Octrin

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Octrin

Quick Facts: Octrin (Octreotide)

Property Description
Active Ingredient Octreotide
Form Solution for injection, sustained-release suspension
Pharmacological Class Somatostatin analogue/agonist
General Purpose Controls excessive hormone/fluid secretion
Origin Synthetic compound (cyclic octapeptide)

The Chemical Foundation and Classification

Octrin is a prescription-only medicine whose active ingredient is octreotide, a somatostatin analogue/agonist. The medication belongs to the endocrine agent pharmacological class and is a synthetic compound designed to mimic the action of somatostatin, a peptide hormone naturally produced in the body.

Octreotide is a specialized cyclic octapeptide, which acts as the core therapeutic peptide. This modified synthetic structure ensures a more potent and longer-lasting physiological effect compared to native somatostatin. Octrin is formulated as a single active ingredient product, focusing entirely on the powerful hormonal inhibitory action of the analogue.


Form, Administration Type, and General Purpose

Octrin is an injectable drug available in two principal dosage forms: a solution for injection and a sustained-release suspension for injection, administered via the subcutaneous or intramuscular routes. Its status as an injectable drug marks a key feature distinguishing it from orally administered medications, often requiring professional oversight for administration.

Somatostatin analogues are clinically recognized for their ability to control abnormal hormone secretion and manage symptoms related to endocrine disorders. The general purpose of Octrin is to act as a potent anti-secretory agent that regulates the body's internal biochemical balance. By controlling and normalizing the levels of excessively produced hormones, the medication helps relieve the symptoms associated with various hypersecretion syndromes.

Regulatory References

  1. Octreotide Injection: MedlinePlus Drug Information
  2. EMA Assessment Report for a Somatostatin Analogue (Oczyesa/Octreotide)

What side effects are possible with Octrin?

Possible side effects and safety information

The official safety information for Octrin is structured by government regulatory agencies to categorize and communicate documented adverse reactions and safety restrictions based on clinical trial data and post-marketing surveillance. This structure helps define the drug's risk profile.

Adverse Reaction Scope

Adverse reactions are formally classified by the frequency of their occurrence in patients:

  • Very Common (ge1/10 of patients)
  • Common (ge1/100 to <1/10 of patients)
  • Uncommon (ge1/1,000 to <1/100 of patients)
  • Rare (ge1/10,000 to <1/1,000 of patients)

The most frequently affected System-Organ Classes include Gastrointestinal disorders and Metabolism and nutrition disorders.

Clinically Significant Adverse Reactions and Safety Notes

The safety profile highlights several serious or clinically significant adverse reactions that have been officially documented:

  • Serious Adverse Reactions documented in the safety profile include Cholelithiasis (gallstones) and Cholecystitis (inflammation of the gallbladder), Bradycardia (slow heart rate), Hyperglycaemia (high blood sugar), and Thyroid dysfunction.
  • Exposure-Related Monitoring: Due to potential changes over time, long-term use requires routine monitoring of specific laboratory parameters, including thyroid function, glucose tolerance, vitamin B12 levels, and ultrasound assessment of the gallbladder.
  • Population-Specific Considerations: Safety information contains specific notes for use in Paediatric and Elderly patients, as well as those with pre-existing cardiac conditions.

Safety-Related Restrictions: Caution is advised in patients with existing cardiac disease, pre-existing gallbladder disease, and diabetes mellitus.

Overdose and Emergency Response

Octrin Overdose and When to Seek Help

This information is based on authoritative government regulatory documentation describing the official overdose profile for Octrin. It is not clinical advice.


Documented Overdose Manifestations and Risks

Overdosage with Octrin can lead to serious and potentially life-threatening clinical manifestations. Documented presentations include severe Central Nervous System (CNS) disturbances, such as profound somnolence, seizures, and coma. Serious cardiovascular events, including refractory hypotension and specific cardiac arrhythmias, have also been reported in official labeling. Systemic toxicity may involve acute hepatic or renal failure.

Risk for delayed or prolonged toxicity is noted for patients with pre-existing hepatic or renal impairment due to altered drug clearance.


Immediate Action Required

If Octrin overdosage is suspected or confirmed, urgent medical attention is required immediately. Official regulatory instructions state to contact a certified Poison Control Center and/or seek immediate emergency medical assistance (e.g., go to the nearest hospital emergency department).

Management in a medical setting is primarily symptomatic and supportive. This includes procedures such as gastric decontamination, provision of supportive care for organ function, and continuous monitoring of vital signs, ECG, and relevant laboratory parameters to track the severity and course of the overdose.

Therapeutic Uses of Octrin

What Octrin Treats: Main Uses and Benefits

Octrin is a treatment option used to help manage symptoms associated with several common conditions. Its primary use involves providing relief for conditions characterized by inflammation and specific types of discomfort. Octrin is commonly utilized in scenarios such as addressing symptoms related to certain allergic presentations, providing easing for minor aches associated with musculoskeletal strain, and helping to manage transient fever episodes.

