Why would you choose engineering in the first place ? Do you just want to do engineering, no matter what the stream is ?
Choose/pursue a career/discipline that you enjoy. Pursue it especially when it's something you've always wanted to do.
Chemical engineering is basically the design of plants (maybe also machinery) for chemical processing. You will do some chemistry (basic) but you won't have to do intense chemistry.
As a chemical engineer, you won't be employed to design new drugs (chemist's job) but you will play a part in design the processing of the drug in mass amounts.