Diconal (Cyclizine)

Diconal (Cyclizine) Uses, Dosage, Side Effects, Food Interaction and all others data.

A histamine H1 antagonist given by mouth or parenterally for the control of postoperative and drug-induced vomiting and in motion sickness. (From Martindale, The Extra Pharmacopoeia, 30th ed, p935)

Diconal (Cyclizine) is a piperazine-derivative antihistamine used as an antivertigo/antiemetic agent. Diconal (Cyclizine) is used in the prevention and treatment of nausea, vomiting, and dizziness associated with motion sickness. Additionally, it has been used in the management of vertigo in diseases affecting the vestibular apparatus. Although the mechanism by which cyclizine exerts its antiemetic and antivertigo effects has not been fully elucidated, its central anticholinergic properties are partially responsible. The drug depresses labyrinth excitability and vestibular stimulation, and it may affect the medullary chemoreceptor trigger zone. It also possesses anticholinergic, antihistaminic, central nervous system depressant, and local anesthetic effects.

Diconal (Cyclizine)
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
Half Life
Volume of Distribution
Clearance
Interaction With other Medicine
Contradiction
Storage

Trade Name	Diconal (Cyclizine)
Availability	Discontinued
Generic	Cyclizine
Cyclizine Other Names	Ciclizina, Cyclizine, Cyclizinum
Related Drugs	hydroxyzine, lorazepam, ondansetron, Zofran, meclizine, promethazine, diphenhydramine, Benadryl, Phenergan, scopolamine
Type
Formula	C₁₈H₂₂N₂
Weight	Average: 266.3807 Monoisotopic: 266.178298714
Groups	Approved
Therapeutic Class
Manufacturer
Available Country	United Kingdom
Last Updated:	September 19, 2023 at 7:00 am

Uses

Diconal (Cyclizine) is an antihistamine and antiemetic drug used for the prevention and treatment of nausea, vomiting, and dizziness associated with motion sickness, and vertigo.

For prevention and treatment of nausea, vomiting, and dizziness associated with motion sickness, and vertigo (dizziness caused by other medical problems).

Diconal (Cyclizine) is also used to associated treatment for these conditions: Migraine, Motion Sickness

How Diconal (Cyclizine) works

Vomiting (emesis) is essentially a protective mechanism for removing irritant or otherwise harmful substances from the upper GI tract. Emesis or vomiting is controlled by the vomiting centre in the medulla region of the brain, an important part of which is the chemotrigger zone (CTZ). The vomiting centre possesses neurons which are rich in muscarinic cholinergic and histamine containing synapses. These types of neurons are especially involved in transmission from the vestibular apparatus to the vomiting centre. Motion sickness principally involves overstimulation of these pathways due to various sensory stimuli. Hence the action of cyclizine which acts to block the histamine receptors in the vomiting centre and thus reduce activity along these pathways. Furthermore since cyclizine possesses anti-cholinergic properties as well, the muscarinic receptors are similarly blocked.

Food Interaction

Avoid alcohol.
Take with or without food. The absorption is unaffected by food.

Diconal (Cyclizine) Alcohol interaction

[Moderate] GENERALLY AVOID:

Use of anticholinergic agents with alcohol may result in sufficient impairment of attention so as to render driving and operating machinery more hazardous.

In addition, the potential for abuse may be increased with the combination.

The mechanism of interaction is not established but may involve additive depressant effects on the central nervous system.

No effect of oral propantheline or atropine on blood alcohol levels was observed in healthy volunteers when administered before ingestion of a standard ethanol load.

However, one study found impairment of attention in subjects given atropine 0.5 mg or glycopyrrolate 1 mg in combination with alcohol.

Alcohol should generally be avoided during therapy with anticholinergic agents.

Patients should be counseled to avoid activities requiring mental alertness until they know how these agents affect them.