I would switch to a high strain high count probiotic that has over 10 strains. Threelac has only 3 strains and is like 3 billion per pill. We don’t promote threelac on the forum because for the same amount of money, you could get a way better probiotic.
It’s important to rotate probiotics to get a wide variety of flora in the gut, and you can get a natural form of it from both greek yogurt and kefir.
I would check out Megaflora, renew life, and HMF neuro as ones to compare threelac to and you should determine which ones seem like an upgrade.