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Restlessness,headache after b12
Am took 1st dose of b12 1500mcg as I have b12 level 148. But after taking does my anxiety and restlessness increased. Also head and pressure in ear. Bp is 113/77. Is it normal or should I stop medication
Answers (17)
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Thanks for sending across your query.
It is not common but it may happen in case you take Injection intravenously directed withour diluting.. so it is advised to take vitamin B12 injection intramuscular or diluting in 100ml NS
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Change the time of medicine and if the same symptoms persist then can consult
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B12 injection can cause restlessness, anxiety and feeling of heaviness in head and or ears, as side effect. You can switch over to tablets, benefits are the same, difference being inj has rapid action and better absorption. Tablets though a bit slow to act, are beneficial.
Take tab Mecodenz 2.5microgram , one daily after breakfast for 6 to 8 weeks.
Take more of fortified cereals, berries, dairy products, soya, almonds, oats, nutritional yeast,.
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Continue medicine
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You don't have to stop the medication. Both are not related. Consult with ENT doctor if ear pressure persists for more than 2 days.
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Hello,
I am Dr. Romain Rajan, General Physician (Ex Govt Medical Officer at RML Hospital, New Delhi), and your case has been allotted to me.
Thank you for sharing your symptoms clearly. I understand that increased anxiety and restlessness after starting medication can feel concerning.
Based on the information you have shared, your Vitamin B12 level (148) is low and definitely requires supplementation. However, the symptoms you experienced after the first dose such as anxiety, restlessness, head pressure, and ear discomfort are not typical side effects of Vitamin B12 and are more likely due to anxiety or body’s response rather than the medicine itself.
Your BP 113/77 is normal, so there is no concern from that side.
What you should do now
• Continue Vitamin B12 supplementation, as it is necessary
• You may take it after food to feel more comfortable
• Ensure good hydration and proper sleep
• Try to stay calm, as anxiety can amplify these sensations
⸻
Important point
These symptoms are usually temporary and settle on their own. Stopping B12 is not advisable when levels are low.
⸻
When to consult a doctor
• If symptoms persist or worsen over next few days
• If you develop palpitations, severe headache, or dizziness
⸻
Please remember that online guidance has its limitations. Monitoring your symptoms calmly is important.
For personalised consultation and reassurance, you can reach out to me directly on
WhatsApp at 85271646 seven seven.
Wishing you good health and recovery.
Dr. Romain Rajan
General Physician
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Continue your b12 supplements, no worry.
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It's normal.
B121500 mvg have no side effects. I had consume it for 3 months, at present my daughter in law consume regularly. No any problem.
It's anxiety.
Tab Ciplar LA 20 one after breakfast or right now.
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Dr. Nimmi Mulwani
General Physician
10 yrs exp
Ahmedabad
Please continue the medicines
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
7 yrs exp
Rajahmundry
Need a few more details please consult for further evaluation and treatment
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Dr. Sajid Ali
General Practitioner
4 yrs exp
Kanpur
Becosule once a day
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Dr. Gaurav Jaiswal
General Physician
6 yrs exp
Jhansi
Avoid fried and spicy food
Water intake more
Do connect and consult
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Dr. Suraj Sharma
General Practitioner
4 yrs exp
Jaipur
Do consult
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Dr. Marini Vanitha
General Physician
12 yrs exp
Kakinada
Not related to tablet. You can continue the medication.
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Dr. Sachin Bhiwaji Sanap
General Practitioner
7 yrs exp
Hingoli
It’s normal no need to stop medication just continue to take b12
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