Colds and flu are viral; antibiotics do not act on viruses.
Unnecessary antibiotics do not improve viral infections but can cause side effects and antimicrobial resistance. Use antibiotics only when prescribed, exactly as directed, and do not share them. Do not keep leftovers for a future illness.
Medical principle
Even non-prescription medicines can cause side effects and interactions. Medicine selection should consider the likely cause, age, pregnancy, liver and kidney disease, a history of stomach ulcers and other medicines.
Practical steps that may help
- Keep the names, doses and timing of all medicines and supplements on your phone or on paper.
- Check for products containing the same active ingredient to avoid unintended duplicate doses.
- Do not take someone else’s antibiotics, sedatives or other medicines; use medicines exactly as directed.
When should you seek medical care?
Reduced awareness, seizures, breathlessness, swelling of the face or throat, a sudden very severe headache, fever with neck stiffness, or severe unusual pain require immediate action.
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