Welcome to HCM,
Look every fever is not bacterial infection in origin and choice of antibiotic depends on various factors.
If you have fever please take paracetamol
and please visit a Physician who will examine and if required investigate with various blood and x ray
, urine test if it is necessary proper treatment may be given.
This drug can cause serious side effect like a plastic anemia
so do not take by yourself with out proper prescription .
There are many group of antibiotic so suitable may be prescribed to you which depends on causative agent.
even in Typhoid
there are many alternative available in fact many typhoid are resistant to Paraxin