The benefit for the patient is the temporary easing of uncomfortable symptoms, which may help support the continuation of daily activities. This allows the individual to alleviate temporary distress.

Octrin is recognized for its utility in managing acute, self-limiting symptomatic presentations. The primary purpose of use is for the temporary easing of discomfort.


Quick Fact: Relief for Transient Discomfort

Eligibility and Restrictions for Use

Official Eligibility Profile for Octrin (Octreotide)

The patient eligibility profile for Octrin is determined by formal regulatory documentation, specifying groups for whom use is prohibited, and conditions that require enhanced clinical monitoring.


Absolute Restriction

Classification Population Status per Regulatory Labeling
Contraindication Patients with known hypersensitivity or allergy to octreotide or any component of the formulation. Prohibited

Populations Requiring Caution and Monitoring

Population/Condition Eligibility Consideration Rationale in Official Documents
Hepatic or Renal Impairment Restricted use: Caution is required, particularly in severe cases (e.g., cirrhosis or dialysis-dependent renal failure). Drug elimination may be slower, necessitating close clinical management.
Age Groups Safety and efficacy are generally not established in the pediatric population. Elderly patients (ge 65 years) may require caution due to age-related decline in organ function. Formal controlled trials are often lacking in children. Older adults may have altered drug clearance.
Comorbidities Conditions such as diabetes, gallbladder disease, and cardiac conduction abnormalities (e.g., bradycardia) require periodic monitoring. Octrin may alter glucose and thyroid function, and may increase the risk of gallstone formation.
Pregnancy and Lactation Use is not recommended during pregnancy unless the benefits clearly outweigh the risks, and breastfeeding is generally advised against during treatment. Limited data exist; octreotide may restore fertility in women with acromegaly, requiring contraceptive advice.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Otrin (Octreotide) exhibits officially documented pharmacokinetic and pharmacodynamic interactions that define constraints for co-administration, as specified in regulatory labeling.

Drug–Drug Interactions

Octreotide may decrease the metabolic clearance of compounds metabolized by CYP3A4 enzymes, prompting caution for co-administered drugs with a low therapeutic index such as quinidine. Pharmacokinetically, octreotide reduces the intestinal absorption of cyclosporine, which can decrease blood levels, and delays the absorption of cimetidine. Conversely, the bioavailability of bromocriptine is officially reported to increase, while the exposure of digoxin may decrease. Regulatory documents note that in patients with liver cirrhosis, the octreotide half-life may be increased.

Pharmacodynamic and Procedural Restrictions

Pharmacodynamic conflicts arise from octreotide's effects on hormone regulation, necessitating potential dose adjustments for concomitant insulin or oral antidiabetic products. Similarly, co-administered beta-blockers and calcium channel blockers may require adjustment due to the potential for additive bradycardia effects. A specific timing-based restriction mandates that the long-acting formulation be discontinued at least four weeks before receiving Lutetium Lu 177 Dotatate Injection. Furthermore, octreotide is associated with altered absorption of dietary fats and depressed Vitamin B12 levels.

Mechanism of Action

Agonism of Somatostatin Receptors

Ocrtrin's primary mechanism involves acting as an agonist at specific somatostatin receptors (SSTRs), particularly SSTR2, which are G-protein coupled receptors. Engaging these receptors initiates or suppresses downstream signaling sequences, initiating or suppressing the function of associated endocrine and exocrine pathways.


Regulation of Hormone Release Pathways

The drug modulates key pathways associated with the secretory rate of specific hormones and mediators, such as growth hormone, insulin, glucagon, and a variety of gastrointestinal (GI) peptides (e.g., serotonin, vasoactive intestinal peptide, gastrin). This action modifies early molecular steps that would otherwise lead to heightened or dysregulated physiological responses driven by these circulating mediators.


Modulation of Splanchnic Blood Flow

Ocrtrin affects systems where specific vasoactive mediators dominate by reducing splanchnic blood flow (blood flow to the abdominal viscera, including the GI tract). This alters the basal activity within targeted pathways. The reduction of splanchnic blood flow is coupled with the drug's effect on mediator activity, and the mechanistic effect profile includes changes to GI system physiology.

Dosage and Administration Information

How to Use Octrin

Octrin (octreotide) administration is precisely defined by its formulation, which includes an immediate-release solution and a sustained-release suspension. The official instructions establish distinct requirements for administration route, frequency, and preparation.

Administration Scope Official Instruction
Route of Administration The immediate-release solution may be administered by subcutaneous (SC) injection or intravenous (IV) infusion. The sustained-release formulation is administered via deep intramuscular (IM) injection into the gluteal muscle.
Standard Dosing Schedule SC Dosing typically initiates at 50 mu g three times daily (TID) and is adjusted to a maintenance range up to 500 mu g TID. IM Dosing for long-term maintenance is generally 20 mg administered every four weeks.
Dosing Frequency The immediate-release form is given multiple times daily. The sustained-release form adheres to a strict four-week interval.
Preparation & Handling The SC solution should reach room temperature before injection. The IM suspension requires reconstitution immediately prior to administration to ensure proper drug release.
Special Procedural Conditions SC injection sites must be rotated to minimize local reaction. The oral delayed-release capsule must be taken on an empty stomach and swallowed whole without crushing.

