TLDR

For anxiety and depression together, psychiatrists most often start with an SSRI — typically sertraline (Zoloft) or escitalopram (Lexapro) — or an SNRI like venlafaxine (Effexor XR) when anxiety is more prominent. The best antidepressant for you depends on your specific symptom pattern, other health conditions, and prior treatment history. A licensed online psychiatrist through Klarity can evaluate your case and prescribe what is clinically appropriate.

Best Antidepressants for Anxiety and Depression: What a Psychiatrist Prescribes Online

Anxiety and depression frequently occur together. Studies suggest that more than half of people diagnosed with major depressive disorder also meet criteria for at least one anxiety disorder. When both conditions are present simultaneously, treatment decisions become more nuanced — not all antidepressants address both equally well.

This guide covers what psychiatrists actually prescribe for comorbid anxiety and depression, how SSRIs and SNRIs compare, and what you can expect when you seek an online prescription through Klarity.

Table of Contents

• Do Antidepressants Treat Both Anxiety and Depression?
• SSRIs vs. SNRIs: What's the Difference?
• Best SSRIs for Anxiety and Depression
• Best SNRIs for Anxiety and Depression
• Other Antidepressants Psychiatrists May Prescribe
• How a Psychiatrist Chooses Your Medication
• How to Get an Antidepressant Prescribed Online
• Insurance and Cost

Do Antidepressants Treat Both Anxiety and Depression?

Yes. Many antidepressants are FDA-approved for both conditions or have strong clinical evidence for both uses. SSRIs and SNRIs, in particular, are standard first-line treatments for major depressive disorder, generalized anxiety disorder (GAD), panic disorder, social anxiety disorder, and PTSD — often simultaneously.

This dual efficacy is why psychiatrists frequently reach for them when a patient presents with overlapping symptoms. A single medication can address low mood, persistent worry, sleep disruption, and physical tension rather than requiring separate drug regimens.

SSRIs vs. SNRIs: What's the Difference?

Both SSRIs and SNRIs are antidepressants, but they have meaningfully different mechanisms and clinical profiles.

SSRIs (Selective Serotonin Reuptake Inhibitors)

SSRIs block the reabsorption of serotonin in the brain, increasing its availability in the synaptic gap. Serotonin plays a central role in mood regulation, sleep, appetite, and the fear response — all of which are disrupted in depression and anxiety.

Key characteristics:

• First-line treatment for most depressive and anxiety disorders
• Generally well-tolerated with a predictable side effect profile
• Sexual side effects (reduced libido, delayed orgasm) are the most common reason patients discontinue
• Common side effects early in treatment include nausea, insomnia, and headache — most resolve within two to four weeks
• Take four to eight weeks to reach full therapeutic effect

SNRIs (Serotonin-Norepinephrine Reuptake Inhibitors)

SNRIs block the reabsorption of both serotonin and norepinephrine. Norepinephrine influences alertness, energy, and the stress response, which makes SNRIs particularly useful when anxiety manifests as physical tension, fatigue, or concentration problems alongside depressive symptoms.

Key characteristics:

• Effective for depression, GAD, social anxiety, panic disorder, and pain conditions
• Slightly more activating than SSRIs — can be helpful for low-energy depression or fatigue
• Higher doses can cause blood pressure elevation; monitoring may be recommended
• Discontinuation syndrome (dizziness, irritability, flu-like symptoms) can occur if stopped abruptly — always taper with provider guidance
• Take four to eight weeks to reach full therapeutic effect

Bottom line: SSRIs are generally the starting point for most patients. SNRIs are often preferred when anxiety symptoms are more severe, energy/concentration are significantly impaired, or there is overlap with chronic pain.

Best SSRIs for Anxiety and Depression

Sertraline (Zoloft)

Sertraline is one of the most prescribed antidepressants in the United States and has FDA approvals spanning major depressive disorder, panic disorder, social anxiety disorder, OCD, PTSD, and premenstrual dysphoric disorder (PMDD).

Why psychiatrists prescribe it:

• Strong evidence base across multiple anxiety and depressive conditions
• Widely available as a generic, making it cost-effective
• Flexible dosing range (25 mg to 200 mg daily) allows gradual titration
• Well-studied safety profile including in pregnancy and older adults

Best for: Patients with mixed depression and anxiety who need a flexible, well-tolerated first-line option.

Escitalopram (Lexapro)

Escitalopram has FDA approvals for major depressive disorder and generalized anxiety disorder — making it one of the few antidepressants with explicit dual indications.

Why psychiatrists prescribe it:

• Among the cleanest side effect profiles of all SSRIs, with relatively few drug interactions
• Effective at lower doses (10 mg), reducing tolerability concerns
• Consistently ranked highly in comparative antidepressant effectiveness studies (Cipriani et al., Lancet 2018)
• Once-daily dosing improves adherence

Best for: Patients who have had side effect problems with other SSRIs, or who have generalized anxiety as their primary concern alongside depression.

Fluoxetine (Prozac)

Fluoxetine is the longest-acting SSRI and one of the oldest, with a well-established safety record spanning decades of clinical use.

