Side Effects of Gravol


Gravol is a brand name for the over-the-counter antihistamine dimenhydrinate, mainly used to prevent dizziness and nausea from motion sickness. Available in Canada, it is equivalent to Dramamine in the United States, as well as generic forms of the drug. Numerous side effects are possible.

Most Common Effects

The most common side effects associated with Gravol include blurred vision, coordination difficulties, drowsiness, dry mouth, headache, lightheadedness, nausea and ringing in the ears.

Serious Side Effects

Serious possible side effects that can result from taking Gravol include irregular heartbeat, heart palpitations or rapid heartbeat.

Overdose Symptoms

Sometimes people take too much Gravol trying to eliminate the motion sickness, and this can cause overdose side effects. Signs of overdosing include confusion, difficulty speaking, difficulty swallowing, facial flushing, hallucinations, sleepiness, unconsciousness, unsteadiness and seizures.

Medical Conditions

Certain medical issues may prevent a person from being able to safely use Gravol. These include asthma, bladder problems, an enlarged prostate, glaucoma, heart disease, kidney disease or liver disease.

Drug Interactions

Gravol interacts with numerous other drugs, which increases the drowsiness side effect. These include alcohol, antidepressants, anti-anxiety medication, muscle relaxants, pain relievers, sedatives and other antihistamines.

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