Duloxetine DR 30mg Capsules

Duloxetine is a potent and selective serotonin (5-HT) and norepinephrine (NE) reuptake inhibitor. It weakly inhibits dopamine reuptake. Duloxetine's antidepressant, anxiolytic, and pain-relieving actions are presumed to be related to the potentiation of serotonergic and noradrenergic activity in the central nervous system.

Urgent Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek immediate medical attention:

Signs of an allergic reaction: rash, hives, itching, red, swollen, blistered, or peeling skin (with or without fever), wheezing, tightness in the chest or throat, trouble breathing, swallowing, or talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat.
Signs of low sodium levels: headache, difficulty focusing, memory problems, confusion, weakness, seizures, or changes in balance.
Signs of bleeding: vomiting or coughing up blood, vomit that resembles coffee grounds, blood in the urine, black, red, or tarry stools, bleeding from the gums, abnormal vaginal bleeding, unexplained bruises or bruises that enlarge, or uncontrollable bleeding.
Signs of high or low blood pressure: severe headache or dizziness, fainting, or changes in vision.
Seizures.
Difficulty urinating.
Sexual problems, including decreased libido, trouble achieving orgasm, ejaculation problems, or erectile dysfunction. If you have concerns, discuss them with your doctor.
Liver problems, which can be life-threatening. If you experience symptoms such as dark urine, fatigue, decreased appetite, stomach pain or upset, light-colored stools, vomiting, or yellow skin or eyes, contact your doctor immediately.
A severe skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may occur, potentially leading to severe health problems or death. Seek medical help immediately if you notice symptoms such as red, swollen, blistered, or peeling skin (with or without fever), red or irritated eyes, or sores in your mouth, throat, nose, or eyes.

Other Possible Side Effects

Like all medications, this drug can cause side effects. Many people may not experience any side effects or only minor ones. If you are bothered by any of the following side effects or if they persist, contact your doctor or seek medical attention:

Gastrointestinal symptoms: constipation, diarrhea, stomach pain, upset stomach, vomiting, or decreased appetite.
Headache.
Dry mouth.
Sleep disturbances.
Dizziness, drowsiness, fatigue, or weakness.
Excessive sweating.
Weight loss.
* Nose or throat irritation.

This list is not exhaustive, and you may experience other side effects. If you have questions or concerns about side effects, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced.
Existing health conditions, including kidney disease or liver disease.
Current medications, particularly:
+ Thioridazine
+ Ciprofloxacin or fluvoxamine
+ Linezolid or methylene blue
If you have taken certain medications for depression or Parkinson's disease within the last 14 days, such as isocarboxazid, phenelzine, tranylcypromine, selegiline, or rasagiline, as this may lead to very high blood pressure.

Please note that this is not an exhaustive list of all potential interactions. It is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health problems with your doctor and pharmacist to ensure safe use. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.

Important Warnings and Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.

Caution with Daily Activities
Until you know how this medication affects you, avoid driving and other tasks that require alertness. To minimize the risk of dizziness or fainting, get up slowly from a sitting or lying down position, and be cautious when climbing stairs.

Risk of Falls and Low Blood Pressure
This medication can cause low blood pressure, falls, and fainting, which may lead to serious injuries, such as broken bones, and hospitalization. Older adults are at a higher risk of falls. Discuss this risk with your doctor.

Monitoring Blood Sugar and Blood Pressure
If you have diabetes, closely monitor your blood sugar levels. Additionally, have your blood pressure checked regularly, as prescribed by your doctor, since this medication can cause high blood pressure.

Interactions with Other Substances
Before consuming alcohol, marijuana, or other forms of cannabis, or taking prescription or over-the-counter medications that may cause drowsiness, consult your doctor.

Bleeding Risk
This medication may increase the risk of bleeding, which can be life-threatening in some cases. Discuss this risk with your doctor.

Serotonin Syndrome
A rare but potentially life-threatening condition called serotonin syndrome can occur, especially when taking certain other medications. Seek immediate medical attention if you experience symptoms such as agitation, balance problems, confusion, hallucinations, fever, abnormal heartbeat, flushing, muscle twitching or stiffness, seizures, shivering or shaking, excessive sweating, severe diarrhea, stomach upset, vomiting, or severe headache.

Eye Problems
Some individuals may be at a higher risk of eye problems when taking this medication. Your doctor may recommend an eye exam to assess this risk. If you experience eye pain, changes in vision, or swelling and redness in or around the eye, contact your doctor immediately.

Low Sodium Levels
This medication can cause low sodium levels, which can be life-threatening and lead to seizures, fainting, breathing difficulties, or death.

Lab Tests and Age-Related Considerations
Inform all your healthcare providers and laboratory personnel that you are taking this medication, as it may affect certain lab tests. If you are 65 or older, use this medication with caution, as you may be more susceptible to side effects. In children and adolescents, this medication may affect growth in some cases, and regular growth checks may be necessary. Discuss this with your doctor.

