Please note, this OEL/ADE monograph also applies to levamisole hydrochloride (CAS RN 16595-80-5). Levamisole hydrochloride is the active laevo-isomer of tetramisole hydrochloride. Levamisole was commonly used as human antihelminthic and as an adjuvant in malignant disease (such as colorectal cancer therapy in conjunction with fluorouracil). It has also been tried in several conditions where its stimulant effect on the depressed immune response might be useful. Levamisole is used off-label as an adjuvant therapy in children with pediatric nephrotic syndrome, and it is registered as an orphan drug with the European Medicines Agency to treat steroid-sensitive nephrotic syndrome (SSNS). Because of serious side effects (agranulocytosis), it was withdrawn from United States (US) market. More recently, there are increasing health concerns related to its use as an adulterant in cocaine. At present, it is most commonly used as an antihelminth in veterinary medicine to treat parasitic infestation in animals, primarily in livestock (such as cattle, sheep, swine).

Affygility Solutions has an occupational exposure limit (OEL) and control band assignment for this active pharmaceutical ingredient (API). This monograph also contains the acceptable daily exposure (ADE) value.


CAS Registry Number:
Trade names:
Ergamisol®, Prohibit®, Levamed®
$679 USD


Why do you need this OEL Fastrac monograph?

OEL Fastrac monographs are a cost-effective and convenient way to meet the requirements for PDEs (ADEs) contained in the EMA Guideline on setting health based exposure limits for use in risk identification in the manufacture of different medicinal products in shared facilities (EMA/CHMP/CVMP/SWP/169430/2012), as well as PIC/S and ANVISA requirements, and to obtain the following information:

  • The numerical OEL and control band assignment needed to determine the level of required engineering controls and personal protective equipment
  • A listing of all cited references utilized in the derivation of the OEL and ADE
  • An expert review and discussion with respect to the critical endpoints of concern, the rationale for the choice of endpoints, and dose that is to be used in the derivation of the ADE (PDE), as required by the EMA's Guideline on setting health-based exposure limits for use in risk identification in the manufacture of different medicinal products in shared facilities

Benefits of OEL Fastrac monographs

  • Fully documented. Over 20 pages in length, with calculations and cited references.
  • Save time! Unsurpassed delivery with instant download.
  • Save money. Similar documents cost 5-12 times as much.
  • Stay current. Automatic notification of revisions.

How to order

To order an OEL/ADE monograph for Levamisole, just click the ADD TO CART button.


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Affygility Solutions’ OEL Fastrac service is an user-friendly system that enables us to make confident decisions and focus on moving the compound safely through our facility. We can quickly access the database to determine if a new drug is within the OEL Fastrac library, and if so, immediately download a detailed OEL banding report. The OEL Fastrac system has been a helpful tool in our overall EH&S program.
  • K. Rosenthal
  • Director of Manufacturing