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kathleen_gray2026-04-17

I've been prescribed Diltiazem ER 360mg for my high blood pressure and angina. It's supposed to release the medicine over 24 hours, which is convenient for once-daily dosing. I want to know if anyone else is taking this and what side effects they've experienced. My doctor warned me about serious ones like allergic reactions and liver problems, but I'm curious about more common side effects too. The FDA has a whole list of side effects that can occur, some of which can be severe. Is it only me, or are there many side effects to be wary of?

1 min read
last active 4/17/2026
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Comments (7)

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pamela_nelson4/15/2026

I started feeling really tired after taking this medication, like debilitating fatigue. I thought I was getting sick, but my doctor said it was probably the side effect of the medication. It resolved on its own after a few days.

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lauren_knight4/15/2026

I had to stop taking Diltiazem because it caused a slow heartbeat for me. My doctor switched me to a different medication, and I haven't had any issues since. It's important to listen to your body and consult your doctor if something doesn't feel right.

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larry_gardner4/15/2026

I've had more headaches than usual since starting Diltiazem. I just take some over-the-counter pain relievers and keep going about my day. It's not the worst side effect in the world, but still annoying.

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sean_williams4/16/2026

I was surprised by how much this medication helped with my chest pain. It's been life-changing. Side effects were manageable, and my doctor was great about monitoring me.

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william_owens4/16/2026

I've noticed that sometimes the dizziness can be pretty bad and I would recommend not driving while on it if you haven't adjusted to it yet.

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william_webb4/16/2026

It's crazy how many people don't report side effects to their doctors. If you're experiencing something unusual, even if it seems minor, let your doctor know. They can help you manage it or adjust your medication if needed.

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sean_chen4/16/2026

I've been on Diltiazem for a few months now, and the only side effect I've had is occasional dizziness. It's manageable, but I wish I had known about it before starting. Always read the leaflet carefully so you know what to expect.