What is a common adverse effect associated with Aspirin (ASA)?

Aspirin, also known as acetylsalicylic acid, is an anti-inflammatory medication commonly used for pain relief, anti-inflammatory purposes, and its antipyretic effect. One notable adverse effect associated with aspirin use is tinnitus, which is characterized by ringing or buzzing in the ears. This occurs because aspirin can affect the auditory system, particularly at higher doses, leading to increased sensitivity or disturbances in ear function.

Tinnitus is often dose-dependent and may arise after prolonged use or higher administration of the medication. It's important for those taking aspirin, especially for chronic conditions, to be aware of this potential side effect, as it may indicate that the dose is too high or that the individual is particularly sensitive to the medication.

The other options—drowsiness, nervousness, and rash—are less commonly associated with aspirin specifically. While drowsiness and nervousness can be side effects of various medications, they are not typical reactions to aspirin. Similarly, while aspirin can cause gastrointestinal upset or bleeding, skin rash is not one of the most common adverse effects linked to its use. Understanding these distinctions can help in effectively managing and identifying potential adverse reactions in patients receiving aspirin therapy.