I did an Internet search and one site gave the generic
name as montelukast which is sold in the U.S. under the brand
name Singulair. If this is medicaiton you have been prescribed, it is not a steroid.
When you say fluticone do you mean fluticasone? If so, it is an inhaled corticosteroid.
Medrol is a corticosteroid.
I was not able to find any information on formanide.
Corticosteroids do have side effects and should not be stopped abruptly.