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What is Intex Pharma Cabergoline?
Intex Pharma Cabergoline is a pharmaceutical grade dopamine D2 receptor agonist used in bodybuilding to control prolactin elevation caused by 19-nor anabolic steroids including Nandrolone and Trenbolone. Each tablet contains 0.5mg of Cabergoline. With a half-life of 63 to 69 hours, twice-weekly dosing maintains stable plasma concentrations and consistent prolactin suppression throughout a cycle. Available from the Intex Pharma shop at £31.00 with same day UK despatch.
Cabergoline is FDA-approved under the brand name Dostinex for the treatment of hyperprolactinaemic disorders including prolactin-secreting pituitary adenomas. Its use in bodybuilding is for the same mechanism: suppression of excessive prolactin secretion from the anterior pituitary, addressed through the dopaminergic pathway rather than through oestrogen receptor blockade.
Why prolactin rises on certain steroid cycles
Not all anabolic steroids raise prolactin. The compounds that do are primarily 19-nor steroids — compounds lacking a carbon atom at position 19 on the steroid backbone. This structural feature gives them affinity for progesterone receptors in addition to androgen receptors. Progesterone receptor activation in the pituitary stimulates prolactin secretion. The result is elevated prolactin levels that persist throughout the cycle as long as the 19-nor compound remains active.
The 19-nor compounds most commonly associated with prolactin elevation in UK bodybuilding cycles are Nandrolone Decanoate, Nandrolone Phenylpropionate and Trenbolone in all its ester forms. Testosterone itself does not directly raise prolactin through this mechanism. Users who run testosterone-only cycles rarely need Cabergoline. Users who add Nandrolone or Trenbolone should have it available from the start of the cycle rather than waiting for symptoms to appear.
How Intex Pharma Cabergoline works
Prolactin secretion from the anterior pituitary is normally kept under control by dopaminergic inhibition. Dopamine, released from the hypothalamus, binds D2 receptors on pituitary lactotroph cells and suppresses prolactin output. When 19-nor steroids stimulate prolactin release through progesterone receptor activation, this dopaminergic brake is overwhelmed.
Cabergoline restores dopaminergic inhibition by binding D2 receptors directly with high affinity. Cabergoline does not reduce oestrogen. It does not block progesterone receptors. It works at the pituitary level to reimpose the dopaminergic brake on prolactin-secreting cells. Studies show a measurable drop in prolactin levels within three hours of the first dose in some users, with consistent suppression maintained throughout the twice-weekly dosing schedule due to the long half-life.
Symptoms of high prolactin on cycle
Elevated prolactin produces a specific set of symptoms that are frequently misattributed to oestrogen by users who reach for an aromatase inhibitor rather than Cabergoline. Understanding the distinction is clinically important because the two conditions require different interventions and treating one with the other’s tool produces no benefit.
- Nipple sensitivity and breast tissue changes. Prolactin-driven gynecomastia differs from oestrogen-driven gynecomastia in that it does not respond to aromatase inhibitors. If nipple sensitivity persists despite controlled oestradiol, prolactin is the likely cause.
- Erectile dysfunction and low libido. Elevated prolactin suppresses testosterone action at the tissue level and reduces dopaminergic drive. This produces a specific pattern of sexual dysfunction that does not resolve with oestrogen management.
- Mood disturbances and low motivation. Prolactin elevation reduces dopaminergic tone. The result is reduced motivation, anhedonia and mood flatness that is distinct from oestrogen imbalance symptoms.
- Watery discharge from nipples. Galactorrhoea in men is a specific sign of severely elevated prolactin. Its appearance requires immediate Cabergoline use and bloodwork confirmation.
- Fatigue and poor recovery. Persistent fatigue that does not correlate with sleep quality or training load can indicate elevated prolactin.
Dosing guide for Intex Pharma Cabergoline
Start at the lower dose and increase only if bloodwork confirms prolactin remains elevated. More is not better with Cabergoline. Overdosing produces side effects including nausea, dizziness and orthostatic hypotension without additional benefit once prolactin is in range. Take with food to reduce nausea. Evening dosing is preferred by many users as drowsiness is a common initial effect.
