Buckleyâs complete syrup 250ml gives cold and flu symptoms a taste of their own medicine. Get fast-acting all-in-one relief from dry cough, sore throat pain, fever and chills, nasal and sinus congestion, headache, and minor aches and pains. To be sure this product is right for you please read and follow the label. The buckleyâs company, mississauga, ont. L5n 6l4. Â© 2017 gsk group of companies or its licensor. Product information is provided by the product vendor. This content is a summary for informational purposes only and does not have all possible information about this product. It should not be used as a substitute for advice from health care professionals, as this information alone does not assure that this product is safe, effective, or appropriate for you. For more detailed information on this product, including reported and possible side effects and contraindications, refer to the manufacturer’s monograph, or speak with a health care provider.