Buspirone 30 mg Single Tablet Availability
No, a single 30 mg tablet of buspirone (Buspar) is not commercially available in the United States. Based on FDA labeling and clinical evidence, buspirone is manufactured and prescribed in lower-strength tablets that are dosed multiple times daily 1.
Available Formulations
According to FDA drug labeling, buspirone hydrochloride tablets are available in the following strengths 1:
- 5 mg tablets
- 7.5 mg tablets
- 10 mg tablets
- 15 mg tablets
To achieve a 30 mg daily dose, patients must take multiple tablets throughout the day, typically divided into 2-3 doses.
Standard Dosing Patterns
The typical dosing regimen for buspirone involves 2, 3:
- Initial dose: 5 mg twice daily (10 mg/day total)
- Maximum dose: 20 mg three times daily (60 mg/day total)
- Common therapeutic dose: 15 mg twice daily or 10 mg three times daily (30 mg/day total)
For a 30 mg daily dose specifically, patients would take either:
- 15 mg tablet twice daily, OR
- 10 mg tablet three times daily
Research has demonstrated that both twice-daily and three-times-daily regimens at 30 mg total daily dose are equally effective and safe 4.
Extended-Release Formulations
While extended-release formulations of buspirone have been studied in research settings 5, 6, showing 30 mg once-daily dosing with improved pharmacokinetics, these are not currently FDA-approved or commercially available for clinical use in the United States. The research formulations demonstrated better bioavailability and more sustained plasma levels, but remain investigational 5.
Clinical Implications for This Patient
For a 62-year-old man requiring 30 mg daily of buspirone:
- He would need to take two 15 mg tablets daily (one in morning, one in evening), OR
- Three 10 mg tablets daily (morning, midday, evening)
- The twice-daily regimen may improve adherence in older adults 1
- No dose adjustment is needed based on age alone, though monitoring is appropriate 1
Important caveat: If this patient has hepatic or renal impairment, buspirone dosing should be reduced significantly or avoided, as plasma levels increase 4-13 fold in these conditions 1.