I agree. She would need just over the 1/3 and under 1/2 pill. Maybe shave a bit of the half, it will be hard to get it exact. She needs about 187.5mg with her weight.Do the math, but I think you could probably give her 1/3 to 1/2 a tablet twice a day. But please, someone *please* double check. If she had been 400 grams, I would have been much harder, still doable, but harder.