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Review: could Gabapentin cause Vitamin b12 deficiency?

Summary: Vitamin b12 deficiency is found among people who take Gabapentin, especially for people who are female, 60+ old, also take medication Synthroid, and have Osteoporosis.

We study 37,067 people who have side effects while taking Gabapentin from FDA and social media. Among them, 20 have Vitamin b12 deficiency. Find out below who they are, when they have Vitamin b12 deficiency and more.

You are not alone: join a support group for people who take Gabapentin and have Vitamin b12 deficiency >>>



Gabapentin has active ingredients of gabapentin. It is often used in neuralgia. (latest outcomes from 39,637 Gabapentin users)

Vitamin b12 deficiency

Vitamin b12 deficiency has been reported by people with osteoporosis, osteopenia, high blood pressure, multiple sclerosis, depression. (latest reports from 2,484 Vitamin b12 deficiency patients)

On Feb, 25, 2015: 37,067 people reported to have side effects when taking Gabapentin. Among them, 20 people (0.05%) have Vitamin B12 Deficiency.

Trend of Vitamin b12 deficiency in Gabapentin reports

Time on Gabapentin when people have Vitamin b12 deficiency * :


Age of people who have Vitamin b12 deficiency when taking Gabapentin * :

Vitamin b12 deficiency0.00%0.00%0.00%11.11%0.00%5.56%22.22%61.11%

Severity of Vitamin b12 deficiency when taking Gabapentin ** :


How people recovered from Vitamin b12 deficiency ** :


Top conditions involved for these people * :

  1. Osteoporosis (9 people, 45.00%)
  2. Dyspepsia (8 people, 40.00%)
  3. Restless legs syndrome (8 people, 40.00%)
  4. Hypothyroidism (8 people, 40.00%)
  5. Hypertension (8 people, 40.00%)

Top co-used drugs for these people * :

  1. Synthroid (10 people, 50.00%)
  2. Aciphex (10 people, 50.00%)
  3. Fosamax (9 people, 45.00%)
  4. Lisinopril (8 people, 40.00%)
  5. Alendronate sodium (8 people, 40.00%)

* Approximation only. Some reports may have incomplete information.

** Reports from social media are used.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

Get connected: join our support group of gabapentin and vitamin b12 deficiency on

Do you have Vitamin B12 Deficiency while taking Gabapentin?




You are not alone! Join a mobile support group on :
- support group for people who take Gabapentin and have Vitamin B12 Deficiency
- support group for people who take Gabapentin
- support group for people who have Vitamin B12 Deficiency

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NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

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DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

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