Hetrazan is used in the treatment of certain worm infections. Hetrazan works by killing the worms. It is used to treat: Bancroft's filariasis; Eosinophilic lung (tropical pulmonary eosinophilia; tropical eosinophilia); Loiasis; and River blindness (onchocerciasis). It will not work for other kinds of worm infections (for example, pinworms or tapeworms). Hetrazan is available only with your doctor's prescription, and only from the manufacturer.

One should consult with their doctor before giving Hetrazan 100 Tablet 30's to the child as it may cause a serious reaction if used in very young children. The use of Hetrazan 100 Tablet 30's is not allowed in patients dealing with a blockage in your stomach or intestine, difficulty in urinating, enlarged prostate, an asthma attack. Hetrazan 100 Tablet 30's may cause night blindness or even loss of vision if used for a long time, so one should visit their doctor regularly and should avoid driving or doing any work that needs a clear vision. The doctor may recommend a corticosteroid medication in certain patients facing river blindness with severe symptoms. It is given to reduce the inflammation that happened during the death of worms. Take these medications exactly in the same manner as directed by your doctor.