Portfolio API and Controlled Substances

With Siegfried as your partner for active pharmaceutical ingredient needs, your business can expect more value through:


  • A wide portfolio of APIs focusing on anesthetics, pain/ addiction treatment applications, central nervous & respiratory diseases as well as caffeine for human health and Nutrition
  • Decades of experience in the manufacturing of active pharmaceutical ingredients
  • Leading expertise in supply of controlled substances
  • Outstanding quality & regulatory track record
  • Secure and reliable supply through close collaboration with key partners along the value chain

Whatever your requirements are with regards to active pharmaceutical ingredients, Siegfried will deliver more value for your business. 

Expect more with Siegfried as your preferred Service Partner

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Siegfried AG
Untere Bruehlstrasse 4
CH-4800 Zofingen

Phone: +41 62 746 1111
Fax: +41 62 746 1202

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