Cabergoline in PCT after a 19-nor cycle
Users who ran Nandrolone or Trenbolone should include Cabergoline in their PCT protocol alongside Intex Pharma Nolvadex and Intex Pharma Clomid. SERMs address the oestrogen receptor pathway to restart testosterone production. Cabergoline addresses the prolactin pathway that SERMs cannot reach. Running PCT without Cabergoline after a 19-nor cycle leaves elevated prolactin suppressing HPG axis recovery independently of the oestrogen mechanism the SERM is targeting.
Continue Cabergoline at 0.25mg twice weekly through the first two to four weeks of PCT. Confirm prolactin has returned to normal range with bloodwork before stopping. Prolactin should be included in the standard post-cycle bloodwork panel for anyone who ran a 19-nor compound.
Side effects
- Nausea. Most common side effect, particularly at the start of use. Taking Cabergoline with food significantly reduces this. Usually resolves within the first week.
- Dizziness and orthostatic hypotension. Cabergoline lowers blood pressure slightly through dopaminergic vasodilation. Standing up quickly can cause dizziness. Evening dosing when supine reduces this.
- Drowsiness. Common initially. Most users adapt within a week. Evening dosing manages this practically.
- Nasal congestion. Mild, transient and not a cause for concern.
- Mood elevation. Dopaminergic agonism often produces improved mood and motivation. This is generally a welcome effect rather than an adverse one at standard bodybuilding doses.
Frequently asked questions about Intex Pharma Cabergoline
What is Intex Pharma Cabergoline used for in bodybuilding?
Intex Pharma Cabergoline is used to control prolactin elevation caused by 19-nor anabolic steroids including Nandrolone and Trenbolone. It works as a dopamine D2 receptor agonist, restoring the dopaminergic inhibition of prolactin secretion that these compounds override through progestogenic activity. It prevents and reverses prolactin-related gynecomastia, sexual dysfunction, mood disturbances and other symptoms of hyperprolactinaemia on cycle.
Do I need Cabergoline on every steroid cycle?
No. Cabergoline is specifically required when the cycle includes 19-nor compounds such as Nandrolone or Trenbolone that raise prolactin through progestogenic activity. Testosterone-only cycles do not typically require Cabergoline. Cycles containing Deca, NPP or any Trenbolone ester should have Cabergoline available from the first week of the cycle rather than waiting for symptoms to develop.
How is Cabergoline different from an aromatase inhibitor?
Aromatase inhibitors reduce oestrogen by blocking the conversion of testosterone to oestradiol. Cabergoline reduces prolactin by restoring dopaminergic inhibition at the pituitary. These are entirely different mechanisms targeting different hormones. An aromatase inhibitor does not lower prolactin. Cabergoline does not lower oestrogen. Users on Nandrolone or Trenbolone cycles typically need both: an AI to manage oestrogen from testosterone aromatisation and Cabergoline to manage prolactin from 19-nor progestogenic activity.
What prolactin level requires Cabergoline?
The normal male prolactin reference range is approximately 2 to 18 mIU/L depending on the laboratory. Values above 25 mIU/L on cycle with 19-nor compounds typically indicate meaningful elevation that warrants Cabergoline use. Users experiencing symptoms of elevated prolactin including nipple sensitivity, erectile dysfunction or low libido on a Nandrolone or Trenbolone cycle should run prolactin bloodwork and begin Cabergoline if values are above the reference range.
Should I use Cabergoline during PCT after a Nandrolone or Trenbolone cycle?
Yes. Prolactin elevation from 19-nor compounds suppresses HPG axis recovery independently of the oestrogen mechanism that Nolvadex and Clomid target. Running PCT without addressing prolactin after a Nandrolone or Trenbolone cycle leaves a hormonal suppression pathway active that SERM therapy cannot reach. Cabergoline at 0.25mg twice weekly through the first two to four weeks of PCT alongside standard SERM therapy produces better recovery outcomes than SERMs alone.
Is Intex Pharma Cabergoline pharmaceutical grade?
Yes. Intex Pharma Cabergoline is produced to pharmaceutical grade standards and independently tested by Janoshik Analytical using HPLC and mass spectrometry. The Certificate of Analysis confirming identity, purity and concentration is available in the product gallery on the Intex Pharma shop before you order.
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