Blood donation in the United States
Straight answers to the questions donors ask most: who can give blood, which medications matter, what to eat first, how often you can donate and where to go.
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Most read questions
- Can you donate blood if you take lithium?
- Can you donate blood after a colonoscopy or endoscopy?
- Can you have sex after donating blood?
- How much blood is taken in a blood donation?
- Can you donate blood if you take Viagra or Cialis?
- What should you eat before donating blood?
- Can you donate blood if you are overweight or obese?
- Does drinking alcohol stop you from donating blood?
- What are the blood types?
- Can you donate blood after a CT scan or MRI with contrast?
- Can you drink coffee before donating blood?
- How much does a unit of blood cost?
This information is general and does not replace advice from a health professional. Your eligibility is always decided at the donor screening on the day of donation. Rules change, so confirm with the American Red Cross or the blood center where you plan to donate.