I have two bottles of Junior Ibuprofen on the go, one Calprofen branded and one Sainsbury's own brand. When giving it to my one year old I noticed that each bottle has a different dosage for him. The own brand one says 5ml three times a day for ages 1 to 4 and the Calprofen brand one says 2.5ml three to four times a day for ages 1-2. They are the same strength (100mg/5ml). What's going on here? Have I been overdosing my one year old on the Sainsbury's dose?