A pharmaceutical, non-effervescent, solid composition comprising a mixture of a pharmaceutically effective amount of a ibuprofen salt and a pharmaceutically acceptable strong base in a molar ratio of from 1:0.01 to 1:0.8, said composition being such that, when dissolved in a suitable liquid for dilution, imparts a pH value ranging from 9 to 9.5 to the obtained solution, which do not cause sensory irritation to the oral cavity especially to the back of the mouth and throat, when swallowed.