Testosterone Therapy (TRT)
Testosterone is not a reason for being ineligible to donate.
Carter BloodCare has received a variance from the FDA specifically to provide no cost phlebotomies for donors while they are taking testosterone replacement therapy. One of the possible side effects of testosterone therapy is an increase in red cell production, sometimes to levels that can affect your health. The treatment for this is to have some of the excess red cells drawn from your body.
If your physician requires you to be drawn at an interval of eight weeks or longer and you meet donor criteria, you do not need to enroll in this program. You may donate at any neighborhood Carter BloodCare Donor Center or Mobile Drive. Like any other blood donor, you can walk in or schedule your own donations online. You may donate any product.
If you need to be drawn more often that 8 weeks or do not meet donor criteria…

If you do not meet eligibility criteria for blood donation or your physician requires phlebotomy more frequently than every eight (8) weeks, you must be enrolled in the testosterone program. To enroll, your physician must complete and submit an Enrollment/Prescription for Phlebotomy Form by email, fax, or mail. Enrollment is valid for one year and may be renewed annually. This form should also be used to renew or update an existing enrollment.
The form must be completed in full. Do not alter or add to the form, as this may delay processing.
You may complete the patient section and send the form to your physician for signature, or have your physician submit a completed form directly to the Donor Notification Department at Carter BloodCare.
As a member of the testosterone program, PHLEBOTOMY SERVICES ARE PROVIDED AT NO CHARGE TO YOU.
This is a donor-driven program. You and your physician determine when phlebotomy is needed. If the form indicates you can be drawn every two weeks, this establishes a minimum 14-day interval between procedures. It does not require you to donate every two weeks. Carter BloodCare does not monitor frequency beyond the minimum 14-day interval between phlebotomies.
You may donate at any Carter BloodCare Donor Center or mobile drive. You may only donate whole blood. Please note that only donors eligible for allogenic donation may be drawn at mobile drives. If you do not meet eligibility criteria, you will be directed to a Carter BloodCare Donor Center.
Some cardiac or lung issues may exclude you from being drawn at Carter BloodCare. If you have a history of cardiac and/or lung conditions, please contact Donor Notification by phone or email.
If you do not feel well or experience symptoms that may be related to testosterone therapy (e.g. high blood pressure, rapid pulse, feeling unwell because your blood is “too thick”, etc.), contact your physician immediately. Please note that Carter BloodCare does NOT provide emergency phlebotomy services.
If you discontinue testosterone therapy, please let us know and we will make the appropriate adjustments to your records.
Donor Notification can be reached weekdays 9:00 AM–5:30 PM by phone at (817) 412-5603, fax at (817) 417-5609, or email at DN@carterbloodcare.org.
The Prescription/Enrollment Form was revised on May 20, 2025. Please use the revised Prescription/Enrollment Form if you are enrolling or updating a current/expired form.
1. Download the Enrollment/Prescription for Phlebotomy Form
2. Complete the Patient Information section by typing in the information
3. Print/save the form with the Patient Information completed
4. Scan and email to your physician or take a hard copy to your physician for signature
5. Submit completed form with physician signature to DN@carterbloodcare.org or fill the form below.
Frequently Asked Questions
Do I need a prescription to donate in the testosterone replacement therapy (TRT) program?
You only need a prescription if you need your blood drawn more often than once every eight weeks, or do not meet regular donor eligibility criteria.
Can my blood be used for hospital patients while I am on testosterone?
Yes.
Can my blood be drawn for the testosterone replacement therapy program if I do not meet regular donor criteria?
Yes. You must submit a Enrollment/Prescription for Phlebotomy Form to Donor Notification. Please contact the Donor Notification Department by phone at (817) 412-5603 or by email at DN@carterbloodcare.org if you have questions or to discuss your enrollment.
What if I am unsure of I can donate or not?
Please check the Donation Eligibility page. If you’re still unsure if you can donate, please call Donor Notifications at (817) 412-5603 or email DN@carterbloodcare.org.
Can I donate double red cells while enrolled in the testosterone replacement therapy program?
No, only whole blood donations are drawn while enrolled in the testosterone replacement therapy program.
Is my physician required to use the Carter BloodCare form to enroll me in the testosterone replacement therapy program?
Yes. Carter Bloodcare’s enrollment form must be completely filled out and emailed or faxed to Donor Notification to ensure prompt enrollment.
Email: DN@carterbloodcare.org or Fax: (817) 412-5609
Can my blood be used for hospital patients if I am taking Propecia or Finasteride or any other medication that means I do not meet donor criteria?
No, but your blood can still be drawn in the testosterone replacement therapy program. You must submit a prescription form to Donor Notification. Contact Donor Notification by phone at (817) 412-5603 or email at DN@carterbloodcare.org.
To see a list of other common medications that may cause deferral, please check the Medications page.
Is Testosterone Therapy the same as a “hormone therapy”?
Testosterone therapy can be referenced as different names or phrases by healthcare providers, including but not limited to: hormone therapy, elevated red cells, Erythrocytosis due to testosterone, Secondary Polycythemia due to testosterone, TRT (Testosterone Replacement Therapy), thick blood, blood dump, red cells are high, my doctor said to have my blood drawn.