can b12 injections cause black stools Noticed stool after taking iron tablets? Donβt panic π, Iron supplements turn stool dark or black because unabsorbed iron reacts inside the intestines β οΈ, In most cases, itβs a normal and Black or Tarry Stools-Causes |
Black or Tarry Stools Causes Diagnoses Treatments Prevention Vitamin B12 deficiency: Complications may include pancytopenia and black tarry stool Black stool isnt always harmlessit can signal internal bleeding in the digestive tract. While some foods or iron supplements can darken stool, persistent black, tarry stools need urgent medical Cyanocobalamin Wikipedia
Pay in 4 interest-free payments of $6.38 Learn more
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours Β· Estimated delivery Aug 3 - Aug 8


