I use solar drops on the lizards I rescue that have symptoms of mbd, but as a supplement only. Basking bulbs are usually UVA only and that stimulates appetite, as well as providing heat. UVB light is absolutely necessary for any diurnal (active during the day) critter that requires sunlight to absorb calcium.
Here's an excellent piece on reptile lighting. I especially like knowing how much UV gets through the different housing materials:
Reptile Lighting