Complex sentence: Propylhexedrine has a lower potential for abuse than other stimulants, partially because methods of its use are limited, unlike more commonly abused amphetamine, methamphetamine and methylphenidate.
Split into simpler sentences: Propylhexedrine has a lower potential for abuse than other stimulants. This is partially because methods of its use are limited, unlike more commonly abused amphetamine, methamphetamine and methylphenidate.