It is a systemically active mucolytic agent which works by breaking down the structure of mucus in the lungs and therefore facilitating expectoration. It treats acute and chronic respiratory diseases accompanied by elevated mucus production. Learn about Lorfast uses, dosage, side effects, food interactions, and more. Get all the details about Lorfast from MedicinesFAQ. Lorfast-AM Syrup is a combination medicine used in the treatment of cough with mucus. It relieves allergic symptoms such as sneezing, running nose, watery eyes, itching, swelling, and congestion or stiffness. It also thins and loosens mucus, making it easier to cough out. Lorfast-AM Syrup is taken with or without food in a dose and duration as advised by the doctor. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine ... Lorfast AM Tablet is a combination medicine containing Ambroxol (60mg) and Loratadine (5mg) . It is used to treat respiratory conditions with excessive mucus and allergic symptoms like sneezing, runny nose, and congestion.