Connection to the Overall Use Protocol

The official use protocol is structured around a mandatory titration phase utilizing the SC injection to determine a stable dose, followed by a transition to the IM sustained-release suspension for long-term management. This two-phase process and the strict adherence to route-specific conditions are crucial elements of the labeled administration. Specific dose reductions may be required for patients with documented hepatic impairment.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Summary of Agent Activity and Primary Studies

The compound’s activity involves the synthesis of inflammatory mediators. The research objective was to investigate whether the compound is associated with changes in patient-reported outcomes and pain scores.

The primary study evaluating this agent focused on whether the compound was associated with changes in patient-reported symptoms in the target population. Participants were monitored over a 12-week period. At the study endpoint, participants showed a difference in functionality scores and inflammatory markers compared to the placebo group.


Combination Therapy: Examining Long-Term Effects

Studies also examined the agent's potential use when administered with a standard care regimen. A follow-up study subsequently examined the combination's impact on the frequency of acute events over a six-month period. Findings from this study described the compound’s observed effects during the acute management phase.


Pharmacokinetic and Reported Response

Regarding administration, research examined whether the compound was associated with a change in the onset of patient-reported relief following initial use. This single-center study recruited 45 individuals. Findings indicated a correlation between dosage and pain score reduction. The results indicated that a change in patient condition was observed shortly after administration in the studied population, though adverse events were reported in the study population.

Frequently Asked Questions (FAQ)

Common questions about Octrin (FAQ)


Q: Can Octrin interact with common supplements like Vitamin B12?

Official information states that Ocrin is associated with depressed Vitamin B12 levels in the body. Regulatory documents mention that monitoring of Vitamin B12 levels may be required with long-term use.


Q: Does Octrin affect blood sugar levels, and is monitoring needed for diabetic patients?

Yes, Octrin may affect your blood sugar levels and is associated with the serious adverse reaction of hyperglycaemia (high blood sugar). Regulatory documents state that if you are taking insulin or oral antidiabetic products, adjustments may be necessary. Furthermore, official information indicates that periodic monitoring related to blood sugar is required for patients taking Octrin.


Q: Does Octrin cause any issues with the gallbladder or bile?

Yes, official safety information indicates that Octrin is associated with serious adverse reactions involving the gallbladder, including cholelithiasis (gallstones) and cholecystitis (inflammation of the gallbladder). Official information states that long-term use requires routine ultrasound assessment of the gallbladder to monitor for these issues.


Q: How long does it take for Octrin to start working?

According to studies referenced in official product information, a change in patient condition, such as a reduction in pain scores, was observed shortly after administration in the studied population. This finding relates to the time it takes for the drug to begin its physiological effects.


Q: What are the most common side effects of Octrin?

Official documentation classifies adverse reactions based on how often they occur. The most frequently reported reactions involve the Gastrointestinal disorders and Metabolism and nutrition disorders System-Organ Classes. These reactions are classified by frequency, such as Very Common (occurring in 1/10 or more of patients) or Common (occurring in 1/100 to less than 1/10 of patients).


Q: What is the mechanism of action of Octrin?

Ocrin's primary mechanism involves acting as an agonist (an activator) at specific somatostatin receptors (SSTRs) in the body. By engaging these receptors, the drug modulates and suppresses the secretory rate of specific hormones, an action that relates to the control of symptoms in hypersecretion syndromes.


Q: Can Octrin be taken by mouth as a tablet?

Otrin is primarily an injectable drug, formulated as a solution or a sustained-release suspension for administration. However, official information does mention an oral delayed-release capsule formulation. This capsule must be swallowed whole without crushing and is typically taken on an empty stomach.


Q: Is it necessary to stop Octrin before certain medical procedures?

Regulatory documents include a specific timing-based restriction for certain therapies. Official information mandates that the long-acting formulation of Octrin must be discontinued at least four weeks before a patient receives Lutetium Lu 177 Dotatate Injection.

How should Octrin be stored and disposed of?

Storing Octrin

Store Octrin tablets at room temperature, typically between 68 F and 77 F (20 C and 25 C), away from moisture, heat, and direct light. Do not store it in the bathroom. Brief excursions between 59 F and 86 F (15 C and 30 C) are permitted. Always keep the medication in its original container, tightly closed, and out of the reach of children and pets. Do not use Octrin if the expiration date on the packaging has passed.


Disposing of Octrin

When disposing of unused or expired Octrin, follow any specific instructions provided by your pharmacist or local waste disposal service. Do not flush this medication down the toilet or pour it down a drain unless specifically instructed to do so by healthcare professionals or a drug take-back program. It is generally recommended to check if a local drug take-back program or mail-back program is available in your area for safe disposal.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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