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.
For example, if I buy milk today that has a sell-by date of Aug 27, it will be good for 15 days, or a little over two weeks. Or, if there's an expiration date on the carton itself, just follow that.