aldomet

How long does Methyldopa stay in your body?

The elimination half-life of methyldopa is about 105 minutes (roughly 1.75 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. The label reports a single plasma half-life of methyldopa (105 minutes) and does not separate a distribution phase from a terminal phase, so this figure is the plasma/elimination half-life as given. Important: methyldopa's antihypertensive effect is produced by an ACTIVE central metabolite (alpha-methylnorepinephrine), and its pharmacodynamic duration far outlasts the parent's short plasma half-life — blood pressure returns to pretreatment levels only within 24-48 hours after withdrawal. The label does NOT quantify the metabolite's half-life, so no number is given for it. Kidney impairment: renal clearance (about 130 mL/min in normal subjects) is diminished in renal insufficiency, which prolongs the half-life. The label does not state separate half-life figures for older adults or hepatic impairment.

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: Methyldopa tablet — DailyMed label (Clinical Pharmacology, Pharmacokinetics and Metabolism).

Frequently asked questions

What does Aldomet treat?

Aldomet (Methyldopa) may be used to treat 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 does Aldomet work?

Aldomet is a central alpha-2 adrenergic agonist. These drugs activate alpha-2 receptors in the brainstem, which tells the nervous system to send out less norepinephrine and reduce sympathetic (fight-or-flight) signaling to the body. With less of this stimulation, blood vessels relax and heart rate slows, lowering blood pressure.

How is Aldomet rated?

pharmaranks gives Aldomet a composite score of 3.5 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.

How much does Aldomet 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 $225.00 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, Clonidine Hydrochloride — about $1.05 on the same basis.

Is there a coupon or discount for Aldomet?

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

Aldomet is marketed by Merck. You can see Merck's full profile, rating, and other products on pharmaranks.

Is Aldomet a brand-name or generic drug?

Aldomet is a brand-name product with the active ingredient Methyldopa. Lower-cost generic equivalents containing Methyldopa are available — ask your pharmacist.

Is Aldomet available over the counter?

No. Aldomet 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 Aldomet come in?

Aldomet is currently marketed as tablet, per the FDA's National Drug Code Directory.

What class of drug is Aldomet?

Aldomet is classified as central alpha-2 adrenergic agonist, per the FDA's Established Pharmacologic Class.

Is Aldomet FDA-registered?

Aldomet is on record with the U.S. FDA under application number NDA013400. You can verify this on its official FDA label.

Has Aldomet been recalled by the FDA?

Aldomet has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.

Is Aldomet safe?

There's no single safe-or-not verdict. pharmaranks gives Aldomet a recall-safety score of 70/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.