After the first 8 weeks, Zuclopenthixol decanoate maintenance dosing is what?

After the first 8 weeks, Zuclopenthixol decanoate maintenance dosing is what?

• A. 150 mg IM q2 weeks or 300 mg IM q4 weeks
• B. 300 mg IM q2 weeks or 150 mg IM q4 weeks
• C. 100 mg PO daily
• D. 50 mg IM weekly

Answer: (A)

After stabilization on a depot antipsychotic, the goal is to maintain steady therapeutic drug levels with infrequent injections. Zuclopenthixol decanoate releases slowly, so a common maintenance plan is either 150 mg given intramuscularly every 2 weeks or 300 mg every 4 weeks. This keeps monthly exposure in a similar range while balancing efficacy and tolerability. Oral dosing isn’t used for this depot form, and weekly injections aren’t typical for maintenance with this preparation.

After stabilization on a depot antipsychotic, the goal is to maintain steady therapeutic drug levels with infrequent injections. Zuclopenthixol decanoate releases slowly, so a common maintenance plan is either 150 mg given intramuscularly every 2 weeks or 300 mg every 4 weeks. This keeps monthly exposure in a similar range while balancing efficacy and tolerability. Oral dosing isn’t used for this depot form, and weekly injections aren’t typical for maintenance with this preparation.