Quick answer
An immunity drip is an IV infusion of vitamin C, B complex vitamins and N-acetylcysteine (NAC), nutrients with roles in normal immune and cell function. Research shows regular vitamin C slightly shortens colds but does not stop most people catching them. It does not replace vaccines, a healthy routine or medical care when you are ill.
When the monsoon arrives in Bengaluru, or a cold sweeps through your office, it is natural to look for extra support. An immunity drip is one option people ask us about. This guide explains what each ingredient does and what research on vitamin C and colds really shows. It also covers why a drip is never a substitute for vaccines or a doctor.
Key takeaways
- Vitamin C, B vitamins and NAC each play a part in normal immune and cell function.
- In a large Cochrane review, regular vitamin C did not reduce how often most people caught colds.
- Regular vitamin C did shorten colds slightly, by about 8% in adults and 14% in children.
- NAC helps your body make glutathione. One older trial found milder flu-like illness, but evidence is limited.
- An immunity drip is not a vaccine, an antiviral or a treatment for infection.
- At ivital it costs ₹3,500 per session, after a free consultation.
What is in an immunity drip?
The ivital Immunity Drip contains three ingredients. The clinician sets the exact dose of each after assessing you.
| Ingredient | What it is | Its role in the body | What the evidence shows |
|---|---|---|---|
| Vitamin C | A water-soluble vitamin and antioxidant that your body cannot store | Used by immune cells and helps protect cells from oxidative stress | Regular intake modestly shortens colds. It does not prevent them in most people. |
| Vitamin B complex | A group of water-soluble B vitamins | Helps your cells release energy from food and supports normal nerve and blood cell function | Important if you are low in them. Little evidence of extra benefit if your levels are already normal. |
| NAC (N-acetylcysteine) | A form of the amino acid cysteine | Supplies cysteine, which your body uses to make the antioxidant glutathione | One older trial in mostly elderly adults found milder flu-like illness. More research is needed. |
IV delivery gives near-complete bioavailability, close to 100%, because nutrients go straight into your blood. Oral absorption varies by nutrient and dose. With vitamin C, the share you absorb falls as the oral dose rises. That is why IV vitamin C reaches much higher blood levels than tablets can.
What does research say about vitamin C and colds?
Vitamin C and the common cold have been debated for decades. The best summary is a Cochrane review by Hemilä and Chalker, which pooled placebo-controlled trials covering more than 11,000 people.
What it found
- Catching colds: in the general population, regular vitamin C made almost no difference to how often people caught a cold.
- Under heavy physical stress: in marathon runners, skiers and soldiers training in very cold conditions, the risk of a cold was roughly halved.
- How long colds last: regular vitamin C shortened colds by about 8% in adults and 14% in children. Colds were also a little milder.
- Starting after symptoms begin: taking vitamin C once a cold had started showed no consistent effect.
So the honest summary is modest. Vitamin C matters, and staying topped up seems to help a little. The review did not test occasional IV drips, so its findings cannot be applied directly to one.
What does NAC add?
NAC is a form of cysteine, one of the three building blocks of glutathione. A review in the Journal of Nutrition lists NAC as an effective source of cysteine for making glutathione in the body. Glutathione is an antioxidant that also has roles in immune responses.
The best-known trial is from Italy in 1997. De Flora and colleagues gave 262 people, most aged 65 or over, NAC tablets or a placebo through the winter. The NAC group had fewer and milder flu-like episodes. However, rates of actual flu infection were similar in both groups. This is a single trial of tablets in older adults, so it cannot prove what an IV dose does for you.
Does an immunity drip replace vaccines or medical care?
No. Vaccines train your immune system to recognise specific infections, which no vitamin can do. The NHS vaccination guide explains how vaccines such as the flu jab protect people, especially those at higher risk. Ask your doctor which vaccines are right for you, such as a yearly flu vaccine.
See a doctor rather than booking a drip if you have:
- a high fever, especially in dengue or malaria season
- difficulty breathing, chest pain or a cough that brings up blood
- symptoms that are getting worse, or have lasted more than three weeks
- a weakened immune system, a chronic illness or are pregnant and feel unwell
Fever in Bengaluru often needs a blood test to rule out dengue. A drip cannot diagnose or treat it.
