One option for cleaning pet urine that might be enough is a regular all-purpose anti-bacterial cleaner. Sometimes this is all it takes. Animals with more potent urine, however, will need something much stronger than eliminates the odor completely, not just masks it.
There are certain things you should look for when looking for a product that cleans urine off. First of all, you want to make sure you're not just masking the odor - you want to clean the bacteria off as well. Make sure the cleaner you purchase is an antibacterial cleaner as well as odor remover.

If you have cats, avoid any product that may have ammonia in it. Cat urine and ammonia are similar in smell, so cats will be drawn to it as they prefer to urinate in the same areas, or areas that smell like urine. Instead, choose an enzyme-based product or one designed specifically for cat urine.

The following are some of the best products for cleaning pet urine off your carpet:

 Diaper Pure. This product is actually for soaking cloth diapers, but many consumers swear by it for cleaning up pet urine and removing the odor. If you can locate it, first clean the urine up with an antibacterial wash. Then, make a mixture of one part Diaper Pure and two parts water, the pour it on the spot. Let it soak, then Shop Vac it up or soak it up with a cloth. It should neutralize the smell, and the cleanser will kill the bacteria.
 Urine-Off. Designed specifically for pet odor and urine, Urine-Off is guaranteed to remove urine odor (from any source). This is an attractive option for many people, as it claims to permanently eliminate the urine odor regardless of how old the stain is. You can find this product online and in some stores, like Target.
 Oxy Clean. This multi-purpose cleaner is available in many places and is good for cleaning pet urine and removing the odor as well. You can use it not only on your carpeting, but on your upholstery too in case an accident occurs on the furniture.
 Odo Ban. This product comes in a number of varieties for cleaning pet urine off of your carpet, depending on your needs. There is an odor and stain carpet pre-treater, which you allow to soak for some time before cleaning it up. There is also a Ready-to-Use spray that you just spray on the area.

These are a few of the best products that are designed specifically for cleaning pet urine from the carpeting. You can find these products in most stores or on the internet.