traveler's diarrhea =gram negative bacillus {Ans: adult=ciprofloxacin Child=Amoxicillin}Not affected by beta lactamase bacteria {Ans: oxacillin, nafcillin, dicloxacillin}Teicoplanin {Ans: narrow spectrum gram positive only MRSA}Isoniazid AE {Ans: hepatitis, peripheral neuropathy, seizures}Trimethoprim/sulfamethoxazole in pg {Ans: no, blocks folate}Macrolides {Ans: when allergic to PCN}