Potassium Chloride and Prenatal Multivitamin Interaction
Drug interaction information between Potassium Chloride and Prenatal Multivitamin.
Potassium Chloride and Prenatal Multivitamin have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Potassium Chloride and Prenatal Multivitamin. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.
How They Interact
Potassium chloride can make it harder for your body to soak up vitamin B12 from your multivitamin.
FDA Label Information
Drugs which may interact with vitamin B 12 (Methylcobalamin): • Antibiotics, cholestyramine, colchicines, colestipol, metformin, para-aminosalicylic, and potassium chloride may decrease the absorption of vitamin B 12 .
Potassium Chloride Also Interacts With
- Amiloride major
- Spironolactone minor
- Eplerenone minor
- Aliskiren minor
- Glycopyrrolate minor
Prenatal Multivitamin Also Interacts With
- Trimethoprim moderate
- Phenytoin moderate
- Metformin minor
- Fluoxetine minor
- Ibuprofen minor
Frequently Asked Questions
What SPL severity band is on file for Potassium Chloride + Prenatal Multivitamin?
Compiled FDA labeling labels this pair minor. That is a source-record field, not an individual medication-combination decision.
Which drug in this pair has the larger labeled-interaction portfolio?
Prenatal Multivitamin has 23 labeled pairs on file vs Potassium Chloride's 6. In the minor band specifically: Potassium Chloride has 5 (also Spironolactone, Eplerenone, Aliskiren, Glycopyrrolate); Prenatal Multivitamin has 21 (also Metformin, Fluoxetine, Ibuprofen, Lamotrigine).
What mechanism field is on file for Potassium Chloride and Prenatal Multivitamin?
Potassium chloride can make it harder for your body to soak up vitamin B12 from your multivitamin.
Potassium Chloride carries more major-labeled pairs than Prenatal Multivitamin
SPL source-record counts only. This page's band is minor · classes on file: Potassium Chloride (Electrolyte Supplement); Prenatal Multivitamin (Prenatal Vitamin).
Potassium Chloride has 1 major-labeled pair vs Prenatal Multivitamin's 0. This page itself is in the minor band, not the major band.
1 major · 0 moderate · 5 minor · 6 total
- Other minor peers for Potassium Chloride
- Spironolactone
- Eplerenone
- Aliskiren
- Glycopyrrolate
0 major · 2 moderate · 21 minor · 23 total
- Other minor peers for Prenatal Multivitamin
- Metformin
- Fluoxetine
- Ibuprofen
- Lamotrigine
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.
Read our methodology - how this data is sourced, computed, and verified.