Sterile-talc is sold in the form of powder, and is indicated to decrease recurrence of malignant pleural effusions and pneumothorax. It is worth noting that malignant pleural effusion is a condition in which cancer causes an abnormal collection of fluid in the space between the lung and chest wall. So, when sterile talc powder is inserted into the pleural space, it causes the space to close up so fluid cannot collect there. Unfortunately, some people have had lung problems with Sterile Talc Powder, and these problems can sometimes be deadly. So, you must call your doctor right away if you have signs of lung problems like shortness of breath, cough that is new or worse, or fever. Bear in mind that if you are pregnant or may be pregnant, some brands of Sterile Talc Powder are not recommended. Besides, you must not breast-feed for some time after taking some brands of this medication. In fact, you should talk with your doctor to see if you need to avoid breast-feeding after your dose just to make sure that it won’t harm your baby.