BSP stands for broad spectrum. Like all other Vetark vitamins these are high potency vitamin drops so that only a small amount is needed. They are ideal for medicating water for birds which wonŽt accept vitamins any other way, particularly suited to the softbills but fine for any bird. The level of vitamin A is high so even psittacines will do well on them. All of the small seed eaters are easily supplemented with BSP via the water. Palatability as with all Vetark products is good and effective levels are taken. Several very successful budgerigar breeders are using the product to very good effect (to the extent of sending unsolicited testimonials). Some owners like to use water soluble products only once a week, with the ŽaverageŽ suspicious bird this means that on those days the bird may simply not drink. When you use BSP we recommend that you do so every day.