Siegfried is a trusted partner for controlled-substance active pharmaceutical ingredients (APIs), combining decades of experience with rigorous regulatory compliance and secure, reliable supply. As a fully backward integrated manufacturer and in-house accessibility to key raw material, we provide a fully independent supply chain and security of supply. Our strong governance, robust quality systems and proven manufacturing expertise enable customers to navigate highly regulated markets with confidence.
43 API products
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Product nameand CAS number
Regulatory documentation
Therapeutic area
Formulation type
Product class
Amphetamine Aspartate
51-64-9
USDMF
CNS stimulant
Oral liquid, Oral solid, Suspension
ADHD, Controlled substances
Amphetamine Sulphate
51-64-9
USDMF
CNS stimulant
Oral liquid, Oral solid, Suspension
ADHD, Controlled substances
Buprenorphine Base
52485-79-7
CEP, JDMF, USDMF
Analgesic, Opioid addiction
Injectable, Transdermal
Addiction treatment & abuse prevention, Controlled substances, Pain management
Buprenorphine HCl
53152-21-9
CAN ASMF, CEP, USDMF
Analgesic, Opioid addiction
Injectable, Oral solid
Addiction treatment & abuse prevention, Controlled substances
Butalbital
77-26-9
USDMF
Sedative
Oral solid
Controlled substances
Cannabidiol
13956-29-1
Open Part of DMF
Cannabinoid
Gummy, Oil, Topical
Cannabinoids, Controlled substances
Codeine Phosphate
41444-62-6
Canadian DMF, USDMF
Analgesic
Oral liquid combinations, Oral solid
Controlled substances, Pain management
Dexmethylphenidate HCl
19262-68-1
Swiss DMF, USDMF
CNS stimulant
Oral solid
ADHD, Controlled substances
Dextroamphetamine Saccharate
51-64-9
USDMF
CNS stimulant
Oral solid
ADHD, Controlled substances
Dextroamphetamine Sulphate
51-64-9
USDMF
CNS stimulant
Oral liquid, Oral solid, Suspension
ADHD, Controlled substances
Dronabinol in Oil
1972-08-03
USDMF
Cannabinoid
Gel cap
Cannabinoids, Controlled substances
Dronabinol Neat
1972-08-03
USDMF
Cannabinoid
Compounded
Cannabinoids, Controlled substances
Ephedrine HCI
50-98-6
CEP, USDMF
Respiratory system
Nasal topical, Ophthalmic, Oral liquid, Oral solid, Parental
Controlled substances
Ephedrine Sulphate
134-72-5
ASMF, USDMF
Respiratory system
Oral liquid, Oral solid
Controlled substances
Ephedrine Sulphate P
134-72-5
ASMF, USDMF
Respiratory system
Injectable
Controlled substances
Fentanyl Base
437-38-7
USDMF
Analgesic
Transdermal
Controlled substances, Pain management
Hydrocodone Bitartrate
34195-34-1
Canadian DMF, CEP, USDMF
Analgesic
Oral liquid, Oral solid
Controlled substances, Pain management
Hydromorphone HCI
71-68-1
Canadian DMF, CEP, USDMF
Analgesic
Injectable, Oral solid
Controlled substances, Pain management
Levomethadone HCl
125-58-6
CEP
Analgesic, Opioid addiction
Oral liquid, Oral solid
Addiction treatment & abuse prevention, Controlled substances
Lisdexamfetamine Dimesylate
608137-32-2
USDMF
CNS stimulant
Oral solid capsule
ADHD, Controlled substances
Methadone HCl
1095-90-5
CEP, USDMF
Analgesic, Opioid addiction
Injectable, Oral liquid, Oral solid
Addiction treatment & abuse prevention, Controlled substances
Methylnaltrexone Bromide
73232-52-7
USDMF
Opioid antagonist
Injectable, Oral solid
Addiction treatment & abuse prevention, Controlled substances
Methylphenidate HCl
298-59-9
CEP, USDMF
CNS stimulant
Oral solid
ADHD, Controlled substances
Morphine Sulfate
6211-15-0
CEP, USDMF
Analgesic
Injectable, Oral solid
Controlled substances, Pain management
Nabilone
51022-71-0
CDMF, USDMF
Cannabinoid
Oral solid
Cannabinoids, Controlled substances
Nalbuphine HCI
20594-83-6
On request
Analgesic
Injectable
Controlled substances, Pain management
Nalmefene
55096-26-9
USDMF
Opioid antagonist
Oral solid
Addiction treatment & abuse prevention, Controlled substances
Naloxone HCl
357-08-4
CEP, USDMF
Opioid antagonist
Injectable, Nasal
Addiction treatment & abuse prevention, Controlled substances
Naltrexone Base
16590-41-3
USDMF
Opioid antagonist
Injectable
Addiction treatment & abuse prevention, Controlled substances
Naltrexone HCI
16676-29-2
BDMF, CDMF, CEP, KDMF, USDMF
Opioid antagonist
Oral solid
Addiction treatment & abuse prevention, Controlled substances
Oxycodone Base
76-42-6
USDMF
Analgesic
Oral solid
Controlled substances, Pain management
Oxycodone HCl
124-90-3
CDMF, CEP, KDMF, USDMF
Analgesic
Oral solid
Controlled substances, Pain management
Oxymorphone HCl
357-07-3
USDMF
Analgesic
Oral solid
Controlled substances, Pain management
Pentobarbital Sodium
57-33-0
USDMF, USVMF
Human sedative, Veterinary euthanasia
Injectable
Controlled substances
Phenobarbital Sodium
57-30-7
USDMF
Anticonvulsant, Hypnotic, Sedative
Injectable, Oral liquid, Oral solid
Controlled substances
Phentermine Base
122-09-8
AUS ASMF, NZ ASMF
Anorexic
Capsules
Controlled substances
Phentermine HCl
1197-21-3
AUS ASMF, USDMF
Anorexic
Oral solid
Controlled substances
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
Psilocin
520-53-6
Psychedelic
Oral liquid, Oral solid
Controlled substances
Psilocybin
520-52-5
USDMF
Psychedelic
Oral liquid, Oral solid
Controlled substances
Tapentadol
175591-09-0
USDMF
Analgesic
Oral solid
Controlled substances, Pain management
Tilidine HCL
255733-17-6
CEP
Analgesic
Oral solid
Controlled substances, Pain management