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Cinnarizine Contraindications: What You Must Know Before Taking It

When you’re dealing with vertigo or motion sickness, cinnarizine, a common antihistamine used to treat dizziness and nausea, often prescribed for inner ear disorders. Also known as Stugeron, it helps many people feel steady again—but it’s not safe for everyone. If you have liver problems, Parkinson’s disease, or a history of depression, cinnarizine could make things worse, not better. It doesn’t just cause drowsiness—it can trigger movement disorders, slow your heart rate, or even worsen mental health symptoms in people already at risk.

One major red flag is Parkinson’s disease, a neurological condition affecting movement, where cinnarizine can block dopamine receptors and worsen tremors or stiffness. People with this condition should avoid it unless a neurologist specifically says it’s okay. Another hidden risk is liver impairment, because cinnarizine is processed by the liver, and poor function can cause the drug to build up to toxic levels. If you’ve been told your liver enzymes are high or you have cirrhosis, ask your doctor for a safer alternative. Even more critical are drug interactions, especially with other central nervous system depressants like benzodiazepines, opioids, or alcohol. Mixing cinnarizine with these can lead to dangerous breathing problems or extreme sedation.

Some people don’t realize cinnarizine can also affect mood. There are documented cases where patients with untreated depression or bipolar disorder had worsening symptoms after starting it. It’s not common, but it’s serious enough that doctors should screen for mental health history before prescribing. And if you’re over 65, your body clears drugs slower—so even standard doses can cause confusion, falls, or low blood pressure. This isn’t just about avoiding side effects; it’s about preventing hospital visits.

You’ll find posts here that show you how to read medication guides to spot hidden dangers, what to do if you’re on multiple drugs, and how to tell if a side effect is normal or a warning sign. We’ll also cover how generic versions might behave differently, how to recognize early signs of overdose, and why some people react badly even when they’ve taken it before without issues. This isn’t theoretical—it’s based on real patient reports and clinical data. If you’ve been told to take cinnarizine and you’re unsure, the answers you need are below.