Does anyone know why Tylenol Extra Strength Immodium A-D caplets are not being sold in drugstores lately?

I've been to Walgreen's, CVS, Costco, etc. and they are all out. Are they being recalled, discontinued, and will they come back or not? I've had to but the generic Immodium A-D caplets from Walgreen's because I don't want to get in liquid form. I don't know if they work as well though.