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Popular Brands: : Hydroxocobalamin, Cyanokit, Alpharedisol, Hydroxomin
Official FDA Reports2,296
Social Media Events1
Total Posts40
Avg. Review Score4.33/ 5
Active Ingredients
  • Hydroxocobalamin
  • Abraxis Pharmaceutical Products
  • Bel Mar Laboratories Inc
  • Merck And Co Inc
  • Serb Sas

  This report is for all products sharing this active ingredient. For more details, please use our Workbench for research on individual brands like Hydroxocobalamin.

* Extracted from FDA Adverse Event Report


The quarterly trend chart illustrates changing levels of adverse events over time. Results from both the FDA Adverse Event Database (FAERS) and adverse events extracted from social media by Druginformer are plotted side-by-side for easy comparison.

The proportion of people completing user reviews who complained about a side effect.

The proportion of social media adverse event complaints for each adverse event type.

The proportion of FAERS (FDA) adverse event complaints for each adverse event type.

Hydroxocobalamin Side Effects

  Social Media
(Online Comments)
(Reports Submitted to FDA)
Side Effect On Drug
Reports % of
Alarm Reports % of

* DrugInformer calculates alarm using a proprietary algorithm. Alarm should not be taken as an ofiicial signal from the FDA or other regulatory entity.

User Voices

The following are comments from users that experienced side effects while taking Hydroxocobalamin

Chronic Fatigue Syndrome

ME/ CFS primary PA secondary

Source: hydroxocobalamin intramuscular : User ...

View full report on Hydroxocobalamin related chronic fatigue syndrome

Did the author experience chronic fatigue syndrome while taking hydroxocobalamin?

What is this?

Tell us about your Experience with Hydroxocobalamin

Thank you for sharing your experience with us!

Share Your Experience

Druginformer Identified Side Effects: Chronic fatigue syndrome

Posted By LauraD in fdb.rxlist.com on October 16, 2014 @ 12:00 am

ME/CFS primary PA secondary

Druginformer Identified Side Effects: None

Posted By NeciScriptwrite in ehealthforum.com on July 21, 2015 @ 12:00 am

You can live with it and go in the sun I read this forum a few months ago and I made a post. I am posting an update because I have found some relief. Great relief. I read shoegal's p...

Druginformer Identified Side Effects: None

Posted By humptyD in drugs.com on July 17, 2015 @ 12:00 am

hi im really sorry im not actually meaning to reply to a thread. im just wanting to put my positive withdrawal from morphine up on the net for anyone who has been on it for a short time and is keckin...

Druginformer Identified Side Effects: None

Posted By AleEng in ehealthforum.com on July 11, 2015 @ 12:00 am

Hi all, I read this forum some months back, and it put me on the right track, so I would like to share back my situation. Forgive me for the long post, but I hope the details will help others. ...

Druginformer Identified Side Effects: None

Posted By sun in ehealthforum.com on June 4, 2015 @ 12:00 am

Hi all, I was reading this forum & figured I'd post on here. Much to my surprise, I realised I'd already posted on here 9 years ago!! haha. I'm now a 31yr old. I'm female from Australia, but hav...

Druginformer Identified Side Effects: None

Posted By FibroEA in facebook.com on May 20, 2015 @ 12:00 am

May 20 at 4:39am · Kath Cartwright shared: So annoyed right now.. After the 3rd time of seeing my GP to try and get something to help with the pain, as iv tried numerous meds in the past which I am...

Druginformer Identified Side Effects: None

Posted By OrlandoG in ehealthforum.com on May 14, 2015 @ 12:00 am

Hello everyone, I've been researching this from many credible sources but never joined a forum until now. I didn't know this was such a rare dermatosis. I attempted to be diagnosed in a VA hospital,...

Druginformer Identified Side Effects: None

Posted By HumanGuineaPig in drugs.com on May 14, 2015 @ 12:00 am

Updates? Hi Lisa and Airhead, I'm new to this forum and am in a similar situation as you two were at one point; it is Day 3 of detoxing for me, and it seems that the symptoms are at their p...

Druginformer Identified Side Effects: None

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Druginformer Identified Side Effects: None

Posted By doctor.health in facebook.com on May 6, 2015 @ 12:00 am

May 5 · It's true, vitamin D, calcium, magnesium, and vitamin K2 are crucial for bone health, but another vitamin is rising to be just as important: vitamin B12.The Absolute Best "Recipe" For Optim...

Additional Drug Information

* Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication. As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition.

* About FAERS: The FDA Adverse Event Reporting System (FAERS) is used by FDA for activities such as looking for new safety concerns that might be related to a marketed product, evaluating a manufacturer's compliance to reporting regulations and responding to outside requests for information. Reporting of adverse events is a voluntary process, and not every report is sent to FDA and entered into FAERS. The FAERS database may contain duplicate reports, the report quality is variable, and many factors may influence reporting (e.g., media attention, length of time a drug is marketed, market share). For these reasons, FAERS case reports cannot be used to calculate incidence or estimates of risk for a particular product or compare risks between products.