Manufacturer BioMarin Pharmaceutical, Inc. Please print and complete the forms below. Once completed, fax to the number indicated on the form.Required forms for Kuvan® (sapropterin dihydrochloride)Kuvan® (sapropterin dihydrochloride) Brand Therapy Referral Form(sapropterin dihydrochloride) Generic Therapy Referral Form https://www.kuvan.com/