Inj H mixtard dose calculation for 50 kg weight male person
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Mixtard 30/70 insulin dose calculation per kg starting dose type 2 diabetes
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Here is a complete dose calculation for Inj. Mixtard (Human Insulin 30/70) for a 50 kg male:
Mixtard Dose Calculation - 50 kg Male
What is Mixtard?
Mixtard 30 is a premixed biphasic insulin containing:
- 30% soluble (regular) insulin - rapid-acting component
- 70% isophane (NPH) insulin - intermediate/long-acting component
Step 1: Total Daily Dose (TDD)
| Indication | Dose Formula | For 50 kg |
|---|---|---|
| Type 2 DM (naive, conservative start) | 0.3 units/kg/day | 15 units/day |
| Type 2 DM (standard start) | 0.4-0.5 units/kg/day | 20-25 units/day |
| Type 1 DM / maintenance | 0.5-1.0 units/kg/day | 25-50 units/day |
| Insulin-resistant / obese | Up to 1.0 units/kg/day | up to 50 units/day |
Standard starting dose for a 50 kg insulin-naive Type 2 diabetic = 0.3 units/kg = 15 units/day
Step 2: Dose Split (BD Regimen - most common)
Mixtard is typically given twice daily (before breakfast and before dinner):
| Injection | Proportion | Dose (at 15 units TDD) | Dose (at 20 units TDD) |
|---|---|---|---|
| Morning (pre-breakfast) | 2/3 of TDD | 10 units | 14 units |
| Evening (pre-dinner) | 1/3 of TDD | 5 units | 6 units |
- Give 30 minutes before meals
- Inject subcutaneously (abdomen, thigh, upper arm, or buttocks)
- Rotate injection sites each time
Step 3: Dose Adjustment
After starting, titrate based on blood glucose monitoring:
| Blood Glucose (Fasting) | Action |
|---|---|
| > 180 mg/dL | Increase dose by 4 units every 3 days |
| 130-180 mg/dL | Increase dose by 2 units every 3 days |
| 70-130 mg/dL | Maintain current dose (target achieved) |
| < 70 mg/dL (hypoglycemia) | Decrease dose by 2-4 units |
Practical Summary for a 50 kg Male (Type 2 DM, Starting Dose)
| Morning dose | 10 units SC (30 min before breakfast) |
| Evening dose | 5 units SC (30 min before dinner) |
| Total daily | 15 units/day |
| Adjust by | 2 units every 3 days to target |
Important Notes
- Always check blood glucose before adjusting dose
- Do NOT mix Mixtard with other insulins in the same syringe - it is already premixed
- Gently roll the vial/pen 10 times before use to resuspend the insulin (it appears cloudy)
- Never shake the vial
- Monitor for hypoglycemia especially 1-2 hours after morning dose (regular component peak) and overnight (NPH peak)
- Dose may need upward adjustment in fever, infection, surgery, or steroid use
- If patient is elderly or has renal impairment, start at the lower end (0.2-0.3 units/kg)
Disclaimer: This is a general guideline. Actual dose must be individualized by a physician based on the patient's HbA1c, fasting and postprandial glucose values, renal function, and clinical status. Sources: Drugs.com Mixtard monograph, EU Mixtard prescribing information.
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