Siegfried is a trusted partner for APIs used in cough, cold and allergy medicines, such as Caffeine, Pseudoephedrine, Oxymetazoline or Xylometazoline. Our dedicated, world-scale manufacturing in Minden is the only of its kind in the Western hemisphere backed by strong commitment to regional supply sources secure independency and flexibility. With more than 75 years of experience, Siegfried stands for reliability and consistent long-term supply performance.
7 API products
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Product nameand CAS number
Regulatory documentation
Therapeutic area
Formulation type
Product class
Amylmetacresol (AMC)
1300-94-3
CEP
Antiseptic agent
Lozenges
Cough, cold & allergy
Benzonatate
104-31-4
USDMF
Antitussive
Capsules, Oral solid
Cough, cold & allergy
Caffeine Anhydrous
58-08-2
BDMF, CEP, JDMF, USDMF
Stimulant
Oral liquid, Oral solid, Topical
Cough, cold & allergy
Oxymetazoline HCl
2315-02-8
CEP, JDMF, USDMF
Decongestant
Nasal topical, Ophthalmic, Topical
Cough, cold & allergy
Pseudoephedrine HCI
345-78-8
CEP, USDMF
Respiratory system
Oral liquid, Oral solid, Oral solid long-acting
Controlled substances, Cough, cold & allergy
Pseudoephedrine Sulphate
7460-12-0
ASMF, CAN DMF, USDMF
Respiratory system
Oral liquid, Oral solid, Oral solid long-acting
Controlled substances, Cough, cold & allergy
Xylometazoline HCl
1218-35-5
CEP, USDMF
Decongestant
Nasal topical
Cough, cold & allergy