Bacillinum is a homeopathic remedy made from tuberculinum bacillus, the bacteria responsible for tuberculosis (TB). It is primarily used for individuals who are prone to respiratory infections, weak immune systems, and those who have a history of chronic illness or recurring infections. Bacillinum is especially helpful in treating conditions that are related to chronic fatigue, weakness, and general debility, often following long-term illness or past infections like tuberculosis.

This remedy is indicated for people with a tendency to catch colds, respiratory ailments, and skin conditions. It can also be useful for individuals who exhibit signs of emotional sensitivity, irritability, and poor resilience to stress, particularly when they feel a sense of being overwhelmed or unwell.