Tilade (nedocromil sodium) is an inhaled anti-inflammatory agent for the preventive management of asthma. Nedocromil sodium is a pyranoquinoline with the chemical name 4H-Pyrano[3,2-g]quinoline-2,8-dicarboxylic acid, 9-ethyl-6,9-dihydro-4,6-dioxo-10-propyl-, disodium salt, and it has a molecular weight of 415.3. The empirical formula is C₁₉H₁₅NNa₂O₇. Nedocromil sodium, a yellow powder, is soluble in water. The chemical structure is:

Chemical Class: Pyranoquinoline

Tilade Inhaler (nedocromil sodium inhalation aerosol) is a pressurized metered-dose aerosol suspension for oral inhalation containing micronized nedocromil sodium and sorbitan trioleate, as well as dichlorotetrafluoroethane and dichlorodifluoromethane as propellants. Each Tilade canister contains 210 mg nedocromil sodium. Each actuation meters 2.00 mg nedocromil sodium from the valve and delivers 1.75 mg nedocromil sodium from the mouthpiece. Each 16.2 g canister provides at least 104 metered actuations. After 104 metered actuations, the amount delivered per actuation may not be consistent and the unit should be discarded.

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