Dexmedetomidine

Uses	Sedative
Therapy	General Anaesthesia
Side Effects	Atrial fibrillation (rapid and irregular heart rhythm), Dryness in the mouth, Headaches, Nausea and vomiting, Reduced blood pressure, Slow breathing, Slow heart rate

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Molecule Description

Dexmedetomidine is a prescription medication used in intensive care units to promote sedation (a condition of calmness, sleepiness, or drowsiness) in adult individuals. It can also be utilised for sedation throughout surgical and diagnostic procedures.

Uses

Dexmedetomidine is used to:
Promote sedation

Contraindications

When should one not use Dexmedetomidine

If you have a known allergy to Dexmedetomidine

Side effects

Common side effects of this drug are:

Atrial fibrillation (rapid and irregular heart rhythm)
Dryness in the mouth
Headaches
Nausea and vomiting
Reduced blood pressure
Slow breathing
Slow heart rate

Precautions and Warnings

Pregnancy

Using Dexmedetomidine during pregnancy may be dangerous. Animal research has demonstrated negative effects on the growing foetus, despite the lack of human studies. It is critical to inform the doctor about your pregnancy at the time of consultation. Please seek medical advice.

Breast Feeding

Using Dexmedetomidine while nursing is probably safe. Based on limited human data, the medicine appears to pose no major harm to the breastfed baby. However, do inform the doctor about your breastfeeding status at the time of consultation.

Driving

Dexmedetomidine is designated for usage in hospitalised patients, hence this is irrelevant.

Alcohol

Alcohol must not be taken before or following the administration of Dexmedetomidine. Dexmedetomidine's nervous system adverse effects, such as disorientation, sleepiness, and difficulties focusing, can be exacerbated by alcohol. Some individuals may also have difficulty thinking and making judgments.

Other General Warnings

Talk to your doctor if

You are suffering from liver issues.
In some people, taking this medicine for longer than 24 hours may raise the risk of tachyphylaxis and tolerance (a decreased response to the medication).
The safety and effectiveness of Dexmedetomidine in children under the age of 18 have not been clinically proven. The physician may, however, recommend this medication if necessary.
You have a slow heart rate (bradycardia) or low blood pressure (hypotension).

Mode of Action

How Does It Work?

Dexmedetomidine activates particular chemical messengers inside the brain that reduce pain and promote sleep. Dexmedetomidine is a highly selective alpha-2 adrenoceptor agonist. It suppresses the production of norepinephrine by attaching to presynaptic alpha-2 adrenoceptors, effectively preventing pain signals from propagating.

Interactions

Interactions with other medicines

To avoid side effects associated with medicine interaction, it is important to inform the doctor about all medicines and health supplements you are currently taking.
Dexmedetomidine should not be used with some benzodiazepines, such as lorazepam. Combining these medications can cause adverse symptoms such as dizziness, drowsiness, disorientation, and difficulties concentrating that can occur. Some people, particularly the elderly, may have difficulty thinking, judging, and physical coordination.
Dexmedetomidine should not be used with some calcium channel blockers such as diltiazem. Combining these medications can reduce the heart rate and lower blood pressure.
Dexmedetomidine should not be used with some diuretics such as furosemide. Combining these medicines can cause low blood pressure and a reduced heart rate.
Dexmedetomidine should not be used with some anticonvulsants such as phenytoin. When phenytoin is used with Dexmedetomidine, adverse symptoms such as drowsiness, dizziness, disorientation, and difficulty concentrating may occur. Some people, particularly the elderly, may have difficulty judging, thinking, and physical coordination.

Interactions with food items

There is no known food interaction with Dexmedetomidine.

Dosage

Overdose

The risk of an overdose is extremely minimal because this medicine is given in a hospital setting by a trained healthcare worker. If an overdose is anticipated, however, the physician will commence emergency medical care. Dexmedetomidine overdose can cause life-threatening hypotension and bradycardia, and it is also related to miosis (contraction of pupil).

Missed a Dose

Missing a dose of Dexmedetomidine is rare as it is administered in a hospital setting.

Frequently Asked Questions (FAQs)

Dexmedetomidine is given by a healthcare professional in a hospital setting, and the doctor will monitor your response. Ask your doctor how soon you can expect its effect.

How often Dexmedetomidine is given depends on your medical condition and is decided by your doctor. It should be given by a trained health care professional in a clinical setting. Do not self-administer.

Dexmedetomidine is delivered intravenously. Pain at the site of injection and a decreased heart rate are possible side effects (bradycardia). There is no amnesia associated with it.

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