Pro Plus contains caffeine, a stimulant that can help to maintain mental alertness and make you feel more awake. Pro Plus Tablets Pro Plus Tablets help pr you with a caffeine kick that helps you feel more awake and reduce the symptoms of fatigue and tiredness. Who should take Pro Plus Tablets Pro Plus Tablets are ideal for professionals, students, and all those who follow a hectic lifestyle and need help to relieve the feeling of tiredness or fatigue to help keep going. Pro Plus contains 100mg of caffeine, equivalent to a strong cup of coffee to help you feel less tired.