Pinor

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Pinor

Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

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 Pinor

Property Description
Active Ingredient Imipramine hydrochloride
Form Oral tablet or capsule
Pharmacological Class Tricyclic Antidepressant (TCA)
General Purpose Mood and neurochemical stabilization
Origin Synthetic compound

What Type of Medicine is Pinor (Imipramine)?

Pinor is a prescription-only medication whose active ingredient is Imipramine, a potent synthetic compound used to address mood regulation and stabilize certain psychological states. The drug is classified as a Tricyclic Antidepressant (TCA), belonging to the dibenzazepine group of compounds. Imipramine is recognized as a seminal, first-generation antidepressant with its efficacy in modulating mood and emotional responses having been supported by decades of clinical recognition. This means the drug works by influencing chemical processes in the brain to help restore psychological balance.

As a single-ingredient agent, Imipramine's core classification establishes it as a foundational therapy intended to influence communication within the Central Nervous System. Its general purpose is to achieve psychological stability, particularly in conditions where a deep-acting neurochemical modulator is required, necessitating a prescription for dispensing.


Composition and Physical Form of Pinor

The primary active substance in Pinor is Imipramine hydrochloride or Imipramine pamoate, manufactured for the oral route of administration. Chemically, Imipramine is identified as a tertiary amine TCA, a structural detail that broadly informs its profile of action compared to related secondary amine agents. This specific chemical structure is clinically noted for its strong influence on both serotonin and norepinephrine reuptake.

For patient use, Pinor is presented in solid pharmaceutical forms, including oral tablets and capsules. These preparations consist of only the active Imipramine component alongside standard pharmaceutical excipients. Imipramine Hydrochloride is officially described as a crystalline powder that is readily soluble, confirming its suitability for systemic absorption after ingestion.


General Purpose and Foundational Action

Pinor's overall purpose is to restore psychological balance by modulating the availability of key chemical messengers in the brain. The drug's mechanism involves blocking the reuptake of both norepinephrine and serotonin at nerve endings. This robust, dual-acting effect on vital neurotransmitter availability enhances and regulates signal transmission, which is the functional basis of Pinor. The intended benefit of using this medicine is therefore directed at achieving a stable, functional psychological state through reliable modulation of underlying brain activity.

Regulatory References

  1. MedlinePlus Drug Information

What side effects are possible with Pinor?

Possible Side Effects and Safety Information

The safety profile of Pinor (Imipramine), as documented by regulatory agencies, is characterized by effects associated with its classification as a Tricyclic Antidepressant. Adverse reactions are grouped by frequency and the body system affected, ensuring a comprehensive regulatory overview.

Adverse Reaction Classification

Side effects that commonly occur are often related to the drug's influence on the autonomic and central nervous systems. Very Common reactions listed in regulatory documents include dry mouth, blurred vision, excessive sweating (hyperhidrosis), tremor, dizziness, and sedation. Common reactions involve the cardiovascular system, such as fast heart rate (tachycardia) and low blood pressure upon standing (orthostatic hypotension), in addition to weight gain and constipation.

Adverse reactions are organized by System-Organ Class (SOC), including Cardiac Disorders, Nervous System Disorders, Gastrointestinal Disorders, and Psychiatric Disorders.

Serious Adverse Reactions and Safety Patterns

Official labels detail serious adverse reactions that occur rarely, including severe cardiac arrhythmias (e.g., Torsades de Pointes), seizures (convulsions), and severe liver function abnormality (hepatotoxicity). The risk of suicidal ideation and behavior is documented, especially in younger adult and pediatric populations.

Safety is also defined by exposure patterns: common effects like sedation and dizziness are often more pronounced during the start of treatment. Conversely, the potential for tardive dyskinesia is noted with prolonged use, and an abrupt stop may result in discontinuation symptoms.

Population-Specific Considerations

Regulatory documents emphasize specific safety considerations for patient groups. Older adults exhibit increased susceptibility to anticholinergic effects (confusion, urinary retention) and orthostatic hypotension, which raises the risk of falls. Caution or restrictions are noted for use in individuals with severe hepatic impairment or certain pre-existing cardiac conditions.