Who might an immunity drip suit, and what is a session like?
Who it may suit
It may suit healthy adults who want a vitamin top-up during a demanding period. Think heavy travel, exam season or a stretch of poor sleep. It may also appeal if you struggle to eat well. It works best alongside sleep, a varied diet, regular activity and up-to-date vaccines.
What happens during a session
Every treatment starts with a free consultation with a clinician. They ask about your health, medicines, allergies and any current symptoms. If the drip suits you, a small cannula is placed in a vein in your arm. You sit back while it runs, and sessions usually take 30 to 45 minutes. Home visits are available after a doctor consultation.
Realistic expectations
You should not expect to become immune to colds or flu. Some people simply feel refreshed after the fluid and the rest. Any benefit from steady vitamin C intake is small and builds over time.
Who should avoid it or check first?
Tell the clinician if any of these apply to you:
- Pregnancy or breastfeeding: check with your own doctor before any infusion.
- Kidney disease or kidney stones: high-dose vitamin C may not be suitable.
- Heart disease: extra fluid can put strain on the heart.
- G6PD deficiency: a review in the Indian Journal of Critical Care Medicine looked at reported cases of red blood cell breakdown linked to vitamin C. Most involved people with this condition, and many followed IV doses.
- Asthma: IV NAC can occasionally cause allergy-like reactions, so mention it.
- Medicines and allergies: mention everything you take and any past reaction to vitamins or drips.
- Current fever or infection: you may need a doctor first.
How much does an immunity drip cost in Bengaluru?
The ivital Immunity Drip costs ₹3,500 per session, and every treatment starts with a free consultation. Visit us at 4/16, 9th Main Road, Jayanagar 3rd Block, Bengaluru 560011. We are open daily from 10 AM to 6 PM, and home visits are available after a doctor consultation.
To book, call +91 91640 37377, message us on WhatsApp at +91 98440 09011 or use our contact page. You can also compare it with the Myers' Cocktail or read IV therapy 101.
Frequently asked questions
What is in an immunity drip?
The ivital Immunity Drip contains vitamin C, vitamin B complex and N-acetylcysteine (NAC). Each plays a part in normal immune and cell function, and NAC helps the body make the antioxidant glutathione. The clinician sets the exact dose after a free consultation.
Does vitamin C prevent colds?
For most people, no. A Cochrane review found that regular vitamin C did not reduce how often people in the general population caught colds, although it shortened colds by about 8% in adults and 14% in children. People under heavy physical stress, such as marathon runners, had roughly half the risk of a cold.
Can an immunity drip replace a flu vaccine?
No. Vaccines train your immune system to recognise specific infections, which no vitamin infusion can do. An immunity drip is a nutritional top-up, and you should ask your doctor which vaccines are right for you.
Should I get an immunity drip when I have a fever?
See a doctor first if you have a fever, especially during dengue or malaria season, as you may need a blood test. A drip cannot diagnose or treat an infection. The ivital clinician will also ask about current symptoms during your free consultation.
How much does an immunity drip cost in Bengaluru?
At ivital in Jayanagar, Bengaluru, the Immunity Drip costs ₹3,500 per session. Every treatment begins with a free consultation, and sessions usually take 30 to 45 minutes. Home visits are available after a doctor consultation.
References
- Hemilä H, Chalker E. Vitamin C for preventing and treating the common cold. Cochrane Database of Systematic Reviews, 2013 (PubMed)
- De Flora S, Grassi C, Carati L. Attenuation of influenza-like symptomatology and improvement of cell-mediated immunity with long-term N-acetylcysteine treatment. European Respiratory Journal, 1997 (PubMed)
- Wu G et al. Glutathione metabolism and its implications for health. Journal of Nutrition, 2004 (PubMed)
- Juneja D, Jain R, Nasa P. Vitamin C-induced hemolysis: meta-summary and review of literature. Indian Journal of Critical Care Medicine, 2022 (PubMed)
- NHS: Vaccinations
This article is general information, not medical advice. IV therapy isn’t right for everyone. Discuss your health history, risks and alternatives with a qualified clinician before treatment.



