You can accuse antivax by putting too much meaning into the word “experimental” but you shouldn't fall for their attempts to redefine the meaning of this word a

You can accuse antivax by putting too much meaning into the word “experimental” but you shouldn't fall for their attempts to redefine the meaning of this word and argue from that position. Experimental can be just something that is used in an experiment or trial. You can take a substance that is known as completely safe (NaCl in small quantities, for example) and then experiment on it. It will be called “study drug” for the purposes of research. The regulators actually don't use the term “experimental drug” but colloquially experiment is just another word for a test or trial.