About This Article
This article provides educational information about psychiatric medications. It is not a substitute for personalised medical advice from your doctor or psychiatrist, who can assess your specific situation, history, and needs.
Medication decisions should always be made with a qualified prescriber who knows your full medical history.
The Role of Medication in Mental Health Treatment
Medication is one of several treatment options for mental health conditions. For some conditions and some people, medication is a highly effective tool that reduces symptoms and allows engagement with therapy and daily life. For others, therapy alone may be sufficient. Often, a combination of medication and talking therapy produces the best outcomes.
Medication does not "cure" mental health conditions. It typically works by correcting imbalances in brain chemicals (neurotransmitters) that contribute to symptoms. It is usually most helpful as part of a broader treatment plan.
Main Types of Psychiatric Medication
Antidepressants
Antidepressants are the most commonly prescribed psychiatric medications. Despite their name, they are used not only for depression but for anxiety disorders, OCD, PTSD, eating disorders, and other conditions.
How they work: Most antidepressants affect serotonin, noradrenaline, or dopamine — neurotransmitters involved in mood regulation. They generally take 2–6 weeks to produce noticeable effects, and 4–8 weeks for full effect.
Main types:
| Type | Examples | Commonly used for | |------|----------|-------------------| | SSRIs (Selective Serotonin Reuptake Inhibitors) | Fluoxetine, sertraline, escitalopram, citalopram | Depression, anxiety, OCD, PTSD, eating disorders | | SNRIs (Serotonin-Noradrenaline Reuptake Inhibitors) | Venlafaxine, duloxetine | Depression, anxiety, chronic pain | | TCAs (Tricyclic Antidepressants) | Amitriptyline, nortriptyline | Depression (second-line); chronic pain, sleep | | MAOIs (Monoamine Oxidase Inhibitors) | Phenelzine, tranylcypromine | Treatment-resistant depression (rarely used now due to dietary restrictions) | | Atypical antidepressants | Mirtazapine, bupropion, trazodone | Various; selected for specific side-effect profiles |
Common side effects (SSRIs/SNRIs): Nausea, headache, sleep disturbance, sexual side effects, initial increase in anxiety, agitation. Most side effects improve after the first few weeks.
Important: Do not stop antidepressants suddenly — taper under medical supervision to avoid discontinuation effects.
Anti-anxiety Medications (Anxiolytics)
Benzodiazepines (e.g. diazepam, lorazepam, clonazepam) are fast-acting and effective for anxiety and panic, but carry a significant risk of dependence with regular use. They are generally recommended only for short-term use (1–4 weeks) or for specific situations (e.g. panic attacks, pre-procedure anxiety).
Buspirone is a non-benzodiazepine anxiolytic with lower dependence risk, used for generalised anxiety disorder. It takes several weeks to work.
Beta-blockers (e.g. propranolol) reduce physical symptoms of anxiety (heart pounding, trembling). Used for situational anxiety (performance anxiety, social situations) rather than chronic anxiety.
Note: SSRIs and SNRIs are generally the first-line medication treatment for chronic anxiety disorders, given their long-term safety profile and broad effectiveness.
Mood Stabilisers
Mood stabilisers are primarily used for bipolar disorder, to reduce the frequency and severity of mood episodes.
| Medication | Notes | |------------|-------| | Lithium | The most established mood stabiliser; highly effective for bipolar I; requires regular blood monitoring for levels and kidney/thyroid function | | Valproate (Depakote) | Effective for mania; not appropriate for people who may become pregnant | | Lamotrigine | Particularly effective for preventing depressive episodes in bipolar II | | Carbamazepine | Used in some cases; requires blood monitoring |
Mood stabilisers require careful monitoring and dose management. They are long-term medications — stopping them abruptly can cause rebound episodes.
Antipsychotics
Antipsychotics are used for conditions involving psychosis (schizophrenia, bipolar disorder with psychotic features, severe depression with psychosis) and are increasingly used as augmentation for depression and anxiety that has not responded to antidepressants.
First-generation (typical) antipsychotics (e.g. haloperidol, chlorpromazine) are older; effective but have a higher side-effect burden.
Second-generation (atypical) antipsychotics (e.g. quetiapine, olanzapine, risperidone, aripiprazole) are now most commonly used; generally better tolerated, though metabolic side effects (weight gain, blood sugar changes) require monitoring.
Sleeping Medications (Hypnotics)
Sleeping medications are generally recommended only for short-term use, as they can create dependence and do not address the underlying causes of insomnia.
- Z-drugs (zopiclone, zaleplon) — non-benzodiazepine hypnotics with similar risks
- Antihistamines — sedating antihistamines (diphenhydramine) are available OTC but lose effectiveness quickly
- Low-dose tricyclics — sometimes used off-label for sleep; less dependence risk
- Melatonin — helpful for circadian rhythm disturbances; low side-effect profile
For chronic insomnia, Cognitive Behavioural Therapy for Insomnia (CBT-I) is more effective than medication and has lasting results.
ADHD Medications
- Stimulants (methylphenidate/Ritalin, amphetamines/Adderall) — first-line medications for ADHD; highly effective but require monitoring for heart rate, blood pressure, and growth in children
- Non-stimulants (atomoxetine/Strattera, guanfacine) — used when stimulants are not tolerated or appropriate
Key Considerations When Taking Psychiatric Medication
Starting medication
- Effects take time — most medications take weeks to produce full benefit
- Side effects often occur before benefits — this is normal and usually transient
- Keep a brief diary of symptoms and side effects to discuss with your doctor
Communicating with your prescriber
- Report all side effects, even those that seem minor
- Tell your prescriber about all other medications, supplements, and substances you use
- Be honest about alcohol and drug use — it affects medication safety and effectiveness
- Ask about what to expect, when to expect results, and what the stopping plan is
Stopping medication
- Never stop psychiatric medication abruptly without discussing with your prescriber
- Many medications require gradual tapering to avoid withdrawal or rebound effects
- The decision to stop should be made collaboratively with your prescriber, often after a sustained period of wellbeing
Medication and pregnancy/breastfeeding
- The safety of psychiatric medications in pregnancy and breastfeeding varies considerably
- If you are pregnant, planning to become pregnant, or breastfeeding, discuss all medications with your prescriber — the risks of untreated mental illness must be weighed against medication risks
Medication Is Not the Only Option
Medication is one tool among many. For many conditions, psychotherapy is equally or more effective. Lifestyle factors — sleep, exercise, social connection, stress management — are powerful supplements to any treatment. Complementary approaches may have a supporting role.
A good psychiatrist or prescribing physician will take time to discuss all options with you and involve you in the decision.
Finding a Prescriber
Your primary care doctor can prescribe many psychiatric medications and refer you to a psychiatrist for more complex cases. Psychiatrists specialise in mental health medication management.
See our finding help article for practical guidance on accessing care.