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B12 Facts >> Medical Issues >> Medication >> Drug Interactions >> Vitamin B12 and drug interactions

Vitamin B12 and drug interactions

Posted by b12patch | Posted in Drug Interactions, Medication | Posted on 10-07-2009

1

There’s a great list at PCC Natural Health Market detailing possible vitamin B-12 drug interactions. There were no negative interactions listed (whew!), but plenty of the drugs listed increase the need for B-12!

Here’s the list:

  • Alcohol (excessive, lasting more than two weeks)
  • Anticonvulsants
  • Aspirin
  • AZT
  • Cimetidine
  • Clofibrate
  • Colchicine
  • Cycloserine
  • Erythromycin
  • Famotidine
  • Fenofibrate
  • Gabapentin
  • Gentamicin
  • H2-blockers (such as Tagamet, Pepcid, Axid, and Zantac)
  • Isoniazid
  • Lansoprazole
  • Metformin
  • Methyldopa
  • Neomycin
  • Nicotine
  • Nitrous Oxide
  • Nizatidine
  • Omeprazole
  • Oral Contraceptives
  • Phenobarbital
  • Ranitidine
  • Sulfamethoxazole
  • Tetracycline
  • Tricyclic Antidepressants
  • Trimethoprim
  • Valproic Acid
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Comments (1)

Eric Stevenson UNITED STATES said on 14-07-2009

I take 3 of the above-listed meds. I had no idea about the effect they had on B12. I never take anything I read in ads at face value, so I’ll be doing my own research and verification with my doctors, but assuming I get the green light and assuming the doctor suggests that patches are a good delivery system for B12, I would definitely consider trying these out.

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