Adverse reactions refer to unexpected and undesired responses or outcomes that occur as a result of exposure to a certain substance, intervention, or treatment. These reactions can occur when a person is exposed to medications, vaccines, chemicals, food, environmental factors, or any other foreign agents that might trigger an adverse response in the body.
Adverse reactions can manifest in various ways, ranging from mild discomforts to severe and life-threatening conditions. Common examples include allergic reactions such as skin rashes, itching, or hives, gastrointestinal disturbances like nausea, vomiting, or diarrhea, and neurological symptoms like dizziness, headaches, or confusion. In more severe cases, adverse reactions can lead to anaphylaxis, organ damage, or death.
It is worth noting that adverse reactions can vary between individuals due to factors such as age, genetics, pre-existing medical conditions, or concurrent medication use. Therefore, it is crucial for healthcare professionals to carefully monitor patients for potential adverse reactions and promptly address any arising symptoms.
Adverse reactions can be reported and evaluated through adverse event reporting systems, which play a crucial role in identifying potential safety concerns, improving the understanding of risks associated with certain substances, and enhancing consumer protection. Such reporting systems contribute to ensuring the development and administration of safer and more effective interventions and treatments.
