Gravinol - General Information:

Gravinol (Dramamine, Gravol and Vertirosan) is an over-the-counter drug used to prevent motion sickness. It is closely related to diphenhydramine HCl, or Benadryl. It is primarily a H1-antagonist, but also possesses an antimuscarinic effect.

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Dimenhydrinate is used to prevent and treat nausea, vomiting, dizziness, and vertigo associated with motion sickness. Use caution when driving, operating machinery, or performing other hazardous activities. Dimenhydrinate may cause dizziness, drowsiness, or blurred vision. If you experience dizziness, drowsiness, or blurred vision, avoid these activities. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking dimenhydrinate.


Gravinol is an antiemetics drug combination that contains diphenhydramine and theophylline. It is not effective in the treatment of nausea associated with cancer chemotherapy. Gravinol directly inhibits the stimulation of certain nerves in the brain and inner ear to suppress nausea, vomiting, dizziness, and vertigo.

Gravinol for patients

Gravinol Interactions

Dimenhydrinate may decrease emetic response to apomorphine.

Gravinol Contraindications

Dimenhydrinate may impede diagnosis of appendicitis and may obscure signs of overdose.

Additional information about Gravinol

Gravinol Indication: Used for treating vertigo, motion sickness, and nausea associated with pregnancy.
Mechanism Of Action: The mechanism by which some antihistamines exert their antiemetic, anti–motion sickness, and antivertigo effects is not precisely known but may be related to their central anticholinergic actions. They diminish vestibular stimulation and depress labyrinthine function. An action on the medullary chemoreceptive trigger zone may also be involved in the antiemetic effect.
Drug Interactions: Donepezil Possible antagonism of action
Galantamine Possible antagonism of action
Rivastigmine Possible antagonism of action
Food Interactions: Avoid alcohol.
Take with food.
Generic Name: Dimenhydrinate
Synonyms: Diphenhydramine Theoclate; Diphenhydrinate
Drug Category: Antiemetics; Histamine H1 Antagonists
Drug Type: Small Molecule; Approved
Other Brand Names containing Dimenhydrinate: Amosyt; Anautine; Andramine; Antemin; Aviomarin; Chloranautine; Diamarin; Dimate; Dimenest; Dimentabs; Dramalen; Dramamin; Dramarin; Dramilin; Dramyl; Dromyl; Eldodram; Gravinol; Gravol; Hydrinate; Menhydrinate; Neo-Navigan; Novamine; Permital; Reise-Engletten; Supremal; Teodramin; Travelin; Travelmin; Troversin; Vomex A; Xamamina;
Absorption: Well absorbed after oral administration.
Toxicity (Overdose): Symptoms of overdose include delerium and hallucinations.
Protein Binding: 98 to 99%.
Biotransformation: Hepatic (cytochrome P-450 system).
Half Life: 1 to 4 hours
Dosage Forms of Gravinol: Solution Intravenous
Liquid Intravenous
Tablet Oral
Tablet, multilayer Oral
Capsule Oral
Solution Intramuscular
Liquid Oral
Suppository Rectal
Syrup Oral
Liquid Intramuscular
Chemical IUPAC Name: 2-benzhydryloxyethyl-dimethylazanium; 8-chloro-1,3-dimethyl-2-oxopurin-6-olate
Chemical Formula: C24H28ClN5O3
Dimenhydrinate on Wikipedia:
Organisms Affected: Humans and other mammals

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