Oral Contraceptives and B12 and folat... - Pernicious Anaemi...

Pernicious Anaemia Society

32,669 members24,064 posts

Oral Contraceptives and B12 and folate and Iron. Any update in the last 5 years?

Isolayslas profile image
7 Replies

Hi all, I've searched the forum about how B12 /folate is effected by oral contraceptives, which I have been on for over 20 years. The last posts I can find are from 5 years ago.

I am wondering if there is any new info.

I am on B12 3x a week with GP for 6 weeks now,(I won the battle for more than 2 weeks). I'd had Neuro symptoms. But I think they don't want to continue this much longer.

In the meantime I'm starting to wonder about the cause of my deficiency, also ferritin deficient and folate deficient. Am on iron and folic acid5mg).

I read in Dr Candy book that OC can reduce B12, but I don't know if this could be the cause. Perhaps the only way I will find out is stop the pill!?

Is this worth doing before other investigations?

Also what other investigations should I do, IF antibody was negative. I'm thinking of asking for H pylori test and SIBO test?

Also should I get an MRI to check for SACD? My foot is still going numb when I walk, although things are much improved.

Any advice new info in this area welcome.

Thank you.

Written by
Isolayslas profile image
Isolayslas
To view profiles and participate in discussions please or .
Read more about...
7 Replies
Isolayslas profile image
Isolayslas

Im 44 if that helps..

I can confirm the pill and HRT did affect me . I was sick for months and couldn't workout what was causing the vomiting until I started to stop different things (food then HRT). Eventually found out I had B12 deficiency.

Isolayslas profile image
Isolayslas in reply to

Hi thanks for your reply. Do you think that HRT or the pill caused your B12 deficiency? Did stopping HRT mean you didn't need B12 injections?Thanks.

in reply toIsolayslas

No I believe I had low b12 and that the pill/hrt drained my system further. Very much like other medications that can interfer with vitamins and minerals! Due to nerve damage etc I have monthly injections and also have my own supply both for me and my partner as the nhs in our area treat b12 injections like the crown jewels and very reluctant to treat people.

Sleepybunny profile image
Sleepybunny

Hi,

Some links about PA and B12 deficiency that may be of interest....

Link about "What to do next" if B12 deficiency suspected or recently diagnosed.

b12deficiency.info/what-to-...

If you suspect PA worth joining and talking to PAS who can offer support and pass on useful info.

PAS (Pernicious Anaemia Society)

Based in Wales, UK. Has some members in other countries.

pernicious-anaemia-society....

There is a helpline number that PAS members can ring.

Testing for PA (PAS article)

pernicious-anaemia-society....

PAS website has lots of useful articles. Some PAS members print them off for their GPs.

pernicious-anaemia-society....

PAS website has a page for health professionals that your GP may find useful.

pernicious-anaemia-society....

"Also what other investigations should I do"

"I'm starting to wonder about the cause of my deficiency"

There are many causes of B12 deficiency besides PA.

Risk Factors for PA and B12 Deficiency

pernicious-anaemia-society....

b12deficiency.info/what-are...

b12deficiency.info/who-is-a...

Have you been tested for coeliac disease?

Guidelines below suggest anyone with unexplained B12, folate or iron deficiency should be tested for coeliac.

NICE guidelines Coeliac Disease

nice.org.uk/guidance/ng20/c...

More info on Coeliac UK website

coeliac.org.uk/home/

Some forum members have reported they benefitted from going gluten free even if coeliac disease not diagnosed.

H Pylori infection

patient.info/digestive-heal...

NICE guidelines H pylori

pathways.nice.org.uk/pathwa...

Click on blue boxes in flowchart for more info.

bnf.nice.org.uk/treatment-s...

Any exposure to nitrous oxide?

Nitrous Oxide

gov.uk/drug-safety-update/n...

NICE guidelines Nitrous Oxide ( see side effects section)

bnf.nice.org.uk/drug/nitrou...

Any chance of internal parasites eg fish tapeworm?

