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Doctor insights on: Antiemetic

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Antiemetic (Overview)

A medicine that is anti (against) emesis (vomiting).


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What other antihistamine has antiemetic properties equivalent or superior to phenergan (promethazine)?

What other antihistamine has antiemetic properties equivalent or superior to phenergan (promethazine)?

None: Most antihistamines do not have much if any antiemetic effect although some anti-emetic drugs may possess some antihistaminic activities. ...Read more

Antiemetic (Overview)

A medicine that is anti (against) emesis (vomiting).


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After 25mg meclizine hydrochloride antiemetic wares off, is it normal to feel groggy/fatigued?

After 25mg meclizine hydrochloride antiemetic wares off, is it normal to feel groggy/fatigued?

Possibly: Certain individuals report some dizziness and groggy after taking meclizine. There are, however, many other causes of dizziness and grogginess, best to check with your physician. ...Read more

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What is the best over-the-counter antiemetic?

What is the best over-the-counter antiemetic?

Several good ones: But best depends on cause of emesis: viral/bacterial gastroenteritis/food poisoning: emetrol, pepto-bismol, kaopectate; dizziness/seasickness: dramamine, (dimenhydrinate) bonine. Precautions: emetrol used with caution in diabetics; pepto causes black tongue/mouth/stools; dramamine/bonine can cause drowsiness & may exacerbate glaucoma. If in doubt, ask your fp/pediatrician. ...Read more

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What antihistamine has the strongest antiemetic properties?

Dramamine (dimenhydrinate): Dramamine (dimenhydrinate) and Meclizine are some that can be used. Different for different patients. ...Read more

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Is phenergan (promethazine) an antiemetic?

Is phenergan (promethazine) an antiemetic?

Among other things: Phenergan (promethazine) is a phenothiazine (most of the family are anti-psychotics) which is used primarily for its antihistaminic, antiemetic, & sedative effects. Because it also blocks acetylcholine, it can cause dry mouth, blurred vision, constipation, difficulty urinating. As a phenothiazine it may cause uncontrollable movement disorders (extrapyramidal reaction). Also a photosensitizer. ...Read more

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What is unusual about the antiemetic marinol?

What is unusual about the antiemetic marinol?

From marijuana: There isn't anything unusual about Marinol besides the fact that it is derived from marijuana. It is a prescription for those having significant anorexia/wt loss from illnesses such as HIV and cancers. Marijuana is still illegal in most states. ...Read more

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If I take a antiemetic like phenegran is it still possible I can vomit?

Yes: Phenergan (promethazine) works on one mechanism of nausea. There are many reasons someone could experience nausea and may not be controlled with that drug. ...Read more

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Is it true that opioids in higher doses have antiemetic effects vs lower doses because it depresses the vomiting center?

Is it true that opioids in higher doses have antiemetic effects vs lower doses because it depresses the vomiting center?

yes: High doses of some opioids may decrease n/v by interacting with receptors in the vomiting center, rather than the ctz (chemoreceptor trigger zone ).The relationship between opioids use and n/v is complex. The vomiting center in the medulla oblongata, receives input from 4 areas; chemoreceptor trigger zone gi tract vestibular apparatus -temporal lobe cerebral cortex. ...Read more

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How does deep sedation stop refractory vomiting that's resistant to antiemetic therapy?

How does deep sedation stop refractory vomiting that's resistant to antiemetic therapy?

Palliative sedation : Sedation use to relieve refractory symptoms is often indicated in palliative treatment of dying patients. Inoperable malignant intestinal obstruction or advanced malignant cancer is the most common cause of intractable vomiting. Medications such as Midazolam & propofol, +/- haloperidol are often used for this purpose and work by creating a medication induced coma. Life expectancy is 3-4 days. ...Read more

Dr. John Leslie
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Anti Nausea Drug (Definition)

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