Imdur (Isosorbide Mononitrate) – What You Need to Know

If you’ve been prescribed Imdur, you’re probably dealing with chest pain caused by reduced blood flow to the heart, also known as angina. Imdur is the brand name for isosorbide mononitrate, a nitrate that relaxes and widens blood vessels so more oxygen gets to the heart. It’s not a fast‑acting rescue pill; it’s meant to be taken every day to prevent attacks.

How to Take Imdur and Typical Dosage

Doctors usually start you on a low dose, often 30 mg once daily, then may increase to 60 mg or 120 mg if you tolerate it well. The key is consistency – take it at the same time each day, with or without food. Swallow the tablet whole; crushing or chewing can cause a sudden drop in blood pressure, which feels like dizziness or fainting.

If you miss a dose, just take the next one at your regular time. Don’t double up because the sudden surge of nitrate can make you feel light‑headed. And because your body can get used to nitrates, doctors may schedule a “nitrate‑free” interval, often overnight, to keep the medication effective.

Common Side Effects and What to Watch For

Most people feel a mild headache – that’s a sign the drug is working. Headaches usually ease after a few days. Other frequent complaints are flushing (red, warm skin), dizziness, and low blood pressure, especially when you stand up quickly. If any of these become severe, call your doctor.

Rare but serious reactions include chest pain that doesn’t go away, rapid heartbeat, or severe skin rash. Seek medical help right away if these happen.

Imdur can interact with other meds, especially other nitrates (like nitroglycerin), certain blood pressure drugs, and erectile dysfunction pills (sildenafil, tadalafil). Mixing can cause a dangerous drop in blood pressure. Always tell your pharmacist about every prescription, over‑the‑counter drug, and supplement you use.

Buying Imdur Safely Online

Many people look for cheaper ways to get Imdur. If you go the online route, stick to licensed pharmacies that require a prescription. Look for clear contact info, a physical address, and a pharmacist‑available chat. Avoid sites that promise “no prescription needed” – they’re likely selling counterfeit pills that can be ineffective or harmful.

Check for price transparency: a reputable site will list the exact cost per tablet, any shipping fees, and insurance options. Before you finalize, compare at least two pharmacies to make sure you’re getting a fair price.

Quick FAQs

Can I drink alcohol with Imdur? A little alcohol is usually okay, but heavy drinking can boost the blood‑pressure‑lowering effect and increase dizziness.

Do I need to stop Imdur before surgery? Yes – tell your surgeon you’re on Imdur. They may ask you to stop a day or two before the procedure to avoid low blood pressure during anesthesia.

What if I feel a sudden headache? Try an over‑the‑counter pain reliever like acetaminophen. If headaches persist, your doctor may adjust the dose.

Imdur works best when you pair it with lifestyle changes: quit smoking, eat a heart‑healthy diet, and stay active. Together, they can dramatically lower the frequency of angina attacks.

Keep this guide handy, and don’t hesitate to reach out to your healthcare provider if anything feels off. Managing angina is a team effort, and the right use of Imdur is a big part of that team.