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About us

Our business units

We are a modern, independent, medium-sized family company with 125 years of experience in manufacturing and marketing pharmaceuticals and health products. Our many years of success are based on four key strengths:

We are experts in the treatment of vertigo, sleep disorders and hypertension. In these indications we offer original products, among others.
We produce and sell a broad range of generic medicines, with a focus on cardiovascular, pain, metabolic, neurological and psychiatric indications, as well as erectile dysfunction.
In addition to prescription preparations, we offer an array of innovative health products for self-medication. The range of applications includes lice, warts, mosquito repellent and dietary supplements.
The fourth pillar comprises our contract manufacturing with modern production facilities, specialising in sophisticated products with the time-controlled release of active ingredients, e.g. sustained-release tablets.

The team at HENNIG ARZNEIMITTEL consists of 280 employees, around 70 of whom work in field sales, visiting hundreds of doctors and pharmacists across Germany every day.

Managing Partners

We are an independent, medium-sized family company. The two brothers, Holger and Dr Kai Schleenhain, share management obligations. They both joined and assumed management of the company in 2006, after their parents had begun to take a step back. Since then, their focus has mainly been on taking the original preparation for vertigo global and expanding the product portfolio to include a number of new launches and over-the-counter products. Holger and Dr Kai Schleenhain have been managing partners of HENNIG ARZNEIMITTEL since 2016.

Holger Schleenhain

[Translate to English:] Portrait Holger Schleenhain

Profile: Holger Schleenhain
Position: managing partner
Area: finance and human resources
At the company since: November 2005

Philosophy: 'A company is only as good as its employees. We believe that not only should the quality of our pharmaceuticals meet the most stringent requirements, but so should the professional and social expertise of the people in direct contact with our customers. The corporate culture at HENNIG ARZNEIMITTEL is characterised by respect, honesty, responsibility and quality. This is also the kind of partnership that we strive for with our customers.'

Dr. med. Kai Schleenhain

[Translate to English:] Portrait Dr. med. Kai Schleenhain

Profile: Dr Kai Schleenhain
Position: managing partner
Area: marketing and sales
At the company since: February 2006

Philosophy: 'The rapid changes to health policy demand a high level of flexibility and dedication from every employee at our company, HENNIG ARZNEIMITTEL. We believe that not only do the big fish eat the little fish, but the fast fish also eat the slow fish. This is why we take advantage of our status as an independent family company when making all our decisions. At the same time, the steady expansion of our product range ensures our long-term success.'

das Hennig Gebäude — Welcome in our central office in Flörsheim / Frankfurt a. M.

Dr. med. Kai Schleenhain und Holger Schleenhain — Managing partners Dr. med. Kai Schleenhain and Holger Schleenhain

Progress in the SME sector

HENNIG ARZNEIMITTEL is one of the 10,000 most significant small and medium-sized enterprises. Worldwide, the 'German Mittelstand' is a synonym for technological prowess, innovation and entrepreneurship.

[Translate to English:] Mittelstand 10.000

One thing that all SMEs have in common is that ownership, performance and hope make them stronger and ensure consistency. They often specialise in certain products and establish a niche. SMEs also account for the vast majority of companies in Germany and for around 60% of all jobs. The 'German Mittelstand' ranges from small workshops to what are referred to as hidden champions – unknown companies that are market leaders in their respective industries. HENNIG ARZNEIMITTEL is proud to be part of this powerhouse of innovation. To the ranking

Where did we come from?

It all started in Berlin. Chemist Max E. Hennig founded his company here in 1898 at the age of only 23. To begin with, all that he produced were tinctures made from organ and plant extracts. After the death of Max E. Hennig, Kurt Moschner, grandfather to the current managing partners, the Schleenhains, took over the company and moved to Flörsheim in the Rhine-Main region in 1951. This is where the development of chemically synthesised pharmaceuticals began in the company's own laboratories. To this day, HENNIG ARZNEIMITTEL has remained a traditional family company, with its own on-site production facility in Flörsheim.

So far, four generations of owners have had a lasting impact on shaping the HENNIG ARZNEIMITTEL business. Every generation has had a particular focus, from which each of today's four company pillars has developed.

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