How many capsules of ibuprofen to take depends on the exact specifications. Most tablets of ibuprofen are 0.1g/tablet, and in the case of extended-release capsules of ibuprofen, it can be 0.3g/tablet. If it is used to reduce fever, adults can take ibuprofen tablets just 2 capsules/time, which is up to 0.2g/time. If it is compounded zinc cloth granules, the amount in one packet is 0.15g, and adults can take such a large amount on it. Some people are stronger and heavier, so taking a packet of zinc boo pellets, i.e. 0.15g, may not be able to reduce fever, and may need to take up to 0.3g to achieve the effect of reducing fever. So it should also be judged on a case-by-case basis, but for adults 0.2g of ibuprofen can reduce fever. In the case of extended-release capsules of ibuprofen, the size of one capsule is 0.3g, which allows the drug to be maintained for about 12 hours for the relief of headache or other pain, and 1 capsule/dose is sufficient for 2 times/day to maintain the blood level for the whole day.