Anonymous

Likely it won't be exact, but the math is correct.

Anonymous

In theory, yes. In reality no. There is no way to cut a tablet perfectly in half. In an experiment, you would need to reweigh the two halves. Probably both will be less than 0.025 since you will create some dust that will be lost.

Anonymous

if you make a perfect cut and the mass is evenly distributed, yes. Otherwise, it will probably be close but not exactly 0.025.

Anonymous

Yes, half of 0.05 mg tablet would give 0.025 mg of the active ingredient in the drug.