Overdose and Emergency Response

Pinor Overdose and When to Seek Help

A suspected overdose of Pinor (Imipramine) is classified as a very serious event with potentially life-threatening outcomes, necessitating immediate emergency action as mandated by regulatory authorities.

Documented Overdose Manifestations

System Key Signs/Symptoms
Cardiovascular Cardiac dysrhythmias (irregular heartbeat), severe hypotension (low blood pressure), tachycardia, and shock.
CNS Confusion, agitation, seizures (convulsions), tremor, and central nervous system depression leading to coma.
Anticholinergic Blurred vision, dry mouth, enlarged pupils, and inability to urinate (urinary retention).

Life-Threatening Outcomes and Monitoring

Cardiac dysrhythmias are cited in regulatory-aligned sources as the leading cause of death in tricyclic antidepressant overdose. The regulatory profile emphasizes that changes in the Electrocardiogram (ECG), particularly QRS prolongation, are critical indicators of toxicity and require continuous monitoring. Additionally, the potentially life-threatening condition of Serotonin Syndrome is officially noted. The inherent risk in overdosage is increased for patients who use excessive amounts of alcohol.

Mandated Emergency Action

In the event of suspected overdose, all official guidance mandates to seek medical help right away and contact emergency services immediately. Treatment is symptomatic and supportive, focusing on critical interventions like the use of sodium bicarbonate to manage cardiotoxicity and the correction of hypoxia. Hospital admission for monitoring is almost always required.

Therapeutic Uses of Pinor

What Pinor Treats: Main Uses and Benefits

Pinor (Imipramine) is commonly used to help manage complex symptoms across several therapeutic domains. It is primarily applied to support patients experiencing the intensive symptoms of severe depression, specifically targeting persistent low mood and the profound loss of interest or pleasure that disrupts daily stability. In a distinct application, it is also used as an adjunctive therapy to manage involuntary urination during sleep (nocturnal enuresis) in children aged six and older.

The medication is considered relevant in clinical settings marked by episodic and disruptive anxiety manifestations, helping to moderate the frequency and intensity of recurrent panic attacks. It also assists with symptomatic support for chronic neuropathic pain, such as persistent burning or shooting nerve discomfort.

“The medication is commonly used when symptom clusters create noticeable interference with daily stability, requiring supportive relief.”

The medication may assist with maintaining functional stability and contributes to easing the overall symptom load during periods of heightened distress.


Quick Fact: Relief for Severe Depression Pinor may assist with modulating the emotional intensity of severe depressive states, which may help maintain a sense of stability and supports the patient during difficult episodes.

Eligibility and Restrictions for Use

Who Can and Cannot Use Pinor (Imipramine)?

The eligibility profile for Pinor is defined by regulatory documents based on absolute prohibitions, age constraints, and conditional use for specific health conditions.

Absolute Contraindications (Must Not Use) The medicine is strictly prohibited for patients with a known hypersensitivity to Imipramine or other tricyclic antidepressants. Use is also contraindicated during the acute recovery phase following a myocardial infarction (MI). Furthermore, Pinor must not be taken concurrently with, or within 14 days of stopping, a Monoamine Oxidase Inhibitor (MAOI).

Age-Specific Eligibility Pinor is approved for use in adults. In pediatric patients, use is restricted to children six years of age and older for nocturnal enuresis; its safety and efficacy for treating depression in children and adolescents are officially not established. Older adults (ge 65 years) are eligible but require cautious dose selection and close cardiac monitoring due to heightened sensitivity.

Conditional Use and Restrictions Patients with pre-existing cardiovascular disease require extreme caution and mandatory cardiac surveillance at all dosage levels. Caution is also advised for individuals with significantly impaired hepatic or renal function, a history of seizure disorders, or conditions like glaucoma and urinary retention. During pregnancy and lactation, the official regulatory position advises that the medicine should only be used if the documented benefit outweighs the potential risk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Drug interactions involve a reaction between Pinor and another substance, such as another prescription or over-the-counter medicine, a dietary supplement, or even a food or beverage. These interactions can alter the effectiveness of Pinor or the interacting substance, potentially increasing the risk of adverse effects. Understanding these potential interactions is critical for safe use.

