An AB rating means that the FDA has determined that a generic medication is equivalent to a brand-name medication. All of the generic versions of Detrol LA currently available have an AB rating, meaning they should be equivalent to the brand-name product.
The general rule of thumb is that canned food has a shelf life of at least two years from the date of purchase. It is recommended that all canned food be stored in moderate temperatures (75Â° F and below). Many canned products now have a for best quality use by date stamped on the top or bottom of the can.
Best Canned Foods that Have the Longest Shelf life. Canned foods will last you a long time and even easy on the budget. If you store them properly without any damage they will last long. When it comes to consuming canned foods, common sense is required.