Why psychiatrists prescribe it:

• Long half-life makes it more forgiving if doses are missed
• Lower risk of discontinuation syndrome compared to shorter-acting SSRIs
• Approved for depression, OCD, panic disorder, and bulimia nervosa
• Available in weekly formulation for patients with adherence challenges

Best for: Patients who travel frequently, have variable schedules, or who have experienced discontinuation symptoms with other antidepressants.

Citalopram (Celexa)

Citalopram is a well-tolerated, straightforward SSRI with broad use in primary care and general psychiatric practice.

Why psychiatrists prescribe it:

• Simple once-daily dosing
• Fewer drug interactions than some other SSRIs
• Affordable generic pricing

Note: Doses above 40 mg daily carry a small risk of QT prolongation; most patients are maintained at 20 to 40 mg.

Best for: Older adults or patients taking multiple medications, where minimizing drug interactions is a priority.

Best SNRIs for Anxiety and Depression

Venlafaxine (Effexor XR)

Venlafaxine is the most widely prescribed SNRI and holds FDA approvals for major depressive disorder, generalized anxiety disorder, social anxiety disorder, and panic disorder — the broadest indication set of any antidepressant.

Why psychiatrists prescribe it:

• Dual action on serotonin and norepinephrine targets the physical and cognitive symptoms of anxiety alongside mood symptoms
• Extended-release formulation (Effexor XR) improves tolerability and simplifies dosing
• Effective at a wide dose range; higher doses provide stronger norepinephrine effects
• Strong evidence in treatment-resistant depression cases

Best for: Patients with significant anxiety alongside depression, particularly when fatigue, physical tension, or difficulty concentrating are prominent.

Important: Never stop venlafaxine abruptly. Discontinuation symptoms can be significant. Always taper under provider supervision.

Duloxetine (Cymbalta)

Duloxetine works on serotonin and norepinephrine and carries approvals for major depressive disorder, GAD, fibromyalgia, chronic musculoskeletal pain, and diabetic neuropathy.

Why psychiatrists prescribe it:

• Particularly effective when depression overlaps with chronic physical pain
• FDA-approved for GAD, with strong evidence in anxious depression
• Useful for patients managing both a pain condition and mood or anxiety disorder

Best for: Patients with comorbid chronic pain, fibromyalgia, or significant somatic symptoms alongside depression and anxiety.

Other Antidepressants Psychiatrists May Prescribe

Bupropion (Wellbutrin)

Bupropion works on dopamine and norepinephrine rather than serotonin. It does not carry FDA approval for anxiety disorders — in fact, it can worsen anxiety in some patients. Psychiatrists may consider it for patients whose depression is not anxiety-driven, or when sexual side effects from SSRIs are a significant concern.

Not typically the first choice when anxiety is a primary diagnosis alongside depression, but useful for low-energy or anhedonia-dominant depression.

Mirtazapine (Remeron)

Mirtazapine works through a different mechanism than SSRIs or SNRIs and has strong sedating properties, making it useful when sleep disruption is a major component of a patient's presentation. It also stimulates appetite, which can be beneficial when significant weight loss or appetite suppression accompanies depression.

How a Psychiatrist Chooses Your Medication

No single antidepressant is objectively "best" for all patients. A psychiatrist considers:

• Your specific symptom profile — is anxiety predominantly cognitive worry, physical tension, or panic attacks? Is depression characterized by sadness, anhedonia, fatigue, or all three?
• Prior treatment history — what has worked before, what has not, and what side effects you experienced
• Other health conditions — cardiac history, pain conditions, sleep disorders, and other psychiatric diagnoses all influence prescribing
• Other medications — drug interactions and shared side effect risks
• Lifestyle and preferences — daily adherence, sensitivity to sexual side effects, weight concerns

This is why an evaluation by a licensed psychiatrist matters, even for first-line medications. What works well for one person's anxiety-depression combination may be ineffective or poorly tolerated for another.

How to Get an Antidepressant Prescribed Online

Through Klarity, you can connect with a board-certified online psychiatrist without a referral or a months-long wait. The process:

1. Complete an online intake — 10 to 15 minutes covering your symptoms, history, and goals
2. Book an appointment — same-week availability in most states
3. Meet your provider via secure video — a full psychiatric evaluation conducted from home
4. Receive your prescription — sent directly to your pharmacy if medication is clinically appropriate

Klarity's network of 2,000+ licensed providers across all 50 states means you can typically see someone within 24 to 48 hours of signing up.

Insurance and Cost

Many insurance plans may cover online psychiatric visits through Klarity, including plans from Aetna, Cigna, Blue Shield, Anthem, United Healthcare, and Blue Cross Blue Shield. Coverage varies significantly by plan and state.

Important: Insurance coverage varies by plan. This content does not guarantee coverage. Patients should verify their benefits before booking an appointment.

Before your visit:

• Call the member services number on your insurance card
• Ask about "telehealth psychiatric care" and "outpatient medication management"
• Confirm provider network status

Check if your plan may cover this or see if you may qualify for online psychiatric care through Klarity. Self-pay options are also available for patients without insurance coverage.

Related reading:

• Online Depression Treatment: How to Get Antidepressants Without Leaving Home
• Online Anxiety Treatment through Klarity
• How Online Psychiatry Works