Buspar vs. Vistaril
See how Buspar and Vistaril compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Buspar is a non-sedating anxiolytic with no abuse potential, while Vistaril is a sedating antihistamine also used for allergic itching.
Buspar needs several weeks of gradual dose increases to work, whereas Vistaril's antihistamine effects, including sedation, start working the same day.
Neither drug is a controlled substance, but Vistaril's label carries a QT-prolongation warning that Buspar's current label does not have.
Buspar vs. Vistaril Drug Summary
Buspar
Buspar (buspirone) is an anxiolytic in the azaspirodecanedione class used to manage anxiety disorders and short-term anxiety symptoms. It is taken as an oral tablet, usually twice a day, with the dose raised gradually over several weeks to reach an effective level.
Vistaril
Vistaril (hydroxyzine pamoate) is a piperazine antihistamine used both for anxiety related to psychoneurosis and for allergic itching such as urticaria or dermatitis. It is taken as an oral capsule or suspension, typically several times a day, with sedating effects that begin quickly.
Buspar vs. Vistaril Side Effects
Buspar
Vistaril
Buspar vs. Vistaril Dosage
Buspar
Vistaril
| STAGE | DOSE | WHEN |
| Starting dose | 5 mg twice daily | At the start |
| Maximum dose | 60 mg/day maximum | If needed |
| Dose changes | 3 increases | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 50-100 mg 4 times daily | At the start |
| Maximum dose | 50-100 mg daily divided | If needed |
| Dose changes | 2 increases | As tolerated |
Buspar
| STAGE | DOSE | WHEN |
| Starting dose | 5 mg twice daily | At the start |
| Maximum dose | 60 mg/day maximum | If needed |
| Dose changes | 3 increases | As tolerated |
Vistaril
| STAGE | DOSE | WHEN |
| Starting dose | 50-100 mg 4 times daily | At the start |
| Maximum dose | 50-100 mg daily divided | If needed |
| Dose changes | 2 increases | As tolerated |
Buspar vs. Vistaril Indications
Buspar
Buspar is FDA-approved for managing anxiety disorders and for short-term relief of anxiety symptoms. It is sometimes used off-label alongside antidepressants for depression or to counter SSRI-related sexual side effects, though it is not approved for panic disorder or stress-related anxiety.
Management of anxiety disorders
Short-term relief of anxiety symptoms
Off-label: adjunct treatment for depression
Off-label: SSRI-induced sexual dysfunction
Vistaril
Vistaril is FDA-approved for anxiety and tension linked to psychoneurosis and as an adjunct when anxiety accompanies another medical condition. It also treats itching from allergic skin conditions and provides sedation before or after anesthesia.
Anxiety and tension from psychoneurosis
Adjunct for anxiety with organic disease
Management of allergic pruritus
Sedation before or after anesthesia
Buspar vs. Vistaril Pros and Cons
Buspar
Buspar is not a controlled substance and carries no meaningful risk of abuse or physical dependence, making it a reasonable option for long-term daily use. It does not cause the significant sedation typical of hydroxyzine, but its effects build slowly over weeks rather than working right away.
Pros
Not a controlled substance, no abuse potential
Minimal sedation compared to antihistamine options
No boxed warning on current label
Roughly $8 to $40 per month without insurance, generally cheaper than Vistaril
Cons
Takes several weeks to reach full effect
Requires consistent twice-daily dosing
Risk of serotonin syndrome with SSRIs or MAOIs
Not effective for sudden panic attacks
Vistaril
Vistaril works quickly because its sedating antihistamine effect starts within the first dose, which can help with acute anxiety symptoms. It also doubles as a treatment for allergic itching, but it requires more frequent dosing and carries a cardiac warning that Buspar's label does not.
Pros
Fast-acting sedative effect for acute anxiety
Dual use for anxiety and allergic itching
Long clinical track record since the 1950s
Available as a liquid suspension option
Cons
Contraindicated with QT prolongation or early pregnancy
Dosing up to four times a day
More noticeable drowsiness may affect driving or work
Roughly $25 to $330 per month, often costlier than Buspar
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