Judgment of the Court (Fourth Chamber) of 25 March 2021.#Arrow Group ApS and Arrow Generics Ltd v European Commission.#Appeal – Competition – Agreements, decisions and concerted practices – Pharmaceutical products – Market for antidepressant medicines (citalopram) – Settlement agreements concerning process patents concluded between a manufacturer of originator medicines holding those patents and manufacturers of generic medicines – Article 101 TFEU – Potential competition – Restriction by object – Characterisation – Calculation of the amount of the fine.#Case C-601/16 P.