Monograph Details

Infections & Infestations > Bacterial infections
MACROBID
Manufacturer
Procter & Gamble Pharmaceuticals
Legal Classification
Rx
Pharmacological Class
Antibiotic.
Generic Name
Nitrofurantoin (as macrocrystals and monohydrate) 100mg; caps.
Indications
Susceptible acute uncomplicated UTIs.
Children
Not recommended.
Adults
Take with meals. 100mg every 12hrs for 7 days.
Contraindications
Anuria, oliguria, creatinine clearance <60mL/min. Neonates <1 month of age. Labor & delivery. Pregnancy at term. Nursing mothers.
Precautions
Renal insufficiency. G6PD or Vit. B deficiency. Anemia. Diabetes. Electrolyte imbalance. Asthma. Discontinue if pulmonary, hepatic disorders, hemolysis, or peripheral neuropathy occur. Monitor renal function in long-term use. Debilitated. Pregnancy (Cat.B).
Interactions
Avoid antacids containing magnesium trisilicate. May be antagonized by uricosurics (e.g., probenecid).
May cause false (+) glucose test with Benedict's or Fehling's solution.
Adverse Reactions
GI disturbances, headache, pulmonary disorders, hepatic damage, peripheral neuropathy, hemolytic anemia, dizziness, anorexia, alopecia, exfoliative dermatitis, Stevens-Johnson syndrome, anaphylaxis, blood dyscrasias, aplastic anemia.
How Supplied
Caps—100
Additional Resources
Related Prescribing Note