Pamorelin (Triptorelin)

Triptorelin acts on the gonadotropin‑releasing hormone pathway and is indicated for several hormone‑dependent conditions.

• Prostate cancer: provides androgen suppression to slow tumor progression.
• Endometriosis: reduces pelvic pain by suppressing estrogen production.
• Assisted reproduction: controls ovarian stimulation timing during in‑vitro fertilisation cycles.

• Triptorelin is a GnRH agonist that binds with high affinity to pituitary GnRH receptors. Continuous stimulation leads to down‑regulation of these receptors, causing a marked decrease in luteinizing hormone (LH) and follicle‑stimulating hormone (FSH) release, which in turn suppresses gonadal steroid hormone production.

Adverse reactions to Triptorelin may vary in frequency and severity.

Common Side Effects

• Hot flashes: transient warmth and sweating.
• Injection site pain: mild to moderate discomfort at the injection site.
• Headache: occasional mild to moderate headache.
• Nausea: occasional feeling of queasiness.
• Fatigue: general tiredness or lack of energy.
• Mood changes: irritability or mild depressive symptoms.

Serious or Rare Side Effects

• Cardiovascular events: hypertension, myocardial infarction or stroke.
• Severe allergic reaction: anaphylaxis, rash, or angioedema.
• Bone loss: osteopenia or osteoporosis with long‑term use.
• Hormonal crisis: adrenal insufficiency or severe hormonal imbalance.
• Liver dysfunction: elevated transaminases or hepatitis.
• Pituitary apoplexy: sudden hemorrhage into the pituitary gland.

When using Triptorelin, careful assessment and monitoring are recommended.

• Cardiovascular assessment: evaluate history of hypertension or heart disease.
• Bone health monitoring: assess bone mineral density for long‑term therapy.
• Hormonal status: monitor testosterone or estradiol levels during treatment.
• Allergic reactions: watch for signs of hypersensitivity at each administration.
• Drug interactions: review concomitant medications for potential interactions.
• Store at ambient temperature: keep in original packaging, protect from moisture and light.

Triptorelin may interact with several medicines; interactions are categorized by clinical significance.

Major Interactions (Avoid)

• Anticoagulants: may increase bleeding risk during injection.
• Hormone replacement therapy: can blunt intended hormonal effects.

Moderate Interactions (Monitor Closely)

• Corticosteroids: may exacerbate bone loss when combined long‑term.
• Antidepressants (SSRIs): potential for additive mood changes.
• Antihypertensive agents: blood pressure may fluctuate during hormonal suppression.
• Antiepileptic drugs: may alter hormone metabolism, requiring dose adjustments.