Context: The new meds I bought him did not work all day , either . He remained miserable . So , I did a healing spell for him after the maximum doses had been taken and had not worked . nothing complicated , just my simple but packs the wallop spell .

Question: What may be the reason why the pain medicine was n't working ?
Options:
0. Their pain was too intense .
1. They took too much .
2. They did n't wait long enough for it to work .
3. They did n't take enough of it .
Answer: 0