Promethazine 50mg/ml Inj 25x1ml

Promethazine is a phenothiazine derivative that acts as a potent H1-receptor antagonist. It also possesses significant anticholinergic, sedative, antiemetic (due to blockade of dopamine receptors in the chemoreceptor trigger zone), and mild alpha-adrenergic blocking properties.

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, such as:
+ 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
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of high or low blood pressure, including:
+ Severe headache
+ Dizziness
+ Passing out
+ Changes in eyesight
Abnormal heart rhythms, such as:
+ Fast or slow heartbeat
Neurological problems, including:
+ Trouble controlling body movements
+ Twitching
+ Changes in balance
+ Difficulty swallowing or speaking
+ Shakiness
+ Trouble moving around
+ Stiffness
Confusion or disorientation
Feeling nervous or excitable
Hallucinations (seeing or hearing things that are not there)
Mood changes
Ringing in the ears
Seizures
Unexplained bruising or bleeding
Yellowing of the skin or eyes
Changes in eyesight
Neuroleptic malignant syndrome (NMS), a potentially life-threatening condition, characterized by:
+ Fever
+ Muscle cramps or stiffness
+ Dizziness
+ Severe headache
+ Confusion
+ Changes in thinking
+ Fast heartbeat
+ Abnormal heartbeat
+ Excessive sweating
Severe breathing problems, including:
+ Slow, shallow, or troubled breathing
Low white blood cell counts, which can increase the risk of infection, characterized by:
+ Fever
+ Chills
+ Sore throat

Other Possible Side Effects

Most people taking this medication will not experience severe side effects, and some may not have any side effects at all. However, if you notice any of the following symptoms, contact your doctor or seek medical attention if they bother you or do not go away:

Dizziness
Drowsiness
Fatigue
Weakness
Blurred vision
Dry mouth
Upset stomach or vomiting
Trouble sleeping
* Stuffy nose

Reporting Side Effects

This is not an exhaustive list of possible 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 allergic reaction you experienced, including any symptoms that occurred.
If you have a history of respiratory conditions, including asthma, chronic obstructive pulmonary disease (COPD), or sleep apnea, which involves breathing difficulties during sleep.
* If you have been diagnosed with liver problems or Reye's syndrome, a rare but serious condition that can affect the liver and brain.

Please note that this is not an exhaustive list of potential interactions. To ensure your safety, it is crucial to discuss all of your medications, including prescription and over-the-counter (OTC) drugs, natural products, and vitamins, with your doctor and pharmacist. This includes any health problems you are experiencing.

Before starting, stopping, or modifying the dosage of any medication, including this one, consult with your doctor to confirm that it is safe to do so in conjunction with your other medications and health conditions.

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. Before engaging in activities that require alertness and clear vision, such as driving, wait until you understand how this drug affects you.

This medication may interfere with the accuracy of some pregnancy tests. If you are pregnant or suspect you may be, consult your doctor. Additionally, if you have diabetes, it is crucial to closely monitor your blood sugar levels while taking this medication.

Before consuming alcohol, using marijuana or other cannabis products, or taking prescription or over-the-counter medications that may impair your reactions, discuss the potential risks with your doctor.

You may be more susceptible to sunburn while taking this medication. To minimize this risk, avoid exposure to direct sunlight, sunlamps, and tanning beds. When going outside, use sunscreen and wear protective clothing and eyewear to safeguard your skin and eyes.

This medication may increase the risk of seizures, particularly in individuals with a history of seizure disorders. Consult your doctor to determine if you are at a higher risk of experiencing seizures while taking this medication.

If you have a sulfite allergy, inform your doctor, as some formulations of this medication may contain sulfites.

Older adults (65 years and older) should exercise caution when taking this medication, as they may be more prone to experiencing side effects.

If you are pregnant, planning to become pregnant, or breastfeeding, it is essential to discuss the potential benefits and risks of this medication with your doctor to ensure the best possible outcome for you and your baby.

