Son just had first and second shots (one week apart) of Invega Sustenna. He seem really suffered from the shots. Doc said it will take 4 to 6 week. I want to wait and see but don’t want him to get the next shot (in a month) if it does not work.
For me it took months but I love the med now, I would give it more time for it to work to be honest.
I was on invega sustenna for three months and it didn’t work for me, I was anxious and manic all the time.
Speaking from personal experience, it took me about three months to start adjusting to Invega Sustenna.
I’ve been on the 234mg injection, once a month. It took between 5 - 8 months for the medication to work and all the positive symptoms to subside. The only thing I have to figure out is how to deal with the negative symptoms.