Pregabalin/Lyrica reclassified to a class C drug Pregabalin powder - also known by the brand name Lyrica, or the street name bud - is an anti-epileptic drug also used to relieve chronic pain. Northern Ireland has the highest prescription rate for pregabalin in the UK. It is illegal to have class C drugs without a prescription and illegal to supply or sell them to others.There will also be stro…