Have you eaten raw or uncooked fish eg sushi, smoked salmon?

Have you lived or stayed in an area where internal parasites are common?

Giardia Lamblia (also known as beaver fever) is another parasite that can lead to B12 deficiency and there are others.

One clue that internal parasites might be an issue is an increase in eosinophils, a type of white blood cell. Eosinophil result can be found with results for Full Blood Count (FBC).

"Also should I get an MRI to check for SACD"

If you are concerned that SACD is a possibility, worth discussing with your GP.

Referrals to specialists are expensive and there is financial pressure on GP surgeries so I suggest you put any referral request into a brief, polite letter to GP and include evidence that supports request eg symptoms list, extracts from UK documents etc.

Neurological Consequences of B12 Deficiency

PAS news item

pernicious-anaemia-society....

PAS article about SACD, sub acute combined degeneration of the spinal cord

pernicious-anaemia-society....

Blog post from Martyn Hooper's blog, mentions SACD

martynhooper.com/2010/09/21...

"I'd had Neuro symptoms"

Were you referred to

1) a neurologist?

2) a haematologist

3) a gastro enterologist (if gut symptoms present)

Link below outlines when UK patients with B12 deficiency should be referred to a haematologist and gastro enterologist...

cks.nice.org.uk/topics/anae...

If GP won't refer to a haematologist, you could ask them to write to a local haematologist for advice on how to treat you.

Be warned that there is ignorance about B12 deficiency and PA among some haematologists, neurologists and other specialists so no guarantee that a referral will lead to better treatment.

"I am on B12 3x a week with GP for 6 weeks now,(I won the battle for more than 2 weeks). I'd had Neuro symptoms. But I think they don't want to continue this much longer."

The BNF link below states that every other day loading injections should continue for as long as symptoms continue to improve, for those with neuro symptoms. There is no set time limit for how long the every other day injections can continue for, although BSH Cobalamin and Folate Guidelines suggests possibility of a review after 3 weeks of them .

Symptoms Diary

You may find it helpful to keep a daily symptoms diary which tracks changes in symptoms over time and if and when any treatment is received. If your symptoms continue to improve, you could show them evidence from your symptoms diary if they try to stop your loading injections. When you are moved onto maintenance injections, a symptoms diary could help GPs to work out how often you need them.

See Point 1 in letter writing link down page and ask them to check their BNF book Chapter 9 Section 1.2 if they try to stop your loading injections.

BNF link below outlines two recommended patterns of treatment for B12 deficiency in UK

1) for those without neurological symptoms

2) for those WITH neurological symptoms

BNF Hydroxocobalamin

bnf.nice.org.uk/drug/hydrox...

Each CCG (Clinical Commissioning Board/Health Board/NHS hospital trust in UK is likely to have its own local guidelines on treatment/diagnosis of B12 deficiency.

Might be worth tracking down the local guidelines for your area of UK and comparing the info in them with BNF, BSH and NICE CKS links in this reply.

To find local guidelines for your area of UK ...

1) search forum posts using terms "local guidelines"

2) search internet using "name of CCG/Health Board B12 deficiency guidelines"

3) submit a FOI (Freedom of Information) request to CCG/Health board asking for access to or a copy of local B12 deficiency guidelines.

I hope you are not in the UK area discussed in blog post below which has a poor reputation on this forum for how B12 deficiency is managed.

b12deficiency.info/gloucest...

UK B12 documents

BSH Cobalamin and Folate Guidelines (detailed, aimed at health professionals)

b-s-h.org.uk/guidelines/gui...

Summary of BSH Cobalamin and Folate Guidelines (main points from above)

pernicious-anaemia-society....

NICE CKS B12 deficiency and Folate deficiency

cks.nice.org.uk/topics/anae...

There are currently new NICE guidelines in development for Pernicious Anaemia and B12 deficiency. These should be published next year.

nice.org.uk/guidance/indeve...

If you click on "project documents" then on "consultation comments and responses" it gives a good insight into current issues around diagnosis and treatment (over 40 pages).

