Compounding is the ageless art and science of preparing customized medications.

We carry pharmaceutical grade nutritional supplements and skincare products. Make sure you visit our online store!

We compound bio-identical hormone replacement therapy for both men and women.

Whether you are in need of pain management assistance or veterinary prescriptions, we can compound customized medications to meet your specific needs!

Compounding Pharmacy serving patients and practitioners in Minnesota and Wisconsin

Online Store

Shop for high-quality professional grade vitamins, nutritional supplements, and skin care products.

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Read about customized therapies and special events in our monthly newsletter


To request a prescription refill, submit an online request using our online form.

Merwin Rx-Compounding Pharmacy is a full service compounding pharmacy that works with prescribers and patients to customize prescription medications throughout Minnesota and Wisconsin. Merwin has been a well-recognized and trusted name in pharmacy since 1903.