Fluphenazine decanoate dosing?

Fluphenazine decanoate dosing?

• A. 12.5-50 mg
• B. 50-200 mg or 10-15x PO dose
• C. 5-25 mg
• D. 100-300 mg

Answer: (B)

Fluphenazine decanoate is a long-acting injectable that acts as a depot, releasing medication over weeks. Because of this depot effect, the dosing is based on a conversion from the daily oral dose, using a multiplier to reach therapeutic levels. The standard approach is to give roughly 10–15 times the patient’s daily oral dose, with practical dosing in the range of about 50–200 mg every 2–3 weeks after an initial loading period. For example, a patient taking 5 mg of oral fluphenazine daily would be started on roughly 50–75 mg of the decanoate every 2–3 weeks. This range and conversion reflect the need to achieve steady, therapeutic levels from a systemic depot. The other options fall outside this established range or the conversion method, which is why they’re not appropriate.

Fluphenazine decanoate is a long-acting injectable that acts as a depot, releasing medication over weeks. Because of this depot effect, the dosing is based on a conversion from the daily oral dose, using a multiplier to reach therapeutic levels. The standard approach is to give roughly 10–15 times the patient’s daily oral dose, with practical dosing in the range of about 50–200 mg every 2–3 weeks after an initial loading period. For example, a patient taking 5 mg of oral fluphenazine daily would be started on roughly 50–75 mg of the decanoate every 2–3 weeks. This range and conversion reflect the need to achieve steady, therapeutic levels from a systemic depot. The other options fall outside this established range or the conversion method, which is why they’re not appropriate.