Certain medications can disqualify or defer you from donating plasma. Here are some medications that may prevent you from donating plasma, according to the search results:

• Blood thinners (anticoagulants)
• Immune suppressants
• Acne treatment
• Hair loss prevention
• Isotretinoin (Absorica, Claravis)
• Finasteride (Proscar, Propecia)

Its important to note that each plasma center may have different policies regarding medication deferrals, and some medications may only temporarily defer you from donating plasma. If you are taking any medication, its best to check with the plasma center to see if it will affect your eligibility to donate.