DRUG INTERACTIONS. COMBIVENT Inhalation Aerosol has been used concomitantly with other drugs, including sympathomimetic bronchodilators, methylxanthines, and oral and inhaled steroids, commonly used in the treatment of chronic obstructive pulmonary disease.. Aerosol metered-dose inhalers Insert cartridge into metered-dose inhaler, and prime unit before initial use; actuate inhaler toward ground until aerosol cloud is visible, then repeat 3 more times If inhaler has not been used for >3 days, actuate it once before using it again. An Introduction to Dosing With Combivent There is only one standard dosage of Combivent ® (ipratropium and albuterol inhaler), regardless of your weight, age, or other medical conditions.. Over The Counter Combivent Respimat; Combivent Respimat Dosage; The inhaler Combivent Respimat is an inhaler that has the function of a drug dosing.. Combivent Inhaler Dosage - 𝖦𝖾𝗇𝖾𝗋𝗂𝖼 𝗉𝗂𝗅𝗅𝗌 𝗂𝗌 𝗎𝗌𝖾𝖽 𝗐𝗁𝖾𝗇 𝗍𝗋𝖾𝖺𝗍𝗂𝗇𝗀 . The standard recommended dosage of Combivent for treating COPD is one or two inhalations four times a day. This eMedTV page offers more dosing guidelines and also explains how and when to use the inhaler for best results..