Oral poliovirus vaccine (OPV) is a vaccine that contains live attenuated strains of poliovirus. It is an effective way to prevent the spread of polio and has been widely used for decades. However, there are also several synonyms for OPV, including oral polio drops, oral polio vaccine drops, and oral polio drops vaccine. These terms are often used interchangeably to refer to the same vaccine. Other similar terms include oral polio vaccine (OPV), oral polio vaccine (Sabin), and trivalent oral polio vaccine (tOPV). Regardless of the terminology used, it is crucial to ensure widespread vaccination to eradicate polio globally.