Cabergoline - Zyvex Pharmaceuticals

Buy Cabergoline by Zyvex at XSteroids. This is a 2 mg cabergoline tablet, 100 to a box, and the compound behind it is one of the longest acting dopamine agonists in pharmacy. The page explains what the molecule does at the pituitary, how prolactin falls, what a user actually observes, how the label schedule works, why the 2 mg strength deserves caution, what it is used beside on a cycle, safety and storage.

Cabergoline is a prescription medicine, approved for hyperprolactinemic disorders caused by an idiopathic problem or a pituitary adenoma. The Zyvex box is not that pharmacy product: 2 mg is a strength associated with Parkinson disease therapy, the tablet is offered for research and bodybuilding purposes, and no trial has ever been run on this batch. Figures below are label and literature values quoted for reference.

What Zyvex Cabergoline Is and What You Are Buying

Cabergoline is an ergot derived molecule and a selective agonist at the dopamine D2 receptor. It arrives here as a white 2 mg tablet, one hundred per pack, with strength and count printed on the label. No filler list and no independent potency test for this batch has been published, so nothing beyond the printed details can be verified.

The strength is the first thing to understand. The pharmacy tablet is 0.5 mg, and the maximum recommended weekly dose in the approved indication is 1 mg twice weekly. A single 2 mg tablet is therefore a high strength presentation, comparable to products used in neurology rather than in prolactin clinics, and it puts a premium on splitting and on knowing why the tablet is being taken.

How Zyvex Cabergoline Works on Prolactin

Prolactin is produced by lactotroph cells in the anterior pituitary, and dopamine is the brake the brain applies to them. An ergot agonist such as cabergoline mimics dopamine at the D2 receptor, so the lactotrophs slow down and serum prolactin falls. Because the drug is long acting, the brake is held for days rather than hours.

In prolactinoma patients on long term therapy, prolactin normalised in about 93 percent of cases in a five year follow up. For men there is a second consequence: raised prolactin suppresses gonadotropin releasing hormone, and when prolactin comes down the gonadal axis and testosterone production recover. The molecule is also active at the 5-HT2B receptor, and that activity is the accepted explanation for the fibrotic valve reactions seen with dopamine agonists.

What to Expect from Zyvex Cabergoline

Prolactin responds within the first days, and the effect accumulates because the half life is 63 to 69 hours in healthy volunteers and longer in patients with hyperprolactinemia. A steady state therefore takes roughly a week or two of repeated dosing, and the same long tail means an effect persists for days after the last tablet.

What a user may notice depends on why it was started. Where prolactin was genuinely high, libido and drive often return and water retention around the chest reduces. Where prolactin was normal, there is nothing to correct and the tablet merely lowers a hormone that the body was using. Nausea, headache and light headedness on standing are the effects most often reported early in a course.

Zyvex Cabergoline Dosing and Schedule

The label schedule starts at 0.25 mg taken twice weekly, with increases of the same size at intervals of no less than four weeks, up to a maximum of 1 mg twice weekly. Nothing in that instruction is daily, and nothing in it approaches 2 mg at once, which is why the Zyvex tablet is normally split before use.

Why the Label Uses a Twice Weekly Schedule

The half life runs for days, so spacing doses is enough to hold prolactin down and reduces peak side effects such as nausea and dizziness. Starting low and moving slowly also allows the pituitary time to respond, and the interval of at least four weeks between changes is a safety margin rather than a convenience.

High Dose Use in Neurology Is a Different World

Parkinson disease therapy uses much larger daily amounts for years, and it is in that population that cardiac valvulopathy was first described. Data in prolactinoma suggests the risk stays low while the cumulative dose remains modest, and grows as the total climbs, so duration and total exposure matter more than a single tablet.

Stacking Zyvex Cabergoline in a 19-nor Cycle

Cabergoline has no approved role in a steroid cycle. In practice it appears beside compounds that raise prolactin, which in the user community means the 19-nor family: Trenbolone Esters by Zyvex and Nandrolone Esters by Zyvex. Users report it for libido and for nipple sensitivity that does not respond to estrogen control.

Estrogen control is a separate job, handled by an aromatase inhibitor such as Arimidex by Zyvex or Aromasin by Zyvex, or by a SERM in recovery. Taking cabergoline for a problem that is actually estrogenic adds side effects without fixing the cause, which is why a prolactin reading belongs before the first tablet.

Recovery and PCT With Zyvex Cabergoline

Recovery after a cycle rests on a SERM, either Nolvadex by Zyvex or Clomid by Zyvex, to which Proviron by Zyvex can be added where libido and SHBG support is wanted. Cabergoline is not part of that protocol and does not restart testosterone production; it changes prolactin, which is a different signal.

Where prolactin was elevated and normalised on cabergoline, stopping abruptly can let it climb again, so the exit is usually gradual and guided by a repeat panel. Because the drug clears slowly, a reduced schedule tapers itself over several days once doses are spaced out.

Zyvex Cabergoline Side Effects and Precautions

The common reactions are nausea, headache, dizziness, constipation, fatigue and orthostatic hypotension, which is a drop in blood pressure on standing. Less common but recognised are impulse control disorders, and rare but serious are cardiac valvulopathy, pericardial, pleural and retroperitoneal fibrosis.

The label asks for a cardiovascular assessment including echocardiography before starting, further echocardiograms every 6 to 12 months during treatment, and discontinuation if valvular regurgitation, leaflet thickening or pericarditis appears. Uncontrolled hypertension, ergot hypersensitivity and a history of valvular or fibrotic disorders are contraindications. Cabergoline is a prescription medicine; research use only.

Storage Instructions

Leave the box unopened in a dry cupboard at room temperature, clear of sunshine and well out of the way of children and pets, so that nobody swallows a tablet by accident. These tablets gain nothing from a fridge and should never go into a freezer. Look at the lot number and the expiry before the first dose, and throw out any tablet that is chipped, discoloured or fused to its neighbour.

Why Buy Cabergoline from XSteroids?

The tablet is one page of the Zyvex brand catalog at XSteroids, kept beside the auxiliary shelf, so a 19-nor cycle together with its ancillaries travels in a single order. Payments go through an encrypted checkout. Delivery to a US address normally takes 3 to 6 days, and a parcel sent abroad arrives in 12 to 26 days. The cards below name the compounds it is usually considered beside.