Ordering Information | Fax Order Form

Ordering Information

General Information

New accounts are always welcome! There are no minimum order requirements, and most orders placed before 2PM CST will be shipped the same day. Please note that prices are subject to change without notice.

Orders for Pharmaceutical Products

Sigma Pharmaceuticals ships products only within the United States and only to purchasers appropriately licensed in the United States.  A state license number must be provided upon ordering. Sigma Pharmaceuticals, LLC assumes no liability for purchaser or user compliance with state laws or review of professional or product literature.
Sigma Pharmaceuticals accepts all major credit cards for payment.  Payment on invoice with Net 30 terms is also available for accounts in good standing.

Delivery and Receipt

Sigma Pharmaceuticals, LLC is not liable for damages or loss resulting from delay of delivery. Contact our Customer Care Department at 1-800-779-3784 within thirty (30) days of receiving or discovering (when such defect was not visibly apparent upon receipt) damaged merchandise, but in no event later than ninety (90) days after receipt of the shipment. Claims for product shortage must be made within five (5) days of receipt of the shipment. 

Return Policy

All returns require prior authorization. To obtain a Return Authorization Number, please contact our Customer Care Department at 800-779-3784 within thirty (30) days of receipt of the product to be returned, and we will be happy to assist you.  All merchandise must be returned unopened in its original packaging and must be in resaleable condition.  A copy of the applicable invoice as well as the Return Authorization Number must be included with returned merchandise.

If you need to return a prescription drug product, our Customer Care Department will send you a Prescription Drug Return Authorization Form that must also be completed and included with the returned product. 

Please note that due to FDA regulations, we cannot accept returns of any prescription drug products that require refrigeration.  Refrigerated products are identified on your invoice with the notation, “Refrigerate upon receipt.”  Special order items are also not eligible for return. 

Approved returns should be sent to:

Sigma Pharmaceuticals, LLC
Attn: Returned Goods Department
955 236th St, Ste 1
North Liberty, IA 52317

Credit for returned merchandise will be issued only if such merchandise has been returned in accordance with this policy and only upon review by Sigma Pharmaceuticals of the products and quantities actually returned. 

Sigma Pharmaceuticals retains complete discretion regarding returns of product not shipped in error by Sigma Pharmaceuticals.

Fax Order Form

You can download a copy of our convenient fax order form by clicking on the following link:

Sigma Order Form