Biotin overdose – Symptoms, Signs, Amount, Treatment

Vitamins are very much required for the benefits of the human body. However, the irony is taking overdose of the vitamins can also cause many side effects. One important ingredient of Vitamin B Complex, Biotin or Vitamin B7 is a similar Vitamin. The vitamin is used for the pregnant women and kids, also for hair fall and many other issues. However, Biotin overdose can cause much of trouble for the people.

What is Biotin?

The Biotin breaks up into chunks of carbohydrate, fat and protein and enters the cells of the body. However, exceeding the safe limit of the same vitamin remains a matter of concern for the people.

Biotin overdose B7 Vitamin

Biotin is used to break the food into amino acid and carbohydrate to induce energy in the body. The vitamin which is also known as Vitamin H is highly accredited for beautiful hair, skin and nails are often used. Apart from consuming directly, Biotin can be consumed directly from many fruits and vegetables. There is no doubt that Biotin improves the Keratin structure, but the case of Biotin deficiency is very rare among people. The deficiency of Biotin is not going to cause any major problem in people, but the overdose possesses a greater threat. Starting from imbalance of Blood Sugar level to life threatening Pulmonary Diseases can be occurred for the overdose of Biotin.

Symptoms of Biotin Overdose

Generally, the excess of biotin gets excreted from the body through Urine. But ingested biotin can cause many diseases. The most common symptoms of the Biotin Overdose are the following.

Skin Allergy

Skin Allergy is the most common symptoms and problem of Biotin overdose. Skin Rashes are found all over the body, and it itches. The allergic reactions of Biotin Overdose may spread to throat and chest. The allergy of throat and chest inside the body chocks the body part. The serious condition is known as the Anaphylaxis; This is a kind of respiratory and breathing problem. In extreme condition, it can be life threatening as well.

Skin allergy in biotin overdose

Blood Glucose Level

Biotin is responsible for the formation of Fatty acid and in turn Glucose in the body. However, with the increased level of Biotin in the body may result in serious condition of increased Glucose level in the blood. The condition becomes worse if the patient is diabetic in nature.

Eosinophilic Pleuropericardial Effusion

Eosinophilic Pleuropericardial Effusion is a very rare disorder caused by the Biotin. Air and Blood fills the Pleural Cavity, space near the lungs causing serious pulmonary risks. The condition can be life threating.

Other Symptoms

Apart from these, there are other common symptoms of the Biotin Overdose as well. The most common are

  • Increased and Excessive thirst is a potential threat for Biotin Overdose.
  • Lack of sleep or Insomnia can also be one of the major symptoms of Biotin Overdose.
  • Excessive Urination can also indicate biotin overdose in the body.
  • Another very common symptom is Diarrhoea for the disease.

Signs of Biotin Overdose

Early signs of Biotin Overdose are very difficult to spot as they are common and also not very much identical. However, flushing of the skin is one of the vital signs of the Biotin Overdose. Excessive urination and increased thirst are also very common signs of the disease. It is important to detect the signs of the disease for the better treatment and avoid the hazardous effect of the vitamin. If any of the signs are detected by the patient, it should immediately be brought under the notice of a doctor. Read How many pills it takes to overdose?

Amount of Biotin Overdose

The amount and recommended dosage of Biotin for any individual is quite dubious. The medical society has many views on the dosage amount. However, the general amount that can be consumed of Biotin is 2.5 mg per day. However, anything more than the amount can be a potential threat for the patient. If anyone takes Biotin externally then a doctor should always be consulted for the recommended usage. The diabetic patients are also advised to consult doctors for the Biotin Dosage.

Treatment of Biotin Overdose

Treatment of Biotin Overdose is very important and should be done as soon as possible. There are few steps that are followed for the successful treatment of the Biotin Overdose.

  • The first treatment policy of Biotin Overdose is to stop the intake of Biotin and restrict the flow of the vitamin in the body.
  • Biotin vitamin is a good solvent of water so intake of lots of water can dissolve the toxic substances, and excessive biotin in the body and overdose can be minimized.
  • Another very common method of treatment for Biotin overdose is Activated Charcoal Administration. The toxic substances and excessive biotins get stick to the charcoal, and the overdose effect gets reduced.
  • However, in the extreme condition, the final treatment method might be gastric lavage. A pipe is installed from the nostrils to the stomach, and the tube washes the body with specific fluid. The process ensures all the excessive biotin is washed out from the body and also excreted.

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9 thoughts on “Biotin overdose – Symptoms, Signs, Amount, Treatment

  • 01/09/2016 at 2:30 am

    Please attach references with health claims you make and share freely and NOTE: Eosinophilic Pleuropericardial Effusion has only one case in recorded history and an assumption was made that B5 was possible cause!! Not very scientific, Thank you for your time

  • 24/02/2017 at 1:43 pm

    I’ve experienced itchy palms that seemed a bit swollen, feels thick after taking biotin in few days

  • 20/04/2017 at 12:47 pm

    Ive taken the 10000 mcg supplement which is about 10mg almost every day for over a month and i don’t have any of these symptoms.

  • 07/06/2017 at 9:37 pm

    I’ve been taking 5 of the 10000mcg pills everyday for 2 months now my bodies extremely itchy all over. I’ve been looking for an answer for awhile seems like the biotin is it.

  • 16/06/2017 at 6:48 am

    Can you break out in major acne and thinning hair from talk g to much biotin? I was extremely itchy and experiencing a few other symptoms mentioned. But the acne is my greatest concern. Never had it before. What can someone do to fix this??? Can I reverse these effects somehow? I have stopped talking the biotin already

  • 18/11/2017 at 5:39 pm

    I was taking about 2500 mg a double dose of biotin a day and developed a very itchy rash mostly legs . I stopped taking it pronto, I am can’t wait for this rash to go awAy, I don’t know how long it will stay in my body?

  • 04/07/2018 at 12:52 am

    I was taking biotin for a month and a half when I started feeling the negative side effects ….started with eyes burning and went to dry eyes….ever since I’ve had eye issues, went to doctor and they laughed when I told them my problems. went to eye doctor twice they seem to think its something else saying ” it couldn’t be biotin its been 2 months, its not in your system anymore” any help??

  • 26/08/2019 at 11:27 am

    My wife had taken a few pills here and there over two weeks with VERY bad hives and rash on legs and arms that incidentally, were worse than mosquito bite with respect to the itch factor. She tried Benadryl (Histamine 1 blocker) along with Pepcid AC (Histamine 2 blocker) which seemed to work but was just the band aid effect. Finally a doctor visit and a prescription for her to take Prednosone and Hydroxyzine HCL for inflammation and itching. Day 3 of 3 weeks to go….be very careful with Biotin visit the Dr. BEFORE taking to be safe!

    • 09/11/2019 at 6:43 am


      Currently going through same thing with the hives and severe itching….. wondering if she ever got back to normal with the meds?



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