Adult Dosing

Active pulmonary and extrapulmonary tuberculosis

• Start 250 mg PO bid for 2 wks, then as tolerated 250 mg PO Q6-8H. [MAX: 1000 mg/day]

Acute urinary tract infections

• 250 mg PO BID X 14 days [Max: 1000 mg/day]

Pediatric Dosing

• Safety and effectiveness in pediatric patients have not been established, some references have advised 10 to 20 mg/kg/day in two divided doses

• Treatment of active pulmonary and extrapulmonary tuberculosis
• Treatment of acute urinary tract infections, only when more conventional therapy has failed

• Hypersensitivity to any of the ingredients of the product
• Epilepsy
• Depression, severe anxiety, or psychosis
• Severe renal insufficiency
• Excessive concurrent use of alcohol

• N/A

Renal Dose Adjustment

• Mild to moderate impairment: Reduce dose; dose adjustment not defined
• Severe impairment: Contraindicated if creatinine clearance less than 50 ml/min

Hepatic Dose Adjustment

• Hepatic impairment: Dose adjustments not defined

• Reduce dosage or suspend therapy if the patient develops allergic dermatitis or symptoms of CNS toxicity
• Use with caution in alcoholics as the risk of convulsions is increased in chronic alcoholics
• Monitor patients by hematologic, renal excretion, blood level, chest X-ray, and liver function studies
• Before starting therapy, obtain cultures to determine the organism's susceptibility to the drug
• Therapy with cycloserine has been associated with vitamin B12 and/or folic acid deficiency, megaloblastic anemia, and sideroblastic anemia. Institute appropriate therapy if anemia develops
• Monitor CrCl/BUN (urea), CBC, LFTs periodically during therapy; monitor serum drug levels in patients receiving > 500 mg/day qwk if renal impairment or if signs of toxicity are present

Cautions: Use cautiously in

• Renal impairment
• Hepatic impairment
• Anemia
• Alcoholism

Pregnancy Category:C

Breastfeeding: Safety unknown; monitor exclusively breastfed infants for adverse events and measure serum levels to rule out toxicity. This information is based upon LactMed database (available at http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT).This drug is compatible and considered safe with breastfeeding based upon data from AAP Policy Guidelines (available at http://aappolicy.aappublications.org/cgi/content/full/pediatrics;108/3/776 last accessed 21 January 2011).Manufacturer recommends discontinuation of nursing or discontinuation of the drug, taking into account the importance of the drug to the mother.

• CNS: Seizures, psychosis, suicidal ideation, coma, somnolence, headache, tremor, vertigo, confusion, impaired memory, behavior changes, irritability, aggressive behavior, paresthesias, hyperreflexia
• CV: Acute CHF
• HEMA: Anemia
• DERM: Rash
• GI: Elevated liver transaminases
• MISC: Dysarthria, allergic reactions

• Antituberculosis agent; inhibits cell wall synthesis in susceptible strains of certain microorganisms
• Metabolized by liver; CYP450: Unknown
• Renally excreted (65% unchanged)
• Half-life: 10 hrs; prolonged in renal impairment

US Trade Name(s)

• Seromycin

US Availability

Seromycin

• CAPS: 250 mg

Canadian Trade Name(s)

• N/A

Canadian Availability

• N/A

UK Trade Name(s)

• Only generic available

UK Availability

cycloserine (generic)

• CAPS: 250 mg

Australian Trade Name(s)

• Only generic available

Australian Availability

cycloserine (generic)

• CAPS: 250 mg

Antimicrobials

Antituberculosis Agents

Streptomyces Derivatives

Infectious Disease

Antituberculosis Agents

Streptomyces Derivatives

Pricing data from www.DrugStore.com in U.S.A.

• Seromycin 250 MG CAPS [Bottle] (THE CHAO CENTER)
  10 mg = $107.99
  30 mg = $287.96

Warning: This pricing information is subject to change at the sole discretion of DS Pharmacy. For the most current and up-to-date pricing information, please visit drugstore.com.

Drug Name: Seromycin 250 MG Oral Capsule

Ingredient(s): Cycloserine

Imprint: Lilly;F04

Color(s): Red, Gray

Shape: Capsule

Size (mm): 20.00

Score: 1

Inactive Ingredient(s): d&c yellow no. 10 / fd&c blue no. 1 / fd&c red no. 3 / fd&c yellow no. 6 / gelatin / iron oxide / talc / titanium dioxide

Drug Label Author:
Eli Lilly and Company

DEA Schedule:
Non-Scheduled