Arpamyl

Common Use

Arpamyl contains the active ingredient verapamil, which belongs to a class of medications called calcium channel blockers—in simple terms, it works by relaxing and widening the blood vessels, which makes it easier for the heart to pump blood. It also affects the electrical impulses that control the heartbeat.

Here’s how it works in plain language: Calcium is a mineral that triggers the contraction (tightening) of smooth muscles, including those in the walls of arteries and the heart itself. Arpamyl blocks calcium from entering certain cells, which causes:

Relaxation of arterial muscles – blood vessels widen (vasodilation)

Improved oxygen delivery to the heart muscle (myocardium)

Decreased total peripheral resistance – meaning the heart doesn’t have to work as hard to push blood through the body

Lower blood pressure (reduced systemic blood pressure and afterload)

In addition to lowering blood pressure, Arpamyl slows the conduction of electrical impulses through the heart that control the coordination of contraction. This helps:

Slow down the heart rate in people with certain types of irregular heartbeats

Control abnormal heart rhythms (arrhythmias)

Arpamyl is used to treat:

Hypertension (high blood pressure) – by lowering blood pressure, it reduces the risk of stroke, heart attack, and kidney problems

Angina (chest pain) – including chronic stable angina and vasospastic angina (Prinzmetal’s angina)

Certain types of irregular heartbeats (arrhythmias) – such as supraventricular tachycardia, atrial fibrillation, and atrial flutter

Dosage and Direction

Take Arpamyl orally with or without food. The daily dose typically ranges from 180 mg to 480 mg, which may be taken as a single dose or divided into two or three intakes, depending on your condition and how your doctor prescribes it.

Take the medication exactly as prescribed by your doctor. Never exceed the dose recommended to you—taking more than prescribed can increase the risk of serious side effects.

Precautions

While taking Arpamyl, keep the following in mind:

Avoid alcoholic beverages – alcohol can worsen side effects such as drowsiness and dizziness

Avoid grapefruit and grapefruit juice – grapefruit can interact with the components of this medication, increasing its levels in your blood and raising the risk of side effects

Do not get up too fast from a sitting or lying position. Stand up slowly to avoid feeling dizzy or lightheaded (this is called orthostatic hypotension)

Contraindications

Arpamyl is contraindicated—meaning you should not take it—in patients with:

Hypersensitivity (allergy) to verapamil or any of its components

Severe left ventricular dysfunction (significant weakness of the heart’s main pumping chamber)

Hypotension – systolic blood pressure less than 90 mm Hg

Cardiogenic shock – a condition where the heart suddenly cannot pump enough blood

Sick sinus syndrome – a problem with the heart’s natural pacemaker (unless a functioning artificial pacemaker is in place)

Atrioventricular (AV) block degree II or III – a type of heart block (unless a functioning artificial pacemaker is in place)

Atrial flutter or atrial fibrillation with an accessory bypass tract (such as Wolff-Parkinson-White syndrome or Lown-Ganong-Levine syndrome)

Possible Side Effects

Arpamyl is usually well tolerated, but side effects can occur.

Most common side effects may include:

Dizziness

Weakness or fainting

Swelling of the lower extremities (edema) – particularly in the ankles and feet

Rash

Headache

Constipation – this is a common side effect with verapamil

Less common side effects may include:

Jaundice (yellowing of the skin or eyes)

Swelling (fluid retention)

Difficulty breathing

Rashes

If you experience severe side effects such as difficulty breathing, fainting, or signs of an allergic reaction, seek immediate medical attention.

Drug Interactions

Arpamyl can interact with many medications. It is important to inform your doctor about all medications you are taking, including over-the-counter products and herbal supplements.

Key interactions:

Alcohol – Arpamyl inhibits the elimination of alcohol, increasing its effects

Doxorubicin – Arpamyl may increase the efficacy and toxicity of this chemotherapy drug

Cyclophosphamide, vincristine, procarbazine, prednisone (COPP) and vindesine, adriamycin, cisplatin (VAC) – these cytotoxic drug regimens may decrease absorption of Arpamyl

Aspirin – co-administration may increase the risk of bleeding in rare cases

Digoxin – Arpamyl can increase serum digoxin levels by 50% to 75% during the first week of therapy, which can lead to digitalis toxicity (serious heart rhythm problems). Correction of digoxin dosage is essential

Oral antihypertensive agents – taking them together can result in additive blood-pressure-lowering effects

Disopyramide, flecainide, quinidine – may increase the risk of heart rhythm problems

Phenobarbital – may reduce the effectiveness of Arpamyl

Cyclosporin – Arpamyl may increase cyclosporin levels

Lithium – Arpamyl may increase lithium levels, leading to toxicity

Arpamyl may also cause mildly abnormal results on certain liver function tests—your doctor will monitor this.

Missed Dose

If you forget to take a dose, take it as soon as you remember—unless it is almost time for your next dose. If that’s the case, skip the missed dose and return to your regular schedule. Do not take a double dose to make up for a missed one.

Overdose

If you experience slow heartbeat and fainting, these may be symptoms of an Arpamyl overdose. If you suspect that too much of the medication has been taken, seek immediate medical attention.

Storage

Store Arpamyl at room temperature between 15–30°C (59–86°F), away from light, moisture, and out of reach of children and pets.

Disclaimer

We provide only general information about medications, which does not cover all directions, possible drug interactions, or precautions. Information on this site cannot be used for self-treatment or self-diagnosis. Any specific instructions for a particular patient should be agreed upon with your healthcare adviser or the doctor in charge of your case. We disclaim reliability of this information and any mistakes it may contain. We are not responsible for any direct, indirect, special, or other indirect damage as a result of any use of the information on this site, nor for the consequences of self-treatment.

About Our Service Cydoctors.com is an online pharmacy based right here in Cyprus. We know that managing high blood pressure, angina, or heart rhythm disorders requires consistency and reliable access to your medication—so we’ve made our service straightforward, dependable, and built with your convenience in mind. Because we’re local to the island, we can arrange delivery in the shortest possible time. For our customers in Nicosia, Limassol, and Paphos, we’re pleased to offer overnight delivery, so your Arpamyl can be with you by the next day, helping you keep your heart rhythm steady and your blood pressure under control without any fuss.