• MAO inhibitors (concurrent use or within 14 days of discontinuation)
• Other CNS depressants (in children < 2 years)

• CNS depressants (e.g., opioids, benzodiazepines, alcohol, barbiturates, general anesthetics) - increased sedation and respiratory depression
• Anticholinergic drugs (e.g., tricyclic antidepressants, atropine, benztropine) - increased anticholinergic effects (dry mouth, blurred vision, urinary retention, constipation)
• QT-prolonging drugs (e.g., antiarrhythmics, certain antipsychotics, macrolide antibiotics) - increased risk of QT prolongation and arrhythmias
• Dopamine agonists (e.g., bromocriptine, cabergoline) - promethazine's antidopaminergic effects may antagonize their action
• Epinephrine (paradoxical fall in blood pressure with promethazine due to alpha-adrenergic blockade)

• Antihypertensives - additive hypotensive effects
• Cholinergic drugs - decreased efficacy of cholinergic drugs
• Phenytoin - altered phenytoin levels
• Antidiabetic agents - promethazine may affect glucose tolerance

• Not available

• Excessive sedation
• Respiratory depression (slow, shallow breathing)
• Paradoxical excitation (restlessness, agitation, hallucinations)
• Anticholinergic effects (dry mouth, blurred vision, urinary retention, constipation)
• Dizziness or lightheadedness (orthostatic hypotension)
• Involuntary movements (extrapyramidal symptoms, rare but possible)
• Signs of tissue injury at injection site (pain, burning, redness, swelling, blistering, necrosis)

Promethazine is classified as Pregnancy Category C. It should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. There are no adequate and well-controlled studies in pregnant women.

Promethazine is excreted into breast milk. The American Academy of Pediatrics considers it to be of 'Maternal Concern'. Use during lactation should be approached with caution.

Contraindicated in children younger than 2 years due to the risk of fatal respiratory depression. Use with extreme caution in children 2 years of age and older, and only when clearly indicated. Lower doses and careful monitoring are essential. Risk of paradoxical excitation (restlessness, agitation) is higher in pediatric patients.

Elderly patients are more susceptible to the sedative, hypotensive, and anticholinergic effects of promethazine. Start with lower doses and titrate slowly. Increased risk of falls, confusion, and urinary retention. Avoid use in elderly patients with dementia-related psychosis.

• Promethazine injection should NEVER be administered subcutaneously due to severe tissue damage risk.
• Deep intramuscular (IM) injection is the preferred route. If IV, use a large, patent vein, dilute to 25 mg/mL or less, and administer slowly (no faster than 25 mg/minute).
• Always confirm patency of the IV line before and during administration to prevent extravasation.
• Due to its sedative effects, advise patients against driving or operating machinery.
• Monitor for respiratory depression, especially in children and patients receiving other CNS depressants.
• Be aware of the potential for paradoxical excitation, particularly in pediatric patients.
• Avoid concomitant use with other anticholinergic agents to prevent additive side effects.

• For nausea/vomiting: Ondansetron, Metoclopramide, Prochlorperazine, Dimenhydrinate
• For allergic reactions: Diphenhydramine, Cetirizine, Loratadine, Fexofenadine
• For sedation/anxiety: Benzodiazepines (e.g., Lorazepam, Midazolam), Diphenhydramine

If your symptoms or health problems persist or worsen, it is essential to contact your doctor for further guidance. To ensure safe use, never share your medication with others, and do not take medication prescribed for someone else. Store all medications in a secure location, out of reach of children and pets, to prevent accidental ingestion. Dispose of unused or expired medications properly. Unless instructed to do so by a healthcare professional, avoid flushing medications down the toilet or pouring them down the drain. If you are unsure about the correct disposal method, consult your pharmacist for advice. Additionally, you may want to inquire about potential drug take-back programs in your area. Some medications may come with a separate patient information leaflet, so be sure to check with your pharmacist. If you have any questions or concerns about your medication, do not hesitate to discuss them with your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. Be prepared to provide information about the medication taken, the amount, and the time it occurred.