Dose calculator · Paracetamol (acetaminophen)

Pyrigesic dose calculator by weight

Every weight from 5 to 40 kg, in milligrams and in millilitres according to the strength of your bottle. Fixed table from the AEPap dosing guide — no AI. Always check the strength printed on your own bottle: it changes by country and by presentation.

Medicine (generic or brand)

Weight (kg)

Age

Or type what your bottle says (optional)

Pyrigesic 25 mg/ml or Crocin 100 mg/ml: not the same thing

Not every bottle of paracetamol (acetaminophen) is the same. Pyrigesic has 25 mg/ml; Crocin, sold in the same country, has 100 mg/ml. With the same millilitres, one gives 4 times the dose of the other.

For a 10 kg child (150 mg):

Pyrigesic 25 mg/ml (syrup 125 mg/5 ml)6 ml
Crocin 100 mg/ml (drops 100 mg/ml)1.5 ml

⚠️ Before measuring, look at how many mg per ml the box says. It is the most common way to get a dose wrong at home.

Every 4–6 hours, and never more doses in 24 hours than the last column says.

Weight	Dose	syrup 125 mg/5 ml	Max. / 24 h
5 kg	75 mg	3 ml	4
6 kg	90 mg	3.6 ml	4
7 kg	105 mg	4.2 ml	4
8 kg	120 mg	4.8 ml	4
9 kg	135 mg	5.4 ml	4
10 kg	150 mg	6 ml	4
11 kg	165 mg	6.6 ml	4
12 kg	180 mg	7.2 ml	4
13 kg	195 mg	7.8 ml	4
14 kg	210 mg	8.4 ml	4
15 kg	225 mg	9 ml	4
16 kg	240 mg	9.6 ml	4
17 kg	255 mg	10.2 ml	4
18 kg	270 mg	10.8 ml	4
19 kg	285 mg	11.4 ml	4
20 kg	300 mg	12 ml	4
21 kg	315 mg	12.6 ml	4
22 kg	330 mg	13.2 ml	4
23 kg	345 mg	13.8 ml	4
24 kg	360 mg	14.4 ml	4
25 kg	375 mg	15 ml	4
26 kg	390 mg	15.6 ml	4
27 kg	405 mg	16.2 ml	4
28 kg	420 mg	16.8 ml	4
29 kg	435 mg	17.4 ml	4
30 kg	450 mg	18 ml	4
31 kg	465 mg	18.6 ml	4
32 kg	480 mg	19.2 ml	4
33 kg	495 mg	19.8 ml	4
34 kg	510 mg	20.4 ml	4
35 kg	525 mg	21 ml	4
36 kg	540 mg	21.6 ml	4
37 kg	555 mg	22.2 ml	4
38 kg	570 mg	22.8 ml	4
39 kg	585 mg	23.4 ml	4
40 kg	600 mg	24 ml	4

⚠️ The grey rows are below the minimum weight for Paracetamol (acetaminophen): do not give it without medical advice. Under 3 months, no medicine without a prescription.

The guide publishes a band of 10–15 mg/kg per dose. This table uses 15 mg/kg: it is the dose the published daily maximum is built from, and the one the manufacturers' leaflets give. A lower dose within the band is also correct.

Under 3 months, only if a doctor has told you to. Do not combine with other products that also contain paracetamol (cold remedies).

AEPap — Guía rápida de dosificación práctica en pediatría (3.ª ed.), tabla analgésicos/antitérmicos.

What parents ask about Pyrigesic

How much Pyrigesic for a child of 10, 15 or 20 kg?

The dose goes by weight, never by age alone. For Pyrigesic:

10 kg 150 mgsyrup 125 mg/5 ml: 6 ml
15 kg 225 mgsyrup 125 mg/5 ml: 9 ml
20 kg 300 mgsyrup 125 mg/5 ml: 12 ml

How often, and how many times a day?

Every 4–6 hours. For a child of 15 kg that is at most 4 doses in 24 hours.

What if I don't know what the child weighs?

Age is not enough: two children of the same age can be several kilos apart, and this dose is calculated per kilo. Weigh the child, or ask at the pharmacy. PediBot will not give a figure from age alone.

From what age can Pyrigesic be given?

Under 3 months, only if a doctor has told you to. Do not combine with other products that also contain paracetamol (cold remedies).

The same medicine under other names

In India, this is also sold as Crocin, Dolo, and Metacin. Different box, same molecule and the same dose per kilo — what changes is the strength printed on the bottle, so always read it.

Sold in India.

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