BuSpar (Buspirone) 5 mg / 7.5 mg / 10 mg / 15 mg / 30 mg Tablets: Prescription Non-Benzodiazepine Anxiolytic for Generalised Anxiety Disorder — No Dependence, No Sedation, 2–4 Weeks to Full Effect, Not Available OTC

Information last reviewed: May 2026 — for educational purposes only.

What Is BuSpar (Buspirone)?

Buspirone, marketed as BuSpar, is an azapirone anxiolytic — a class entirely distinct from benzodiazepines, barbiturates, and other sedative-hypnotics. It acts as a partial agonist at the serotonin 5-HT1A receptor and as a D2 dopamine receptor antagonist. Through these mechanisms, buspirone reduces anxiety without causing sedation, cognitive impairment, physical dependence, or withdrawal. It is not a controlled substance, has no abuse potential, and does not potentiate alcohol. These properties make it a preferred alternative for patients with anxiety disorders who have a history of substance misuse or in whom sedation must be avoided.

Prescription (Rx) Status

Buspirone is a prescription-only medication. Generic buspirone tablets are widely available and inexpensive. BuSpar (brand) is less commonly stocked, as generics dominate. Buspirone is not a controlled substance (Schedule IV is assigned to benzodiazepines, not buspirone). A key limitation: buspirone is ineffective for acute anxiety or panic attacks — it has no immediate anxiolytic effect. Its benefit is gradual and requires 2–4 weeks of continuous daily use to take effect.

Uses of Buspirone

FDA-approved: generalised anxiety disorder (GAD) in adults. Off-label: augmentation of antidepressants (particularly SSRIs) for residual anxiety symptoms; buspirone added to an SSRI can also partially mitigate SSRI-induced sexual dysfunction through its 5-HT1A agonism. It is not effective for phobias, OCD, or panic disorder in most patients.

Tablet Strengths

Buspirone oral tablets: 5 mg, 7.5 mg, 10 mg, 15 mg, and 30 mg. Starting dose: 7.5 mg twice daily, then titrated in increments of 5 mg/day every 2–3 days as tolerated. Usual therapeutic range: 15–30 mg/day in divided doses (2–3 times daily). Maximum dose: 60 mg/day. Take consistently with or without food — grapefruit juice significantly increases buspirone levels and should be avoided.

Price

Generic buspirone is among the most affordable anxiolytics. A 30-day supply of 10 mg tablets (twice daily) typically costs $10–$25 at most pharmacies.

Frequently Asked Questions

Q: How long does buspirone take to work?
A: Unlike benzodiazepines which work immediately, buspirone requires 2–4 weeks of consistent daily use before anxiolytic effects are felt. Patients who expect immediate relief are often disappointed and discontinue prematurely.

Q: Is buspirone addictive?
A: No — buspirone has no abuse potential and is not a controlled substance. It does not cause physical dependence or withdrawal syndrome and can be tapered and discontinued without significant withdrawal effects.

Q: Can buspirone be taken with SSRIs?
A: Yes — in fact, combining buspirone with an SSRI is sometimes used to augment antidepressant response or to reduce SSRI-induced sexual side effects. Discuss all combinations with your prescriber.

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