Arachitol Nano Oral Solution 4 x 5 ml used to prevent/treat vitamin D deficiency. It contains Cholecalciferol, which increases vitamin D levels in the body. In some cases, this medicine may cause side effects such as vomiting, nausea, constipation, and increased calcium levels in blood and urine. Inform the doctor if you are pregnant or breastfeeding, taking any other medication, or have any pre-existing medical conditions.