About multivitamin + phytonadione
Multivitamin and vitamin K injection
Used for
- Prevention or treatment of vitamin deficiencies when oral intake is unsuitable
- Prevention or treatment of vitamin K deficiency and related bleeding
Usual adult dose
Varies by formulation and indication; vitamin K1 is commonly given as 1–10 mg by injection, with repeat dosing guided by response.
Usual dose in children
Varies by formulation and indication; vitamin K1 dosing is weight- and age-dependent and must be prescribed by a clinician.
Common side effects
- Injection-site pain or irritation
- Allergic reactions, rarely severe
- Flushing or dizziness
- Unusual taste
Important warnings
- Combination contents and dosing vary; verify the exact product label.
- Injectable vitamin K can rarely cause severe allergic reactions.
- Vitamin K may reduce the effect of warfarin and similar anticoagulants.
- Use cautiously in newborns; dosing depends on age and clinical situation.
Pregnancy
Use only when clinically indicated; risks depend on the formulation and dose.
Breastfeeding
Use when clinically indicated; consult product-specific information because combination ingredients vary.
Interactions
- Warfarin and other vitamin K antagonists
- Some antibiotics may affect vitamin K status
- Other vitamin-containing products may increase total intake
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.