)

Common side effects

SedationWeight gainMetabolic changesDizziness on standing

Good to know: Weight, blood sugar, and cholesterol are monitored regularly during treatment. Low doses are sometimes used for sleep, though this use carries the same metabolic considerations.

Risperidone

Risperdal, Risperdal Consta

Atypical AntipsychoticSchizophreniaBipolar Mania+1 more

How it works

Blocks dopamine and serotonin receptors, with strong dopamine blockade at higher doses.

Treats

SchizophreniaBipolar ManiaIrritability in Autism

Common side effects

Elevated prolactinWeight gainMuscle stiffnessRestlessness

Good to know: Often used at low doses, including in children and adolescents. Movement effects are monitored at each visit, and a long-acting injectable version is available.

Lurasidone

Latuda

Atypical AntipsychoticSchizophreniaBipolar Depression

How it works

Blocks serotonin and dopamine receptors with a relatively favorable metabolic profile.

Treats

SchizophreniaBipolar Depression

Common side effects

NauseaRestlessnessDrowsinessMild weight change

Good to know: Must be taken with food (at least 350 calories) for proper absorption. It is known for causing less weight gain than many alternatives.

Methylphenidate

Ritalin, Concerta, Daytrana

StimulantADHDNarcolepsy

How it works

Increases dopamine and norepinephrine in the brain's attention and impulse-control circuits.

Treats

ADHDNarcolepsy

Common side effects

Reduced appetiteInsomnia (if dosed late)Increased heart rateIrritability as doses wear off

Good to know: Available in short-acting (4-6 hours) and long-acting (8-12 hours) forms. A solid breakfast and good late-day meal offset appetite effects, and medication is stored securely and never shared.

Amphetamine-based Stimulants

Adderall, Vyvanse, Dexedrine

StimulantADHD

How it works

Increase dopamine and norepinephrine release; Vyvanse is a prodrug that converts gradually for smoother coverage.

Treats

ADHD

Common side effects

Reduced appetiteInsomniaDry mouthIncreased heart rate

Good to know: Long-acting forms cover 8-14 hours with a smoother rise and fade than short-acting versions. Dose titration is guided by focus goals and side-effect feedback over several visits.

Atomoxetine

Strattera

Non-StimulantADHD

How it works

Selectively increases norepinephrine throughout the day; taken daily rather than as needed.

Treats

ADHD

Common side effects

NauseaFatigueDecreased appetiteMood changes (rare, report promptly)

Good to know: Takes four to six weeks for full effect, so early patience matters. A good option when stimulants are not tolerated, when substance-use history is a concern, or when 24-hour coverage is preferred.

Guanfacine ER

Intuniv

Non-StimulantADHDImpulsivity+2 more

How it works

Acts on norepinephrine receptors in the prefrontal cortex, strengthening attention regulation without stimulation.

Treats

ADHDImpulsivityEmotional ReactivityTics

Common side effects

DrowsinessLow blood pressureDry mouthSlow heart rate

Good to know: Especially useful for emotional reactivity, tics, or as an add-on to a stimulant. It should not be stopped abruptly, and blood pressure is monitored.

Questions About Your Medication?

This library is for education only and is not medical advice. Never start, stop, or change a medication without your prescriber — schedule a medication management visit and we'll build the plan together.

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