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Product Summary :
B Colex Injection is an injectable combination of vitamins B1, B9 and B3 used to prevent or treat relevant vitamin deficiencies when injections are required. These vitamins support energy production, DNA formation, healthy blood cell production and normal cell function. It is administered by a healthcare professional, and the dose depends on the patient's nutritional needs and medical condition.Written By Dr. Nikita Saini, MBA, MDS,
Reviewed By Dr. Dheeraj Kumar Sharma, PhD, M.Pharm,
Last updated on 06 Nov 2026 | 01:03 AM (IST)
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General Information
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Product introduction
B Colex Injection is a prescription medicine. It has a combination of vitamins that is prescribed to treat vitamin and other nutritional deficiencies. It ensures the proper growth and functioning of the body.
B Colex Injection injection is administered under the supervision of a healthcare professional. You are not advised to self administer this injection. Inform your doctor if you have any known allergy from this medication.
You may experience symptoms of injection site reactions such as redness, swelling, and pain. Usually, they go away with time but if these symptoms persist for a longer duration, please consult your doctor. Inform your doctor if you are suffering from any disease or are taking any medicines.
Uses of B Colex Injection
- Treatment of Nutritional deficiencies : B Colex Injection is used to provide thiamine (vitamin B1), folic acid (vitamin B9) and niacinamide (vitamin B3) when dietary intake is inadequate or supplementation by injection is considered necessary by a doctor.
Benefits of B Colex Injection
Treatment of Nutritional deficiencies
B Colex Injection helps replenish three essential B vitamins. These vitamins support energy production, normal cell function, DNA formation and the production of healthy blood cells.
B Colex Injection helps replenish three essential B vitamins. These vitamins support energy production, normal cell function, DNA formation and the production of healthy blood cells.
Side effects of B Colex Injection
Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of B Colex
- Limited data available
How to use B Colex Injection
Your doctor or nurse will give you this medicine. Kindly do not self administer.
How B Colex Injection works
B Colex Injection contains thiamine (vitamin B1), folic acid (vitamin B9) and niacinamide (vitamin B3). Thiamine helps the body convert carbohydrates into energy and supports nerve function. Folic acid is needed for DNA formation and the production of healthy blood cells. Niacinamide helps form substances which are required for energy production and other important cell functions. Together, these vitamins help replenish the body's vitamin stores and support normal body functions.
Dosage
B Colex Injection is administered by a healthcare professional as an injection. The dose and frequency depend on the patient's vitamin requirements, medical condition and response to treatment. Follow the schedule advised by your doctor.
Quick tips
- B Colex Injection should be administered only by a healthcare professional.
- Inform your doctor about any previous allergic reaction to vitamin injections, especially those containing thiamine (vitamin B1).
- Seek immediate medical attention if you experience difficulty breathing, swelling of the face or throat, or a severe allergic reaction after the injection.
- Tell your doctor if you have symptoms or a history of vitamin B12 deficiency. Folic acid may improve anaemia caused by vitamin B12 deficiency without preventing or treating the associated nerve damage.
- Follow a balanced diet containing whole grains, pulses, nuts, seeds, green leafy vegetables and other vitamin-rich foods to support your nutritional health.
Safety advice

Alcohol
CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with B Colex Injection. Please consult your doctor.

Pregnancy
CONSULT YOUR DOCTOR
Information regarding the use of B Colex Injection during pregnancy is not available. Please consult your doctor.

Breast feeding
CONSULT YOUR DOCTOR
Information regarding the use of B Colex Injection during breastfeeding is not available. Please consult your doctor.

Driving
SAFE
B Colex Injection does not usually affect your ability to drive.

Kidney
CONSULT YOUR DOCTOR
There is limited data available on the use of B Colex Injection in patients with kidney disease. Please consult your doctor.

Liver
CONSULT YOUR DOCTOR
There is limited data available on the use of B Colex Injection in patients with liver disease.
Frequently asked questions
B Colex Injection is used to replenish thiamine (vitamin B1), folic acid (vitamin B9) and niacinamide (vitamin B3) when the body does not get enough of these vitamins or when supplementation by injection is considered necessary. Your doctor will decide whether this injection is appropriate based on your nutritional status and medical condition.
Vitamin deficiencies can contribute to weakness and tiredness because vitamins B1, B9 and B3 are involved in energy metabolism and normal cell function. Replenishing a deficient vitamin may help improve symptoms caused by that deficiency. However, tiredness can have many other causes, so it is important to identify the underlying reason rather than relying on vitamin injections alone.
Folic acid is needed for the production of healthy red blood cells, and folate deficiency can cause a type of anaemia. However, not all types of anaemia are caused by folate deficiency. Vitamin B12 deficiency can also cause anaemia and nerve problems. Your doctor may recommend blood tests to identify the cause before prescribing treatment.
Yes. Allergic reactions can occur with vitamin injections, and thiamine injections have been associated with rare but serious allergic reactions. Warning signs include itching, hives, swelling of the face or throat, breathing difficulty or faintness. Seek immediate medical attention if any of these symptoms occur after receiving the injection.
Tell your doctor about all vitamins, multivitamins and nutritional supplements you are taking. Using multiple products containing the same vitamins may result in unnecessary or excessive supplementation. Your doctor can review your current supplements and decide whether any additional vitamin preparation is required.
Do not self-administer this injection unless your doctor has specifically arranged and demonstrated an appropriate home-administration plan. Vitamin injections can cause injection-site reactions and, rarely, serious allergic reactions. They should be administered by a trained healthcare professional who can manage an adverse reaction if it occurs.
The time needed to notice improvement depends on which vitamin is deficient, how severe the deficiency is and whether another medical condition is contributing to the symptoms. Some symptoms may improve gradually after vitamin levels are replenished. Follow the treatment schedule recommended by your doctor rather than expecting immediate improvement.
Fact Box
Habit Forming
No
Therapeutic Class
VITAMINS MINERALS NUTRIENTS
Related lab tests
References
- ScienceDirect. Folic Acid. [Accessed 23 Apr. 2019] (online) Available from:
- ScienceDirect. Niacinamide. [Accessed 23 Apr. 2019] (online) Available from:
- National Institutes of Health, Office of Dietary Supplements. Thiamin: Fact Sheet for Health Professionals. [Accessed 03 Nov. 2026] (online). Available from:
- National Institutes of Health, Office of Dietary Supplements. Folate: Fact Sheet for Health Professionals. [Accessed 03 Nov. 2026] (online). Available from:
- National Institutes of Health, Office of Dietary Supplements. Niacin: Fact Sheet for Health Professionals. [Accessed 03 Nov. 2026] (online). Available from:
- Thiamine Hydrochloride [Prescribing information]. Fresenius Kabi USA, LLC; 2026. [Accessed 03 Nov. 2026] (online). Available from:
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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
Marketer details
Name: Torque Pharmaceuticals Pvt Ltd
Address: C-83, Industrial Area, Phase 7, Mohali, Punjab (INDIA) – 160055
Address: C-83, Industrial Area, Phase 7, Mohali, Punjab (INDIA) – 160055
Vendor Details
Country of origin: India
Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)
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