Anticoagulants (Blood Thinners): medications in this class

Overview

Anticoagulants reduce the blood’s ability to clot. They prevent stroke in atrial fibrillation, treat deep vein thrombosis and pulmonary embolism, and protect mechanical heart valves. Warfarin blocks vitamin K recycling, takes days to act and needs the INR blood test to keep the dose in range. The direct oral anticoagulants (DOACs) block a single clotting factor directly, act within hours, and have fixed doses with no routine monitoring.

The DOACs include apixaban (Eliquis), rivaroxaban (Xarelto), dabigatran (Pradaxa) and edoxaban. For mechanical valves and some other situations warfarin remains the only option. Bleeding is the main risk of all of them, and antiplatelet drugs such as clopidogrel, which act on platelets rather than clotting factors, are a different class with different uses.

Missing DOAC doses matters more than missing warfarin doses because their effect wears off within a day.

How the drugs in this class differ when you pay cash

Warfarin is generic, and it needs regular INR blood tests; ask where and how often yours will be done. The DOACs have been brand-only for most of their life; generic dabigatran exists, generic rivaroxaban is approved in all four tablet strengths, and apixaban generics have been approved but held back by patent settlements until later this decade. Ask the pharmacy whether a quote is for a generic or a brand, and whether it can supply a generic for your strength.

For a cash-paying patient on a DOAC, the manufacturer assistance program is the first check; the commercial co-pay cards do not apply to cash. Switching to warfarin is a clinical decision with real trade-offs that only the prescriber can make.

Medicines at a glance

How the medicines in this group are supplied and usually taken. Each guide has the full details.

• Apixaban
  Tablets (Eliquis), also in a 30-day starter pack, Tablets for oral suspension in packets (Eliquis, for children), Capsules for oral suspension (Eliquis Sprinkle, for children)
  Generic: No · Twice a day
• Rivaroxaban
  Tablets (Xarelto and generic); Xarelto also in a 30-day starter pack, Granules for oral suspension (generic; Xarelto being discontinued)
  Generic: Yes · See the guide
• Warfarin
  Scored tablets (Jantoven and generic)
  Generic: Yes · Once a day
• Dabigatran
  Capsules (Pradaxa and generic), Oral pellets in packets (Pradaxa)
  Generic: Yes · Twice a day
• Clopidogrel
  Film-coated tablets (Plavix and generic)
  Generic: Yes · Once a day

Medications

Which of these is right for a given person is a decision for the prescriber. The guides explain what each drug is, how it is supplied, and why its cash price varies between pharmacies. No page on this site shows a price; prices come from pharmacies responding to your actual prescription.

Questions worth asking

• Is a generic available for my anticoagulant and strength?
• Do I qualify for the manufacturer assistance program?
• What should I do if I miss a dose?
• Which painkillers and supplements raise my bleeding risk?
• Do I need to stop it before dental work or surgery, and who decides?