Imdur is classified as a nitrate medication. It works by relaxing and widening blood vessels, facilitating improved blood flow and easing the heart's workload. Imdur is prescribed to help prevent angina attacks (chest pain) but will not alleviate an angina attack that is already occurring. Additionally, Imdur may be utilized for other indications not specified in this medication information.
Avoid using Imdur if you are currently taking Sildenafil, as this combination can lead to severe and potentially life-threatening side effects. Furthermore, you should not use Imdur if you are allergic to isosorbide mononitrate, isosorbide dinitrate (Isordil, Dilatrate, Isochron), or nitroglycerin, or if you exhibit early signs of a heart attack (such as chest discomfort or heaviness, pain radiating to the arm or shoulder, nausea, sweating, or a general sense of unwellness).
Consume Imdur with a minimum of 4 ounces of water or another liquid. Do not crush, chew, or break an extended-release Imdur tablet. It is important to swallow the tablet whole, as breaking it may result in excessive drug release at once.
Imdur may lead to atypical results on certain medical tests. Inform any healthcare provider who treats you that you are taking Imdur. Some factors, such as vomiting, diarrhea, excessive sweating, heart conditions, dialysis, a low-sodium diet, or the use of diuretics (water pills), can cause your blood pressure to drop significantly. Notify your doctor if you are experiencing a prolonged illness characterized by diarrhea or vomiting.
Contact your doctor immediately if you experience serious side effects, including: a rapid, slow, pounding, or irregular heartbeat; a sensation of faintness; difficulty breathing; bluish skin; extreme fatigue; or worsening angina symptoms.