105462-24-6 115436-72-1 Actonel Monosodium (1-hydroxy-2-(3-pyridinyl)ethylidene)bisphosphonate NE 58095 Phosphonic acid, (1-hydroxy-2-(3-pyridinyl)ethylidene)bis-, monosodium salt Risedronate sodium Risedronate sodium [USAN] Risedronic acid monosodium salt Sodium risedronate Sodium trihydrogen (1-hydroxy-2-(3-pyridyl)ethylidene)diphosphonate