Drug used for common cold that can cause stroke is?
**Core Concept**
The question is testing the knowledge of a specific medication used to treat the common cold, which has a rare but serious side effect of causing stroke. This involves the understanding of the pharmacological properties of certain medications and their potential risks.
**Why the Correct Answer is Right**
The correct answer is linked to the vasoconstrictive properties of a specific medication. **Ephedrine**, a sympathomimetic drug, is used to relieve symptoms of the common cold, such as nasal congestion. However, it can cause vasoconstriction, which may lead to an increased risk of stroke, particularly in individuals with pre-existing hypertension or cardiovascular disease. The mechanism involves the stimulation of alpha-adrenergic receptors, leading to the constriction of blood vessels.
**Why Each Wrong Option is Incorrect**
**Option A:** **Pseudoephedrine** is a medication used to relieve nasal congestion, but it is not commonly associated with an increased risk of stroke. It is a less potent vasoconstrictor compared to ephedrine.
**Option B:** **Acetaminophen** is a commonly used analgesic and antipyretic, but it does not have vasoconstrictive properties and is not associated with an increased risk of stroke.
**Option C:** **Ibuprofen** is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain and reduce inflammation. While it may have some vasoconstrictive effects, it is not commonly associated with an increased risk of stroke.
**Clinical Pearl / High-Yield Fact**
When treating patients with the common cold, it is essential to carefully weigh the benefits and risks of medications, particularly those with vasoconstrictive properties. Always consider the patient's medical history, including any pre-existing conditions that may increase the risk of adverse effects.
**Correct Answer:** C.