Unhappy with Treatment (UK info)?

Letters to GPs about B12 deficiency

b12deficiency.info/b12-writ...

Point 1 in above link is about under treatment of B12 deficiency with neuro symptoms.

Point 5 is about being symptomatic with an in range serum (total) B12 result.

Link has letter templates that people can base their own letters to GP on.

Two useful B12 books

"What You Need to Know About Pernicious Anaemia and B12 Deficiency" by Martyn Hooper

Martyn Hooper is the chair of PAS (Pernicious Anaemia Society).

BNF treatment info in above book is out of date. See BNF hydroxocobalamin link.

"Could it Be B12?: An Epidemic of Misdiagnoses" by Sally Pacholok and JJ. Stuart (USA authors)

Very comprehensive with lots of case studies.

Films and videos about B12 deficiency and PA

PAS conferences

pernicious-anaemia-society....

Films about b12 deficiency

b12deficiency.info/films/

If your GP is lacking knowledge about B12 deficiency and PA, links below may be useful.

B12 article from Mayo Clinic in US

ncbi.nlm.nih.gov/pmc/articl...

Table 1 in above article is about frequent misconceptions about B12 deficiency that health professionals may have.

Misconceptions about a B12 deficiency

(From Dutch B12 website - units, ref ranges, treatment patterns may vary from UK)

stichtingb12tekort.nl/engli...

Blog post that mentions misconceptions about B12 deficiency

b12deficiency.info/a-b12-se...

BNF (UK ) treatment guidance has changed since above blog post was written.

Diagnosis and Treatment Pitfalls(From B12 Institute in Netherlands - units, ref ranges, treatment patterns may vary from UK)

b12-institute.nl/en/diagnos...

Links to forum threads where I left detailed replies with lots of B12 deficiency info eg more on causes and symptoms, more UK B12 documents, B12 books, B12 websites and B12 articles and a few hints on dealing with unhelpful GPs.

Some links may have details that could be upsetting.

Some of the info will be specific to UK.

healthunlocked.com/pasoc/po...

healthunlocked.com/pasoc/po...

healthunlocked.com/pasoc/po...

I am not medically trained.

In the years prior to my diagnosis I was given hrt to treat my symptoms. It did not work and eventually I was diagnosed with PA. After 7 years on hrt I have very gradually weaned myself off stopping completely a few weeks ago. This has been in conjunction with increasing SI. It is b12 that prevents hot flashes for me not hrt. It is early days firvme but I do think hrt prescription and effect should be researched.

USmedsyssucks profile image
USmedsyssucks

There are too many negative effects of birth control to even begin to list here. I truly hate that so many women are handed this stuff like candy and told it is completely benign. I had horrible pelvic pain/bladder effects from birth control after only a few days of taking it, and my story was fairly benign. Those who have dealt with hormone-induced intracranial hypertension or cancer would likely have a much longer story to tell. Needless to say, I've done much research and have never touched the stuff since. If you think it could be negatively affecting you, I see no reason not to stop for a while and see how you feel.

Not what you're looking for?

You may also like...

B12/Folate/Iron deficiencies

Hey guys My mum's thyroid tests came back hypo and she started levo and is autoimmune. I'm trying...
Saggyuk profile image

B12 and Folate

I was having injections for b12 then my doc said the injections would stop and I'd be given folate....
dusk33 profile image

B12 and folate deficiency

I was told by GP that I had b12 deficiency and iron deficiency anemia. Given 6 loader jabs for b12...
Poodoo profile image

Does low B12 and Folate indicate Pernicious anaemia?

Hi, I am new to this forum and have been advised to seek info and advice here from The Thyroid UK...
Blossom1573 profile image

Relationship with b12 and folate

I have been self injecting b12 for quite some time now from home (three years or so). I have...
Krealan profile image

Moderation team

See all
Gambit62 profile image
Gambit62Administrator
Foggyme profile image
FoggymeAdministrator
taka profile image
takaAdministrator

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.