
Aqua E 400MG Cap
Troikaa Pharmaceuticals - Capsule - 400 mg - 10 S
Methylcobalamin (2.5mg/ml)
Rhinocobal Nasal Spray is used for this medicine is used in the treatment of vitamin b deficiency, nerve pain and tingling, anaemia and tiredness due to deficiency.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated September 2026
Rhinocobal Nasal Spray contains Methylcobalamin (2.5mg/ml). It belongs to the B-complex vitamin class of medicines.
Methylcobalamin replaces a B vitamin your body needs to make red blood cells, to keep nerves healthy and to release energy from food.
Blow your nose gently, then insert the nozzle into one nostril, close the other and breathe in as you press. Aim slightly away from the middle of your nose. Follow the dose and the duration written on your prescription.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Apply it as soon as you remember. If it is nearly time for the next application, skip the missed one — applying extra does not make up for it.
An overdose of this medicine is unlikely to cause serious harm, because the body passes surplus B vitamins out in the urine. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Most side effects of Rhinocobal Nasal are mild and settle as the body adjusts. Reported side effects include:
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
| Pregnancy | Generally considered safe in pregnancy. Tell your doctor if you are pregnant or planning to be. |
|---|---|
| Breastfeeding | Generally considered safe while breastfeeding. |
| Alcohol | Alcohol may worsen the side effects of this medicine. Limit it. |
| Driving | Not expected to affect your ability to drive. |
| Kidney | Use with caution if you have kidney disease — your doctor may adjust the dose or monitor your kidney function. |
| Liver | No dose change is usually needed in liver disease. |
| Habit forming | No |
Tingling, numbness or burning in the hands and feet should be assessed by a doctor rather than self-treated — a supplement does not address the cause. Folic acid can mask a vitamin B12 deficiency while nerve damage continues, so B12 should be checked before taking folic acid long term. Bright yellow urine after a B-complex dose is expected and harmless.
Not for anyone with a known allergy to this medicine or to any ingredient in the pack.
Long-term metformin, acid-reducing medicines and some anti-epileptics lower B12 or folate levels. Tell your doctor if you take levodopa, as vitamin B6 can reduce its effect.
Store below 30°C, away from direct sunlight. Do not freeze. Keep out of the reach of children.
A supplement corrects a deficiency; it is not a general energy tonic. If you are on it for nerve symptoms, keep your review appointment so the underlying cause is looked for.

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The information on Rhinocobal Nasal Spray is compiled from the manufacturer's prescribing information and the sources below, and is reviewed by a registered medical practitioner. It does not replace advice from your own doctor.