You can try TSP(available at a home store)This may work if the original finish is older. Test in a small area and be careful-it is strong.
I Have Light Stained Cabinets, How Do I Darken Them Without Stripping/sanding?
If your cabinets are stained with a light stain now, you should be able to stain over them with a darker stain for your desired results.
