What We Are Offering

Our activity
Contract research organization

CRO services are in strict compliance with international regulatory requirements, are high quality and cost-effective.

Centre for Applied Pharmacokinetic Research

For any developing country, it is necessary to have a well-developed health care system.


Our aim is to provide our customers with high quality, effective, safe medicines that will be accessible to a wide range of consumers. 

Representative activity

Our representatives staff is composed of skilled medical specialists.

Wholesale of medicines

We cooperate with oustanding companies worldwide and supplies medicinal products to all pharmacies of RA.


"Tonus-Les Remedy" pharmacy chain has more than 50 pharmacies in Yerevan and regions of RA.

Our products


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InovaTon-Energy of youth!

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FerSiFol Tonus - Iron (ferrous bisglycinate) 20mg, vitamin C 30mg, folic acid 300 mcg.

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Zinc Tonus

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D3 Tonus - Vitamin D3 2000 IU

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CaD3 Tonus - Calcium 500mg, vitamin D3 400 IU.

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Folat B9 Tonus - folic acid 400 mcg

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Silverton - 20mcg (20ppm) ionized silver

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Silverton Spray - 40mcg (40ppm) ionized silver

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Tonopenem - meropenem

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Ambroton - 3mg ambroxol hydrochloride

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Alcoton - Ethanol

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Tautonus - taurine 4%

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About Tonus-Les

“Tonus-Les” LLC, considering the key consumer safety and satisfaction, always follows and implements the best international experience.

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Our team

"Tonus-Les" is a big family with its successes and problems, which with all its pages is like an opera performance.


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Throughout its career, «Tonus-Les» has received numerous awards, diplomas, letters of gratitude, and even has got the honorable prize «European Quality» in the European Business Summit in Oxford, UK.

Our Achievement

2000 y․


2001 y․


2005 y․

Representative Office

2011 y․

Contract research organization

2016 y․

Centre for pharmacokinetic research

2018 y․


2019 y․