Pregnancy and Breastfeeding
If you are pregnant, planning to become pregnant, or breastfeeding, inform your doctor. Taking this medication in the third trimester of pregnancy may increase the risk of bleeding after delivery and cause health problems in the newborn. This medication passes into breast milk and may harm your baby. Discuss the benefits and risks with your doctor.

• Monoamine Oxidase Inhibitors (MAOIs) - risk of serotonin syndrome
• Thioridazine - risk of QT prolongation and ventricular arrhythmias
• Fluvoxamine, Ciprofloxacin, Enoxacin (potent CYP1A2 inhibitors) - significantly increase duloxetine levels

• Other serotonergic drugs (e.g., SSRIs, SNRIs, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, St. John's Wort) - increased risk of serotonin syndrome
• Drugs metabolized by CYP2D6 (e.g., tricyclic antidepressants, phenothiazines, Type 1C antiarrhythmics like propafenone, flecainide) - duloxetine is a moderate CYP2D6 inhibitor, increasing levels of these drugs
• Anticoagulants/Antiplatelets (e.g., warfarin, NSAIDs, aspirin) - increased risk of bleeding

• Alcohol - increased risk of liver injury
• CNS depressants (e.g., benzodiazepines, opioids, sedatives) - additive CNS depression
• Drugs that cause orthostatic hypotension (e.g., alpha-blockers) - additive effect
• Drugs that affect blood pressure (e.g., antihypertensives) - duloxetine can cause blood pressure increases

• Not specifically categorized as minor, but general caution with any new medication.

• Nausea
• Dry mouth
• Constipation
• Insomnia
• Dizziness
• Fatigue
• Sweating
• Headache
• Sexual dysfunction
• Agitation
• Anxiety
• Panic attacks
• Insomnia
• Irritability
• Hostility
• Impulsivity
• Akathisia (psychomotor restlessness)
• Hypomania
• Mania
• Unusual changes in behavior
• Signs of liver injury (e.g., jaundice, dark urine, abdominal pain)
• Signs of serotonin syndrome (e.g., agitation, hallucinations, rapid heart beat, fever, muscle rigidity, incoordination, nausea, vomiting, diarrhea)

Use during pregnancy should be considered only if the potential benefit justifies the potential risk to the fetus. Exposure during late pregnancy may be associated with complications in the neonate requiring prolonged hospitalization, respiratory support, and tube feeding (persistent pulmonary hypertension of the newborn, PPHN, has been reported with SSRI exposure).

Duloxetine is excreted into breast milk. The amount is relatively low, and adverse effects in breastfed infants are generally not expected, but caution is advised. Monitor infants for sedation, poor feeding, and poor weight gain.

Safety and efficacy have not been established for MDD in pediatric patients. For GAD, it is approved for adolescents aged 7-17 years. Black Box Warning regarding increased risk of suicidality in children, adolescents, and young adults.

No overall differences in safety or effectiveness were observed between elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. Use with caution due to increased risk of hyponatremia, falls, and potential for drug interactions. Start with lower doses and titrate slowly.

• Duloxetine is a versatile SNRI approved for both psychiatric (MDD, GAD) and chronic pain conditions (DPNP, fibromyalgia, chronic musculoskeletal pain).
• It is crucial to taper duloxetine slowly when discontinuing to minimize withdrawal symptoms (e.g., dizziness, nausea, headache, paresthesia, insomnia, irritability).
• Monitor blood pressure regularly, especially during dose titration, as duloxetine can cause dose-dependent increases in blood pressure.
• Contraindicated in patients with uncompensated narrow-angle glaucoma due to the risk of mydriasis.
• Contraindicated in severe renal impairment (CrCl <30 mL/min) and any hepatic impairment/liver disease.
• Counsel patients on the risk of serotonin syndrome, especially if combining with other serotonergic agents or MAOIs.
• Advise patients not to open, crush, or chew the capsules due to the enteric coating.

• Other SNRIs (e.g., venlafaxine, desvenlafaxine, levomilnacipran)
• SSRIs (e.g., escitalopram, sertraline, fluoxetine, paroxetine, citalopram)
• Tricyclic Antidepressants (TCAs) (e.g., amitriptyline, nortriptyline) - for pain and depression
• Gabapentinoids (e.g., gabapentin, pregabalin) - for neuropathic pain and fibromyalgia
• Other pain medications (e.g., NSAIDs, opioids - for pain indications)
• Other anxiolytics (e.g., benzodiazepines - for GAD, short-term)
• Other antidepressants with different mechanisms (e.g., bupropion, mirtazapine)

If your symptoms or health issues persist or worsen, it is essential to contact your doctor promptly. To ensure safe use, never share your medication with others or take someone else's medication. This medication is accompanied by a Medication Guide, which is a patient fact sheet that provides important information. Please read this guide carefully and review it again each time you receive a refill of this medication. If you have any questions or concerns about this medication, consult with your doctor, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. When reporting the incident, be prepared to provide details about the medication taken, the quantity, and the time it occurred.