zantac 75

How long does Ranitidine Hydrochloride stay in your body?

The elimination half-life of ranitidine hydrochloride is about 2.5 to 3 hours — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. This is the elimination half-life in adults with normal kidney function, as the label states it. Ranitidine is not a prodrug, and its metabolites (N-oxide, S-oxide, desmethyl-ranitidine — together under ~6% of the dose) are not described by the label as active or longer-lasting than the parent, so there is no active metabolite that outlasts it. The label names two populations where the number changes: in older adults the half-life is 3 to 4 hours, because renal function declines with age; in significant kidney impairment (creatinine clearance 25-35 mL/min) the average plasma half-life was 4.8 hours in four patients, and the label says these parameters shift roughly in proportion to creatinine clearance. In liver impairment (compensated cirrhosis) the label reports only minor, clinically insignificant changes in half-life. Separately, note that ranitidine products were withdrawn from the US market in April 2020 at FDA's request over NDMA contamination; the label above remains the source of the pharmacokinetic figures.

This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: Ranitidine Tablets USP (Rising Pharma Holdings, Inc.) — DailyMed label, Clinical Pharmacology / Pharmacokinetics.

Frequently asked questions

What does Zantac 75 treat?

Zantac 75 (Ranitidine Hydrochloride) may be used to treat duodenal ulcer, peptic esophagitis, gastroesophageal reflux, stomach ulcer, zollinger-ellison syndrome, 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.

Is there a coupon or discount for Zantac 75?

pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Zantac 75. 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 Zantac 75?

Zantac 75 is marketed by Chattem Sanofi. You can see Chattem Sanofi's full profile, rating, and other products on pharmaranks.

Is Zantac 75 a brand-name or generic drug?

Zantac 75 is a brand-name product with the active ingredient Ranitidine Hydrochloride. Lower-cost generic equivalents containing Ranitidine Hydrochloride are available — ask your pharmacist.

Is Zantac 75 available over the counter?

No. Zantac 75 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 Zantac 75 come in?

Zantac 75 is currently marketed as tablet and tablet, effervescent, per the FDA's National Drug Code Directory.

Is Zantac 75 FDA-registered?

Zantac 75 is on record with the U.S. FDA under application number NDA020520. You can verify this on its official FDA label.