Normal Dose|Renal Impairment|Hemodialysis
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| Indication | Dose | Frequency | Cost |
| Usual adult dosage | 250 mg | Q6 hours | $1.00/day |
| Streptococcal pharyngitis | 500 mg | Q12 hours | $1.00/day |
| Skin infections | 500 mg | Q12 hours | $1.00/day |
| Uncomplicated cystitis | 500 mg | Q12 hours | $1.00/day |
| Creatinine Clearance | Dose and Frequency |
| Crcl >40 ml/min | 250 mg to 500 mg Q6-8 hours |
| Crcl 11- 40 ml/min | 500 mg Q8 - 12 hours |
| Crcl 5-10 ml/min | 250 mg Q12 hours |
| Crcl <5 ml/min | 250 mg Q12- 24 hours |
| Dose | Frequency |
| Normal dose | to be given after dialysis |
| For the treatment of UTI- 500 mg | Q24 hours plus 500 mg at the end of each dialysis |