Amlodipine

How to order Amlodipine

1. Find the drug you need on our site.
2. Pick a clinic. See the price.
3. Fill in a short health form.
4. A doctor reads your form.
5. If it is safe for you, they say yes.
6. Your order ships fast to your door.
7. It comes in a plain, sealed box.

Why use us? We compare UK clinics. We show you the price and how fast they ship. We do not sell drugs. We just help you find the best one for you.

Is it safe? Yes. All our clinics are UK-based. A real doctor reads each form. They will not sell to you if it is not safe for you.

Amlodipine on Prescriptsy

Amlodipine is described on Prescriptsy as independent product information.

Here you can understand how online consultation works, what medical checks partner clinics carry out, and which factors matter when comparing providers.

We do not sell medicines directly, but help users compare licensed healthcare partners on price, delivery speed, service quality, and overall trustworthiness.

What is Amlodipine?

Amlodipine is a long-acting calcium channel blocker (specifically, a dihydropyridine) prescribed for the treatment of hypertension and chronic stable angina pectoris.

It is one of the most commonly prescribed medicines in the United Kingdom, with millions of NHS prescriptions dispensed each year.

Its popularity is well deserved: amlodipine provides smooth, 24-hour blood pressure control with once-daily dosing, has a well-established safety profile, and is available as an inexpensive generic medicine.

In my clinical practice, amlodipine is frequently my first choice for patients aged 55 and over, or for patients of Black African or Caribbean family origin, in line with NICE hypertension guidelines.

It is also an excellent second-line addition when an ACE inhibitor or ARB alone does not achieve the blood pressure target.

Active ingredient and pharmacology

Amlodipine besylate (or amlodipine mesilate) works by blocking voltage-dependent L-type calcium channels in vascular smooth muscle cells.

By inhibiting the influx of calcium ions through these channels, amlodipine causes relaxation of the smooth muscle in arterial walls, leading to vasodilation and a reduction in peripheral vascular resistance.

This is the primary mechanism by which blood pressure is lowered.

In angina, the vasodilatory effect reduces cardiac afterload (the pressure the heart must pump against) and also dilates coronary arteries, improving myocardial oxygen supply.

This dual benefit, reducing oxygen demand while improving supply, makes amlodipine effective for both classic exertional angina and vasospastic (Prinzmetal) angina.

Amlodipine has a notably long plasma half-life of approximately 35 to 50 hours, which underpins its once-daily dosing and provides consistent blood pressure reduction throughout the full 24-hour dosing interval, including the critical early morning period when cardiovascular events are most common.

Licensed indications

• Essential hypertension, treatment of high blood pressure in adults and children aged 6 to 17 years.
• Chronic stable angina pectoris, prevention of angina attacks in patients with effort-induced (exertional) angina.
• Vasospastic (Prinzmetal) angina, treatment of angina caused by coronary artery spasm.

Amlodipine in the NICE hypertension pathway

NICE guideline NG136 places amlodipine (or another dihydropyridine calcium channel blocker) as the first-line antihypertensive treatment for:

• Patients aged 55 years and over without type 2 diabetes.
• Patients of Black African or Caribbean family origin at any age.

For patients under 55 (who are not of Black African or Caribbean origin), an ACE inhibitor or ARB is typically first-line, with amlodipine added at step 2 if blood pressure remains above target.

At step 3, a three-drug combination of ACE inhibitor or ARB, calcium channel blocker, and thiazide-like diuretic is recommended.

This stepwise approach is designed to achieve target blood pressure while minimising side effects.

Why calcium channel blockers for older patients?

Older patients tend to have lower renin levels, meaning that their hypertension is less dependent on the renin-angiotensin system and more responsive to vasodilation.

Calcium channel blockers like amlodipine directly relax blood vessels independently of the RAAS pathway, which is why they are often more effective as initial monotherapy in this age group.

The same principle applies to patients of Black African or Caribbean family origin, who also tend to have lower plasma renin activity.

Amlodipine compared with other calcium channel blockers

Several calcium channel blockers are available in the UK. They can be broadly divided into two groups:

Dihydropyridines (vascular-selective)

• Amlodipine: long-acting, once-daily dosing, well-tolerated. The standard choice in UK primary care.
• Nifedipine MR: modified-release formulation. Effective, but some patients experience more peripheral oedema compared with amlodipine.
• Lercanidipine: a newer dihydropyridine that may cause less ankle swelling. Sometimes used when amlodipine-induced oedema is problematic.
• Felodipine: another alternative with similar efficacy and a once-daily dosing regimen.

Non-dihydropyridines (cardiac-selective)

• Diltiazem: acts on both heart and blood vessels. Reduces heart rate and is used for both hypertension and angina. Not recommended in combination with beta-blockers due to the risk of heart block.
• Verapamil: strongest cardiac effects. Used for hypertension, angina, and certain arrhythmias. Must not be combined with beta-blockers.

For most patients with straightforward hypertension, amlodipine is the preferred calcium channel blocker because of its long duration of action, extensive evidence base, once-daily dosing, and low cost.

