Hi C..
My son was severely anemic at 9 months (also had absolutely no symptoms) and has been on drops for the last 3 months. I found that he hated the fer-in-sol that the doctor said to get. My pharmasist and I did some research and found another brand, called MGP ferrous sulfate drops (NDC number 60432-057-50 any pharmacy should be able to order this for you with this number). They have the same iron percentage and everything but they have the added benefit of having lime juice (citrus juice aids in iron absorbtion) and they don't stain. To me, they still don't taste great but Evan just sucks them down 3 times a day no problem. I still make sure to nurse him (or give him water) right afterward though to get the taste out of his mouth. About the teeth, Evan's started to change color only recently and I have been assured that as soon as he is off the drops, they will return to white but to keep brushing them since they should get used to the routine anyway. Another trick to keep in mind since you know your son has the problem, is that when they take him off the drops, an easy way to make sure that he gets iron in his diet is to buy a piece of calf liver. Cook it in the oven a bit and then freeze it in a plastic bag. When you are preparing his food, use a grater and grate some liver onto the food. He will not taste it at all and you will know he is still getting iron. Oh, one more thing, I noticed that if I let Evan sit up and just put the dropper in his mouth without restraining him he was better about taking them than lying him down and holding his hands away, it is worth a try! Good luck! Let me know how it goes!