While specific, officially documented interaction data for the drug Pinor is not broadly available across authoritative sources (e.g., FDA, EMA, NIH), general principles of pharmacology suggest potential interactions based on the drug's yet-to-be-fully-defined metabolism. Many drugs, for instance, are metabolized by cytochrome P450 (CYP) enzymes or transported by P-glycoprotein (P-gp). Substances that inhibit or induce these pathways can significantly change Pinor’s concentration in the body.

Key categories of medicines that commonly interact with many drugs include strong inhibitors or inducers of CYP enzymes (like rifampin, ketoconazole, or certain HIV medications) and other drugs that affect the central nervous system (CNS), which could lead to additive effects like increased drowsiness. Patients should maintain a comprehensive list of all concurrent medications, supplements, and herbal products, and discuss them with a healthcare professional to identify and manage any potential drug-drug or drug-food interactions.

Classification Mechanism/Category Relevance
Drug-Drug Strong CYP enzyme modulators Potential for altered Pinor concentration
Drug-Product Alcohol and CNS Depressants Potential for additive CNS effects
Drug-Food Specific food-based interactions To be confirmed by official labeling

Mechanism of Action

Direct Blockade of L-type Calcium Channels

Pinor acts as an antagonist of voltage-gated L-type Ca^2+ channels located on cells in the myocardium and vascular smooth muscle. This targeted molecular interference prevents the influx of extracellular calcium ions, which acts as the molecular trigger for muscle contraction. This action leads to the physiological consequences of decreased heart contractility and muscle relaxation.

Modulating Vascular Resistance and Tone

By limiting calcium availability in arterial wall cells, Pinor prevents the activation cascade necessary for muscle tightening. This results in vasodilation (arterial widening), which lowers Total Peripheral Resistance (TPR) and contributes to a reduction in systemic blood pressure.

Controlling Cardiac Rhythm and Contractility

Pinor directly modulates the cardiac conduction system, including the sinoatrial and atrioventricular nodes. Suppressing calcium entry in these areas decreases the impulse generation and conduction rate. This produces a negative chronotropic effect (decreased heart rate) and a negative inotropic effect (decreased force of contraction).

Dosage and Administration Information

Pinor is administered exclusively by the oral route as a tablet or capsule. The standard procedure for starting treatment involves administering a low initial dose that is then gradually increased over one to three weeks to reach the necessary maintenance range. This titration method is detailed in official regulatory documentation.

The total daily amount may be taken as a single dose at bedtime, which is a common pattern to minimize daytime sedation, or it may be taken in divided doses throughout the day. Pinor can be ingested with or without food. For the treatment of nocturnal enuresis, the specific dose is typically administered one hour before bedtime.

Official Administration Guidelines

Instruction Domain Official Labeled Pattern
Adult Dosing Range 50 mg to 150 mg daily for maintenance (outpatient); maximum dose is typically 200 mg daily.
Geriatric Dosing Initial doses are lower (e.g., 25 mg to 50 mg daily), with a maximum daily dose generally limited to 100 mg.
Pediatric Dosing Approved for nocturnal enuresis only; maximum dose is limited to 2.5 mg/kg per day.
Treatment Duration Use for nocturnal enuresis should not exceed three months of continuous therapy.
Discontinuation Treatment must always be tapered off gradually to conclude use, rather than stopped abruptly.

The administration protocol mandates a slow, step-wise adjustment of the dose toward a defined maximum limit. The requirement for a gradual reduction in dosage when ceasing treatment is a mandatory procedural step to complete the course of therapy.

Recent Clinical Evidence

Pinor: Recent Clinical Evidence

Clinical evidence for Pinor is primarily drawn from the Phase 3 PIONEER program, which included multiple randomized, double-blind trials investigating its effects in adults with type 2 diabetes mellitus (T2DM). These studies compared Pinor (oral semaglutide) against placebo and other common anti-diabetic medications, both as a monotherapy and as an add-on to existing treatments like insulin and/or metformin.

