It is generally not recommended to drink alcohol while climbing Kilimanjaro. Alcohol can dehydrate you, which can exacerbate altitude sickness, and can also impair your judgment, balance, and coordination, which can increase the risk of accidents on the mountain. It is also illegal to bring or consume alcohol on Kilimanjaro.
Additionally, alcohol is a diuretic, which means it can increase your urine output, and this can be a problem on Kilimanjaro, as it is important to stay well hydrated to avoid altitude sickness. Drinking alcohol can also interfere with your sleep, which is important for acclimatization and recovery during the climb.
Therefore, it is advisable to avoid drinking alcohol while climbing Kilimanjaro, and to focus on staying well-hydrated with water and other non-alcoholic fluids.