<human>:  How long does it take to develop a new drug?
<bot>: It can take anywhere from 10 to 20 years to develop a new drug. The process starts with identifying a problem that needs to be solved, then testing potential solutions to see which ones are effective. The process continues by testing potential drugs in clinical trials to see if they are safe and effective. If the drug is deemed safe and effective, it can then go through further testing to see if it is effective in treating the condition it was designed to treat.