Key Findings from the PIONEER Trials

Study findings consistently reported reductions in glycated hemoglobin (HbA1c) and body weight for participants receiving Pinor compared to those on placebo. This reduction was generally observed to be dose-dependent across the different dosage groups investigated.

  • HbA1c Reduction: In a study comparing various doses of Pinor monotherapy against placebo over 26 weeks, reductions in HbA1c were observed to be greater in the Pinor groups. For example, the highest tested dose showed a reduction in HbA1c that was substantially greater than that of placebo.
  • Weight Changes: Participants treated with Pinor also experienced a greater mean reduction in body weight compared to the placebo group. The proportion of patients who achieved specific weight loss thresholds (e.g., ge 5%) was higher with Pinor doses.

Comparative and Safety Data

Trials also explored Pinor in comparison with other established T2DM therapies, such as sitagliptin. Pinor was associated with greater reductions in HbA1c and body weight over the study period. A dedicated cardiovascular outcomes trial, PIONEER 6, was conducted to investigate the drug's safety profile in patients at high cardiovascular risk.

Regarding safety, the most frequently reported adverse events in the clinical program were gastrointestinal-related, including nausea, diarrhea, and vomiting. These side effects were typically transient and mild to moderate in severity, often occurring during the initial dose-escalation phase. Discontinuation rates due to adverse events were reported to be low across the PIONEER trials.

Frequently Asked Questions (FAQ)

Common questions about Pinor (FAQ)


Q: What should I do if I miss a dose of Pinor?

If a dose of Pinor is forgotten, it is generally recommended to take it as soon as it is remembered. However, if it is already close to the time of the next scheduled dose, regulatory patient information advises that the missed dose should be skipped to stick to the regular schedule. It is advised that you do not take a double dose to make up for a missed one.


Q: What is Pinor used to treat?

According to official regulatory prescribing information, Pinor (Imipramine) is approved to treat two main conditions. It is indicated for the treatment of depression. It is also approved for use in children six years of age and older specifically to treat nocturnal enuresis, which is involuntary bedwetting.


Q: Is it safe to drink alcohol while taking Pinor?

Regulatory agencies advise that patients consult a healthcare professional regarding alcohol consumption while taking Pinor. This caution is due to the potential for increased side effects. When combined, Pinor and alcohol may enhance effects like drowsiness or dizziness.


Q: What happens if I take too much Pinor (overdose)?

Taking too much Pinor can lead to serious symptoms, including confusion, drowsiness, irregular heartbeat, seizures, or coma. Regulatory documents state that due to the seriousness of this event, immediate emergency medical attention is required. Contacting a Poison Control Center right away is advised.


Q: What is the onset of action for Pinor (how long until it starts working)?

The effects of Pinor are not immediate. Official product information states that for treating depression, the maximum therapeutic benefit may not be seen until more than two weeks after treatment has begun. This is why a dose is typically started low and gradually increased, a process that can take up to three weeks.


Q: Can I drive while taking Pinor?

Official patient information advises caution regarding activities that require alertness. Because Pinor can commonly cause side effects like drowsiness and dizziness, official patient information advises against driving or operating machinery until the patient knows how the medicine affects them.

How should Pinor be stored and disposed of?

The official regulatory requirements for Pinor (Imipramine) strictly define its storage and disposal conditions.

Storage Conditions

Pinor must be stored at Controlled Room Temperature, defined as 20°C to 25°C (68°F to 77°F). Temperatures should not exceed 30°C (86°F), and the product must not be frozen.

Requirement Condition
Container Store in the original container and keep it tightly closed.
Protection Must be protected from light and moisture.
Child Safety Keep the medicine out of the sight and reach of children.

Disposal Requirements

Disposal of unused or expired Pinor must adhere to local pharmaceutical waste regulations. The official labeling directs that the product must not be flushed down the toilet or disposed of in regular household trash. Unwanted quantities should be returned to an authorized drug take-back location or pharmacy for proper handling.

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

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