Drops and pills were found to be fairly similar. Drops are more for the people that have problems swallowing a pill and thus take the drops.

If the drops aren’t a hassle and work for you? Then keep going with them or switch to pills if you’d prefer that. In terms of how the act, speed and half life: fairly equal.

This is the article I found.
https://www.ncbi.nlm.nih.gov/m/pubmed/11192143/