Indenol, A Drug To Stop Palpitations?

1. A Pounding Heart, and a Pill

Suddenly, your heart starts racing. Anxious feelings well up, and your fingertips turn cold. When you visit a doctor and describe these symptoms, you've probably often heard this:

“Try taking this. It’s Inderal (Propranolol).”

Some people are prescribed this medication for the first time, while others take it regularly before important presentations or exams. But what exactly is this medication, and is it truly necessary for all types of palpitations? Today, we'll talk about Inderal, and the potential of exercise as an alternative that might replace it.

2. The Genesis of Inderal – ‘A Medication Born to Calm the Heart’

In the early 1960s, British pharmacologist Dr. James Black began with the question, "How can we control an excessively fast heartbeat?" He developed beta-blockers, which inhibit the sympathetic nervous system, and the result was Propranolol, which we know as Inderal. This medication emerged as a revolutionary tool in treating angina and hypertension by lowering heart rate and myocardial contractility, and reducing the heart's oxygen consumption. For this achievement, James Black was awarded the Nobel Prize in Physiology or Medicine.

3. Inderal in Korea – When Did It Become ‘A Routine’?

In Korea, Inderal was initially widely used for treating hypertension, arrhythmias, and other heart conditions. However, over time, more precise medications with fewer side effects emerged, and Inderal is no longer a primary prescription for hypertension or arrhythmias. Instead, it is often routinely prescribed for functional autonomic hyperactivity symptoms such as palpitations, anxiety, and tension-related symptoms, even without a clear diagnosis of a specific disease.

“My heart often races.”

“When I get nervous, my face flushes and I feel short of breath.”

When patients describe such symptoms, Inderal is often prescribed without hesitation in most outpatient clinics. It can even be seen as a situation where the prescription often precedes the diagnosis.

4. But It's Also Used for Migraines?

It might be surprising, but Inderal is also an approved medication for migraine prevention. There is ample research and data, to the extent that it is recommended as a first-line prophylactic medication in guidelines from the U.S. FDA and the European Academy of Neurology. The reason is as follows: Migraines are not just simple pain; they are associated with repetitive constriction and dilation of cerebral blood vessels and hyperactivity of sensory nerves. Inderal helps reduce the frequency and intensity of migraines by regulating these vascular responses and inhibiting excessive central nervous system arousal. However, in Korea, Inderal is still not frequently prescribed to migraine patients and is typically used restrictively in consultations with neurology specialists.

5. Is Medication Alone Enough?

So, should we keep taking this medication indefinitely? Should we take this medication habitually, for life, simply because our heart pounds? There's an important point here: Inderal is a medication that 'suppresses' symptoms, not one that 'restores' underlying mechanisms. In fact, many autonomic nervous system symptoms, such as anxious palpitations, panic reactions, and orthostatic tachycardia, are often manageable. And one of the means of recovery currently gaining attention is exercise, especially aerobic exercise.

6. Can Aerobic Exercise Be an Alternative?

Among these, Zone 2 running—exercise that maintains a stable, low heart rate—is known as one of the most effective ways to restore heart rate variability, autonomic balance, and parasympathetic nerve activity. There are indeed numerous reports of people reducing their Inderal intake or being able to manage tense situations without medication after starting exercise. However, since aerobic exercise can be strenuous at first, it's crucial to start with walking or slow jogging at a pace where you can comfortably breathe, based on your Rating of Perceived Exertion (RPE).

7. Strategies for Moving from Suppression to Recovery

Simply stopping medication is not recovery. However, building a body that can manage symptoms without medication – that is the true path to recovery. First, try briefly recording your heart rate, medication times, and a symptom journal. Afterward, you can start an exercise routine and adjust your medication intervals while observing your body's responses. This process may not be fast, but it will surely restore your physical functions.

8. Where Does a Calm Heart Come From?

We often think, "If our heart races, we must suppress it with medication." But what's truly important is not just calming the heart, but enabling it to regulate itself. Through movement, habits, and the recovery of the autonomic nervous system, we can truly regain a calm heart.

#Inderal #Propranolol