Drug name: Primidone
Drug class: Barbituate

Drug name Mnemonics: Primadonna is one of the Barbie-girls group for seizures

Mech.: Primidone metabolized into Phenobarbital to cause an effect
Mech. mnemonics: The Primidone is actually metaphosized (metabolized) into barbed wire to cause those beautiful amazing effects that took the breath away from those bad guys making them quiet and thus unable to cause explosives (seizures

Picmonic: Primidone is actually walking on Barbed Wire (Barbituates) to have those smooth amazing moves

Primidone = Primadona

Primidone calms the bad guys with their breathless beauty (but in fact they're walking on barbed wire)