Clinical evidence for Amlodipine

Amlodipine has one of the strongest evidence bases of any antihypertensive medicine. Key trials include:

• ALLHAT (Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial): a landmark study comparing amlodipine with a thiazide diuretic and an ACE inhibitor. Amlodipine was at least as effective as the comparators in preventing major cardiovascular events.
• ASCOT-BPLA (Anglo-Scandinavian Cardiac Outcomes Trial): demonstrated that an amlodipine-based regimen was superior to an atenolol-based regimen in preventing cardiovascular events and all-cause mortality in hypertensive patients with additional risk factors.
• CAMELOT: showed that amlodipine reduced cardiovascular events in patients with coronary artery disease and normal blood pressure, suggesting benefits beyond blood pressure reduction alone.

These trials, along with numerous meta-analyses, have established amlodipine as one of the most evidence-based cardiovascular medicines available.

Practical advice for patients taking Amlodipine

When to take it

Amlodipine can be taken at any time of day, with or without food. The important thing is consistency: take it at the same time each day.

Some patients prefer the morning; others find bedtime dosing more convenient.

Recent research from the TIME trial suggests that there is no significant difference in cardiovascular outcomes between morning and evening dosing, so choose whichever time helps you remember.

Home blood pressure monitoring

I strongly encourage all my hypertensive patients to monitor their blood pressure at home.

Use a validated upper-arm monitor (the British and Irish Hypertension Society maintains a list of validated devices).

Take readings twice in the morning and twice in the evening for seven days before each clinic review, discarding the first day's readings and averaging the rest.

This gives a much more reliable picture of your blood pressure than occasional clinic measurements.

What if you miss a dose?

If you forget to take your amlodipine, take it as soon as you remember on the same day.

If it is already the next day, skip the missed dose and continue with your usual schedule.

Do not take two doses to make up for the missed one.

Because amlodipine has such a long half-life, missing a single dose is unlikely to cause a dangerous spike in blood pressure.

Managing ankle swelling

Peripheral oedema (ankle swelling) is the most common side effect that leads patients to want to stop amlodipine.

It is caused by preferential dilation of the arterioles leading to the lower limbs, which increases capillary pressure and fluid leakage into the tissues.

Importantly, it is not a sign of heart failure and does not respond to diuretics.

Strategies to manage amlodipine-related ankle swelling include:

• Reducing the amlodipine dose and adding another antihypertensive to maintain blood pressure control.
• Combining amlodipine with an ACE inhibitor or ARB, which can partially offset the oedema by dilating the venous side of the circulation.
• Elevating the legs when sitting or lying down.
• If swelling is intolerable, switching to an alternative such as lercanidipine, which may cause less oedema.

Obtaining Amlodipine in the United Kingdom

Amlodipine is a prescription-only medicine, widely available as a generic. It is one of the most frequently prescribed items on the NHS and is very inexpensive.

The standard NHS prescription charge is £9.90 per item in England, with prescriptions free of charge in Scotland, Wales, and Northern Ireland.

Your GP will typically prescribe generic amlodipine unless there is a specific reason to use a branded product.

Regular follow-up is important. After starting or changing the dose, your GP will review your blood pressure and check for side effects within four weeks.

Once stable, annual reviews are standard and should include a check of blood pressure, cardiovascular risk factors, and a review of overall medication.

Storage

• Store amlodipine tablets below 30 degrees Celsius.
• Keep in the original packaging to protect from light and moisture.
• Do not use after the expiry date on the packaging.
• Keep out of the sight and reach of children.

Frequently asked questions

Can I eat grapefruit while taking amlodipine?

Grapefruit and grapefruit juice can increase the blood levels of amlodipine by inhibiting the CYP3A4 enzyme in the gut wall.

The interaction is generally modest with amlodipine (unlike some other calcium channel blockers such as felodipine), but it is sensible to consume grapefruit in moderation and be aware of potential increased blood pressure-lowering effects.

If you regularly consume large amounts of grapefruit, mention this to your GP.

Does amlodipine cause weight gain?

Amlodipine is not typically associated with significant weight gain.

Some patients notice a small increase on the scales, which is often related to fluid retention (peripheral oedema) rather than true fat gain.

If you experience noticeable weight changes, discuss this with your GP to rule out other causes.

Can I drink alcohol while taking amlodipine?

Moderate alcohol consumption is generally acceptable, but alcohol can enhance the blood pressure-lowering effect of amlodipine, which may cause dizziness or lightheadedness.

Stay within the Chief Medical Officers' guideline of no more than 14 units per week, particularly when starting treatment or after a dose increase.

Is amlodipine safe in pregnancy?

Amlodipine is not recommended during pregnancy due to limited safety data. If you are pregnant, planning a pregnancy, or become pregnant while taking amlodipine, contact your GP promptly.

Alternative antihypertensives with established safety profiles in pregnancy (such as labetalol, nifedipine, or methyldopa) are preferred. Amlodipine should also be used with caution during breastfeeding.

Can I stop taking amlodipine suddenly?

While amlodipine does not cause a rebound blood pressure surge upon discontinuation (unlike some other cardiovascular medicines), stopping treatment will allow your blood pressure to rise again.

Do not stop taking amlodipine without discussing it with your GP first. If a change of medication is needed, your doctor will manage the transition safely.

Sources

• EMC, Electronic Medicines Compendium (SmPC)
• BNF, British National Formulary
• NICE NG136, Hypertension in adults
• NHS, High blood pressure
• British and Irish Hypertension Society
• NHS, Amlodipine