Segmentation by type distinguishes two chemical families that shape the market’s structural dynamics. Ergot‑derived agents such as bromocriptine and cabergoline account for roughly 30% of global sales; their legacy status and oral dosing convenience sustain niche use despite safety concerns that limit broader adoption. In contrast, non‑ergot dopamine agonists—including pramipexole, ropinirole, and the transdermal patch rotigotine—capture the remaining 70%, driven by superior side‑effect profiles, flexible delivery systems, and strong pipeline support. Within the non‑ergot class, sub‑categories emerge: oral tablets (pramipexole, ropinirole) dominate Parkinson’s disease treatment, while the transdermal patch (rotigotine) holds a strategic position in RLS management due to its steady plasma concentrations. This market taxonomy highlights how type‑based differentiation influences pricing power, formulary placement, and competitive positioning, ultimately dictating each segment’s contribution to the total Dopamine Agonists market.