What is the shelf life of Paracetamol, Caffeine and Chlorpheniramine Maleate Tablets?
Dec 09, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
The shelf life of acetaminophen, caffeine, and chlorpheniramine tablets is usually 24 months; however, for some products manufactured by certain companies, it may be 36 months. The specific expiration date should be based on the information indicated on the drug packaging. If dizziness, nausea, vomiting, or other discomfort occurs after taking expired medication, seek medical attention promptly. The shelf life is determined by the manufacturer based on stability testing.
The shelf life of acetaminophen-caffeine-combination antiallergic tablets is usually 24 months; however, some manufacturers may label it as 36 months. Please refer to the expiration date indicated on the drug packaging for accurate information. If you experience discomfort such as dizziness, nausea, or vomiting after taking the medication, seek medical attention promptly.
The shelf life of a medication is determined by the manufacturer based on stability testing and is significantly affected by storage conditions. The medicine should be stored sealed in a cool, dry place, away from direct sunlight, high temperatures, and humid environments, as improper storage may accelerate ingredient degradation and shorten its effective lifespan.
Expired acetaminophen-caffeine-combination antiallergic tablets may have reduced active ingredient content, which cannot guarantee therapeutic effectiveness, and may also cause adverse reactions due to chemical changes in the components. Additionally, even within the labeled shelf life, if the packaging is damaged or the tablet becomes damp, the medication may deteriorate and should not be used.
Store the medication out of reach of children to prevent accidental ingestion. Always carefully check the expiration date on the packaging before use. If the medicine shows discoloration, spots, unusual odor, or tablet disintegration, it should be discarded immediately and not consumed, regardless of whether it has expired.
