dynacirc
Dynacirc (Isradipine) is a medication used to treat Variant Angina Pectoris, Hypertension.
Isradipine · by Smithkline Beecham
Key facts
- Active ingredient
- Isradipine
- Form
- Capsule
- Strength
- Isradipine 2.5MG **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons** · Isradipine 5MG **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons**
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- May treat
- variant angina pectoris, hypertension
- Manufacturer
- Smithkline Beecham
- What the pharmacy pays
- ~$49.79 for 30 — not your price
- FDA application
- NDA019546
- Availability
- Discontinued (per FDA)
May treat (source: NIH RxClass)
Dosage forms
Capsule
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
Request a 90-day supply
Bulk fills usually lower the per-dose price vs monthly refills.
Use copay cards
Manufacturer copay cards & patient-assistance programs — especially for brand drugs.
Compare alternatives
A same-class option may cost less. See alternatives →
Frequently asked questions
- What does Dynacirc treat?
- Dynacirc (Isradipine) may be used to treat variant angina pectoris, hypertension, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
- How much does Dynacirc cost?
- Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $49.79 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins. Pharmacies pay less for a same-class option, Amlodipine Besylate — about $0.33 on the same basis.
- Is there a coupon or discount for Dynacirc?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Dynacirc. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Dynacirc?
- Dynacirc is marketed by Smithkline Beecham. You can see Smithkline Beecham's full profile, rating, and other products on pharmaranks.
- Is Dynacirc a brand-name or generic drug?
- Dynacirc is a brand-name product with the active ingredient Isradipine.
- Is Dynacirc available over the counter?
- No. Dynacirc is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Dynacirc come in?
- Dynacirc is currently marketed as capsule, per the FDA's National Drug Code Directory.
- Is Dynacirc FDA-registered?
- Dynacirc is on record with the U.S. FDA under application number NDA019546. You can verify this on its official FDA label.
Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
What people report to the FDA about ISRADIPINE
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 606 reports naming ISRADIPINE — the active ingredient in Dynacirc, and the FDA flagged 82% 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:
- hypertension34 reports
- dyspnoea32 reports
- nausea29 reports
- acute kidney injury26 reports
- asthenia25 reports
- renal failure24 reports
- diarrhoea23 reports
- hypotension22 reports
Read these as a signal, not a rate. A report does not mean ISRADIPINE 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 September 25, 2026.
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