Virosil Pharma – A Swiss eco-friendly disinfectant

Sanosil Biotech, a Mumbai based company is the first company to pioneer the novel concept of eco-friendly fumigation in sterile areas completely replacing the use of carcinogenic proven formalin. The product Virosil Pharma is based on Hydrogen Peroxide (H2O2) with Silver ions. The combination of these two ingredients gives a synergistic broad spectrum of activity on all kinds of viruses, bacteria, fungi, yeasts, molds, protozoa and algae. It is a clear, colourless, odourless, tasteless disinfectant which is non-carcinogenic, non-mutagenic, revolutionary and can be used where other chlorine based disinfectants have been feared.

Virosil Pharma is presently being used in organizations and institutions such as Pfizer, Cipla, Dabur, SunPharma, J&J, Abbott, Serum Institute, Dr. Reddy’s, Lupin Labs, Cadila Healthcare, Wockhardt, Biocon, Astrazeneca, Reliance Life Sciences, etc., as a very effective fumigant and disinfectant providing an environment with microbial containment and a completely safe and sterile environment

Virosil Pharma effectively protects critical surfaces that come in contact with pharma products. Manufacturing, filling, packing and storage areas; Instruments, equipment, water tanks and pipelines – can now be pathogen free.

What’s more, there’s no need to re-wash disinfected surfaces or instruments since H2O2-based Virosil Pharma safely decomposes into water and oxygen.

The formulation has been tested in various reputed institutions in Switzerland, France, Germany, Australia and India.

MIC determination – Method Based on modified BSEN1276 (antifungal), BSEN 1650(antibacterial)


To determine the minimum inhibitory concentration (MIC) of Virosil against standard microbial cultures.

Test Organisms

1) Escherichia coli ATCC10536
2) Staphylococcus aureus A TCC6538
3) Pseudomonas aeruginosa ATCC9027
4) Candida albicans ATCC 10231
5) Aspergillus nigerATCC 16404

RESULTS TABLE 1- Count of standard culture inoculum used


1.) The Minimum inhibitory Concentration of the disinfectant sample Virosil was determined at different concentration – contact time combination and against 5 different standard microbial respectively.

The Criteria for passing the MIC was chosen as
> 5 log reduction in Bacterial counts (BSEN 1650)
> 4 log reduction in Fungal counts (BSEN 1276)

2) Virosil was effective in inhibiting all bacterial and fungal cultures under study, at a contact time of 15 minutes and concentration of 5%

MIC determination – Method Based on modified BSEN1276 (antifungal), BSEN 1650(antibacterial)

Virosil Pharma not only successfully penetrates bio-films and eliminates bacteria but also maintains a long residual level of disinfection in water tanks and pipelines.

Using Virosil Pharma overcomes the disruption problem because it is absolutely safe to leave it in the water. Better still, the longer it’s in the water, the better the results since it will attack the biofilms which harbour most of the bacteria populations.

VIROSIL PHARMA For bacteria- free surface & Pipelines

How effective is it?
Even at low dosages, Virosil Pharma has the power of penetrating bio-film and killing the actual bacteria, thereby providing a long residual level of disinfection

How safe is it ?
It cannot pollute waste water, because it breaks down into water and oxygen, i.e. it produces no noxious by-products.

How does it compare to chlorine?
Virosil Pharma is superior to chlorine since it imparts no taste or odour to the water and is highly effective at both hot and cold temperatures

How does it work ?
H2O2 is a strong oxidising agent (more powerful than chlorine or chlorine dioxide). The oxygen separated from H2O2 destroys the biofilm, enabling the silver to help destroy any bacteria or virus.

For further information and samples, please contact:

Mr. Dev Gupta, CEO. Sanosil Biotech Pvt. Ltd. Warden House, 1st floor,
Sir P.M. Road, Fort, Bombay 400 001.
Tel No. 022 22872295 / 43112700
Mobile: 919820016292