Lora-Tabs are a non drowsy fast acting anti-histamine used for the relief of symptoms associated with perennial and seasonal allergic rhinitis (hayfever), such as sneezing, nasal discharge and itching, as well as itching and burning of the eyes. Lora-Tabs are also used for the relief of symptoms and signs of chronic urticaria (hives) and other allergic skin disorders, such as itching, redness and lumps.
Basically, they relieve you of little things like sneezing, etc.
And getting hit by a mortar frag kills the average man instantly.
So Bis is saying hes such a beast that he can get hit by a mortar frag and all he has to take is the Lora-Tab because its only a minor inconvience to him.
Thats the thing about Bis, there are more to his rhymes then what you hear.
Did you know that "No Return" from Rip The Jacker, is really about 9/11 told from a civilians POV, a soldiers POV, and a terrorists POV?