Amlodipine is generally well tolerated, but it can cause side effects. The most important one to know about is swelling of the ankles and feet, and some effects become more likely at higher doses. (nhs.uk)
12 possible side effects
- Swollen ankles, feet, or legs — one of the most characteristic effects.
- Dizziness — particularly when getting up or when blood pressure falls.
- Headache — often improves as the body adjusts.
- Flushing — a warm or reddened face/neck.
- Palpitations — feeling that the heart is pounding or beating noticeably.
- Tiredness or weakness — fatigue is reported in clinical trials.
- Sleepiness — some people feel unusually drowsy.
- Nausea or stomach discomfort.
- Abdominal pain.
- Constipation or diarrhea.
- Muscle cramps or aches — reported less commonly.
- Gum enlargement (gingival hyperplasia) — uncommon but a recognized adverse effect. (FDA Access Data)
Why ankle swelling happens
Amlodipine widens blood vessels. This can increase pressure in small blood vessels and allow fluid to move into surrounding tissue, producing dependent swelling, especially around the ankles. The FDA data show that edema becomes more common as the dose increases. (FDA Access Data)
If swelling is bothersome, don’t simply stop amlodipine yourself. A doctor may adjust the dose or consider another blood-pressure regimen. Specialist guidance notes that there are several approaches to managing calcium-channel-blocker-related edema. (SPS – Specialist Pharmacy Service)
🚨 When to seek urgent help
Get urgent medical attention for difficulty breathing, swelling of the face/lips/tongue/throat, severe chest pain, fainting, or severe persistent abdominal pain. Rare serious reactions include severe allergic reactions and pancreatitis. (nhs.uk)
Important: Don’t stop amlodipine suddenly without medical advice; controlling blood pressure remains important. (nhs.uk)
If you tell me your amlodipine dose (2.5, 5, or 10 mg) and the side effect you’re experiencing, I can explain how common it is and what usually helps.
