Common Hypersensitivity reaction, Gastrointestinal irritation.

Expert advice for Alkapyrin Suspension
• It is advised to take the drug after meals and with plenty of plain water or juice to avoid stomach upset. 
• Inform your doctor if you have severe kidney disorders e.g., decreased urine output, sodium-restricted diet, high sodium levels in blood 
• Seek medical attention if you have a difficulty in breathing after taking the drug, or have low calcium levels, high blood pressure, heart problems (e.g., irregular heartbeat, heart failure), kidney disease, swollen ankles/legs/feet due to  water retention (peripheral edema).
• Tell your doctor if you are pregnant, planning to become pregnant or are breastfeeding.
• Should not be given to patients allergic to disodium hydrogen citrate or any of its ingredients.
• Should not be given to patients with history of high blood potassium levels, congestive heart failure, heart disease or severe kidney problems, or in case if you are dehydrated.
• Pregnant and breastfeeding women should avoid the intake of disodium hydrogen citrate.
• Patients suffering from severe bacterial infection should also avoid the intake of disodium hydrogen citrate.