Dipyridamole: uses, dosing, side effects & brands
Dipyridamole is a platelet aggregation inhibitor sold in the U.S. under 2 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Drug class
- Platelet Aggregation Inhibitor
- Available as
- Injectable · Tablet
- Sold as
- 2 products — Dipyridamole and Persantine
- Prescription?
- Prescription only
- Generic available?
- Yes
- What the pharmacy pays
- about $7 for a 30-count supply — not your price
How Dipyridamole is dosed
From the FDA label for Dipyridamole (application ANDA087160). Other dipyridamole products — different forms, different strengths — are dosed differently. Follow the label for the one you were prescribed.
The dose of intravenous Dipyridamole Injection as an adjunct to thallium myocardial perfusion imaging should be adjusted according to the weight of the patient. The recommended dose is 0.142 mg/kg/min (0.57 mg/kg total) infused over 4 minutes. Although the maximum tolerated dose has not been determined, clinical experience suggests that a total dose beyond 60 mg is not needed for any patient. Prior to intravenous administration, Dipyridamole Injection should be diluted in at least a 1:2 ratio with sodium chloride injection 0.45%, sodium chloride injection 0.9% or dextrose injection 5% for a total volume of approximately 20 to 50 mL. Infusion of undiluted dipyridamole may cause local irritation. Thallium-201 should be injected within 5 minutes following the 4-minute infusion of dipyridamole. Do not mix Dipyridamole Injection with other drugs in the same syringe or infusion container. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Everything below is the FDA label for Dipyridamole (injectable). Dipyridamole is also sold as tablet, and those are different medicines to take — follow the label for the one you were prescribed.
Dipyridamole side effects
Adverse reaction information concerning intravenous Dipyridamole Injection is derived from a study of 3911 patients in which intravenous dipyridamole was used as an adjunct to thallium myocardial perfusion imaging and from spontaneous reports of adverse reactions and the published literature. Serious adverse events (cardiac death, fatal and non-fatal myocardial infarction, ventricular fibrillation, asystole, sinus node arrest, symptomatic ventricular tachycardia, stroke, transient cerebral ischemia, seizures, anaphylactoid reaction and bronchospasm) are described above (see WARNINGS ). In a study of 3911 patients, the most frequent adverse reactions were: chest pain/angina pectoris (19.7%), electrocardiographic changes (most commonly ST-T changes) (15.9%), headache (12.2%) and dizziness (11.8%). Adverse reactions occurring in greater than 1% of the patients in the study are shown in the following table: Less common adverse reactions occurring in 1% or less of the patients within the study included: Cardiovascular System Electrocardiographic abnormalities unspecified (0.8%), arrhythmia unspecified (0.6%), palpitation (0.3%), ventricular tachycardia (0.2%-see WARNINGS ), bradycardia (0.2%), myocardial infarction (0.1%–see WARNINGS ), AV block (0.1%), syncope (0.1%), orthostatic hypotension (0.1%), atrial fibrillation (0.1%), supraventricular tachycardia (0.1%), ventricular…
Who shouldn’t take Dipyridamole
Hypersensitivity to dipyridamole.
Every dipyridamole product we track (2)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
| # | Drug | Rating | Type | Form | Generic? | Pharmacy pays | |
|---|---|---|---|---|---|---|---|
| 1 | 72/100 | Prescription | Injectable | Generic | $7 | View → | |
| 2 | 72/100 | Prescription | Tablet | Generic | $7 | View → |
What dipyridamole pills look like
Imprint codes, colour and shape from the FDA’s labelling data. Match the imprint on your pill — or search any imprint.
Combination products containing dipyridamole
A combination is a different drug — different dosing, different warnings. It is listed here so you can find it, not so you can substitute it.
How long dipyridamole keeps
No dipyridamole label we read sets a separate limit for after opening, but they do specify how it must be stored — and the stability behind any date assumes those conditions.
Dipyridamole and breastfeeding
From LactMed, the US National Library of Medicine’s Drugs and Lactation Database — quoted, not rewritten.
Full LactMed record for dipyridamole: levels in milk, effects in breastfed infants, and the drugs it would consider insteadNo published information is available on the use of dipyridamole during breastfeeding, although labeling states that the drug is excreted into human milk. Until more data become available, dipyridamole should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant. If it is used by a nursing mother, monitor the infant for bruising and bleeding.
National Institute of Child Health and Human Development, record revised February 15, 2025. LactMed states its information is not a substitute for professional judgement.
What people report to the FDA about dipyridamole
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 4,587 reports naming dipyridamole, and the FDA flagged 91% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- fall600 reports
- hypotension573 reports
- cognitive disorder532 reports
- constipation507 reports
- depressed level of consciousness500 reports
- orthostatic hypotension493 reports
- balance disorder492 reports
- sedation complication473 reports
Read these as a signal, not a rate. A report does not mean dipyridamole caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved August 25, 2026.
Related calculators
Frequently asked questions
What is Dipyridamole?
Dipyridamole is a platelet aggregation inhibitor.
What kind of drug is dipyridamole?
The FDA classifies dipyridamole as a platelet aggregation inhibitor. If you are checking whether it is safe to combine with something else, the class is what matters — two drugs from the same class usually should not be stacked.
Can you take dipyridamole with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run dipyridamole against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What brand names is dipyridamole sold under?
We track 2 dipyridamole-containing products in the U.S.: Dipyridamole and Persantine. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.
What forms does dipyridamole come in?
Across the brands we track, dipyridamole is currently marketed as injectable and tablet, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic dipyridamole?
Yes. Our catalog lists 1 generic dipyridamole product alongside the brand versions. A generic has the same active ingredient and must meet the FDA's bioequivalence standard; it usually costs less. Ask your pharmacist which one your plan covers.
Cite this page
- APA
- pharmaranks. (2026, July 24). Dipyridamole: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/dipyridamole
- MLA
- “Dipyridamole: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/dipyridamole.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for dipyridamole on DailyMed (NIH) ↗.