Dostinex lowers prolactin levels, helping to balance hormones and improve symptoms like irregular menstruation or low libido. It is used medically to treat high prolactin conditions and by bodybuilders to prevent side effects from steroids that raise prolactin.
Each tablet contains 500mcg (0.5mg) of Cabergoline, a potent dopamine D2 receptor agonist that inhibits prolactin secretion by the pituitary gland. Medically, it treats hyperprolactinemia, pituitary adenomas, and related symptoms like infertility, galactorrhea, or sexual dysfunction. In bodybuilding, Dostinex is used off-label during cycles with prolactin-elevating steroids (e.g., Nandrolone, Trenbolone) to prevent gynecomastia, libido loss, and lactation. It also enhances mood and libido by increasing dopamine. Cabergoline has a long half-life (63–69 hours), allowing infrequent dosing, with effects starting within hours. It is FDA-approved for medical use but not for bodybuilding, and its off-label use is banned by WADA due to performance-enhancing potential, often sourced from black markets with purity concerns.,
Dostinex – Cabergoline 500mcg is taken orally, typically twice weekly for medical or bodybuilding purposes, with or without food. Users must follow medical guidance, monitor prolactin levels, and consult a healthcare professional, especially athletes, due to detectability in drug tests. Avoiding alcohol and prolonged use minimizes risks.
Benefits
Lowers prolactin for hormonal balance
Treats hyperprolactinemia symptoms (e.g., infertility, galactorrhea)
Prevents gynecomastia and libido loss in bodybuilding
Enhances mood and sexual function via dopamine
Improves energy and workout recovery
Long-lasting effects with infrequent dosing
Side effects
Despite its benefits, Dostinex – Cabergoline 100mcg may cause the following side effects:
Nausea, dizziness, or headache
Low blood pressure or fainting
Mood changes, anxiety, or compulsive behaviors
Gastrointestinal upset or constipation
Rare risk of heart valve issues with long-term use
Positive drug tests, as banned by WADA
These can be managed by starting with low doses.
Bodybuilding: Take during steroid cycles (6–12 weeks) with prolactin-elevating compounds; stop post-cycle. Medical: Take until prolactin normalizes, often 6–24 months, with blood tests every 4–8 weeks. Swallow whole with 300–500 ml water, with or without food. Do not exceed 400mcg/week without medical advice. Monitor prolactin and heart function regularly.,
How to administer
Dostinex – Cabergoline 500mcg is provided in tablet form and does not require reconstitution or injection.
Swallow tablets whole with a full glass of water
Take with or without food, preferably at consistent times (e.g., Mon/Thu)
Do not crush or chew tablets, as this may affect absorption
Store in a cool, dry place to maintain potency
Storage
Store at room temperature (59–86°F or 15–30°C), away from light and heat
Keep packet sealed tightly to protect from moisture
Avoid storage in damp areas like bathrooms
Keep out of reach of children
Half life & detectability
Half-Life: Approximately 63–69 hours, allowing twice-weekly dosing. Detection Time: Detectable in urine for up to 2–4 weeks, depending on dosage and metabolism. Cabergoline is banned by WADA.
