Flunarizine Side Effects – Quick Guide

If you’ve been prescribed Flunarizine for migraine prevention or vertigo, you probably wonder what it might do to your body. Flunarizine is a calcium‑channel blocker that helps calm overactive nerves in the brain. While many people take it without trouble, the drug can cause a range of reactions—from mild sleepiness to more serious mood changes.

Common Side Effects

The most frequent complaints are drowsiness and fatigue. You might feel like taking a nap after each dose or notice that you’re slower to react than usual. Weight gain is another common issue; the medicine can increase appetite, so keep an eye on your diet if you notice extra pounds.

Some users report dry mouth, constipation, or mild muscle cramps. These symptoms are usually easy to manage with plenty of water, fiber‑rich foods, and gentle stretching. Mood shifts such as low mood or irritability can also appear, especially if you’re already prone to depression.

When to Seek Help

Rare but important side effects include signs of Parkinson‑like movement problems—tremors, stiffness, or slow walking. If any of these start, stop the drug and call your doctor right away. Severe allergic reactions (rash, itching, swelling of the face or throat) need immediate medical attention.

Blood tests may be recommended to check liver function, because in very rare cases Flunarizine can affect liver enzymes. If you feel persistent nausea, yellowing of the skin, or dark urine, let your doctor know promptly.

Always tell your healthcare provider about other medicines you’re taking. Flunarizine can interact with antidepressants, antipsychotics, and other heart drugs, raising the risk of side effects. A quick medication review helps keep everything safe.

To reduce unwanted effects, take Flunarizine at bedtime if drowsiness is a problem, stay hydrated, and maintain regular exercise to counteract weight gain. Keep a simple diary of any new symptoms—this makes it easier for your doctor to spot patterns and adjust the dose if needed.

Bottom line: most people tolerate Flunarizine well, but staying aware of how your body reacts can prevent surprises. Talk openly with your clinician, report anything out of the ordinary, and follow practical tips like bedtime dosing and healthy habits. With the right approach, you can keep migraines at bay while minimizing side effects.