What is the required condition before starting Invega Trinza?

Before initiating treatment with Invega Trinza, it is essential that the patient has previously been stabilized on Invega Sustenna, typically for at least four months. This requirement ensures that the patient has adequately responded to Sustenna and demonstrates tolerance to the medication, allowing for a smooth transition to the longer-acting injectable formulation of Invega Trinza. This change is crucial as it helps to confirm that the patient can manage the treatment effectively and reduces the risk of adverse reactions or withdrawal symptoms associated with changing from one psychotropic medication to another.

The other options suggest different prerequisites that do not align with the established guidelines for the use of Invega Trinza, which focus on the prior use of Sustenna specifically.