⚠️ Serious warning: Nothing on this website is approved by any physician. Doz is only a tool to help physicians and to search drugs easily. Taking medicines without medical supervision can be fatal.
Isoniazid
ایزونیازید
🦠 Antiinfectives For Systemic UseAntituberculous
🤰 Pregnancy:Use with caution🤱 Breastfeeding:Use with caution 🇮🇷 Registered in Iran⛔ 1 contraindications 🇺🇸 FDA approved generic (ANDA) ANDA040090ATC J04AC01
Market / country: 🇺🇸 USA
INH (US)
🧮 Dose calculator
Tuberculosis · Regimen source: FDA Isoniazid · Dosage and Administration — Usual Oral Dosage
- • Or 15 mg/kg (up to 900 mg) two or three times weekly. FDA Isoniazid · Dosage and Administration — Usual Oral Dosage
Enter age and weight.
🛡️ Safety & information
Contraindications
- ⛔ Previous severe reactions (incl. drug hepatitis); previous isoniazid liver injury; acute liver disease. FDA Isoniazid · Contraindications
Warnings
- • Boxed warning: severe, sometimes fatal hepatitis; risk rises with age and daily alcohol use; monitor symptoms and liver enzymes. FDA Isoniazid · Boxed Warning
Formulations
- 100 mg tablet (scored) — tablet 🇺🇸 USA FDA Isoniazid · How Supplied
- 300 mg tablet (scored) — tablet 🇺🇸 USA FDA Isoniazid · How Supplied
👥 Special populations
- 🤰 PregnancyUse with caution
Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Isoniazid · Pregnancy
“Teratogenic Effects Pregnancy Category C Isoniazid has been shown to have an embryocidal effect in rats and rabbits when given orally during pregnancy.”
- 🤱 BreastfeedingUse with caution
Label: use with caution while breastfeeding; see the label text. FDA Isoniazid · Nursing Mothers
“The small concentrations of isoniazid in breast milk do not produce toxicity in the nursing newborn; therefore, breast feeding should not be discouraged.”
- 👶 ChildrenNo data
The source for this drug has no section for this group.
- 👴 Older adultsNo data
The source for this drug has no section for this group.
- ⚥ Females & males of reproductive potentialNo data
The source for this drug has no section for this group.
🔗 Reference links
- FDA (approval record)ANDA040090
- DailyMed (FDA label)FDA Isoniazid
- MedlinePlus (NIH)Isoniazid
- WHO ATC/DDDJ04AC01
- Darooyab (Iran)Isoniazid
🇮🇷 Registered in Iran Darooyab · G-416/Isoniazid
Dosage forms with Iranian generic codes, per Darooyab.
- 00712 · ISONIAZID 100MG TAB · قرص ایزونیازید ۱۰۰ میلیگرم
- 00713 · ISONIAZID 300MG TAB · قرص ایزونیازید ۳۰۰ میلیگرم
- 00714 · ISONIAZID 500MG/5ML AMP · آمپول ایزونیازید ۵۰۰ میلیگرم / ۵ میلیلیتر
📚 Reference status for this drug
Shows which sources have references recorded for this drug and which do not.
- FDA label (DailyMed)✅ PresentFDA Isoniazid · How SuppliedFDA Isoniazid · Dosage and Administration — Usual Oral DosageFDA Isoniazid · ContraindicationsFDA Isoniazid · Boxed WarningFDA Isoniazid · PregnancyFDA Isoniazid · Nursing MothersFDA Isoniazid · SPL approval / marketing category
- UK SmPC (eMC / MHRA)❌ Not present
- Published guideline❌ Not present
- Licensed reference (medical school)❌ Not present
- Iranian leaflet (IFDA)❌ Not present
- Pharmacy website (secondary, unreliable)✅ PresentDarooyab · G-416/Isoniazid
- Clinical review⚠ Unverified