Q:

What is the recommended dosage of hydrochloride for an adult?

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Quick Answer

The recommended adult dosage for diphenhydramine hydrochloride is 25 to 50 milligrams three to four times daily, according to Drugs.com. To use diphenhydramine as a sleep aide, 50 milligrams is the recommended dose. However, patients should visit their doctors for individualized dosing as this drug absorbs rapidly into the system.

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Full Answer

Signs of diphenhydramine overdose include dry mouth, fixed dilated pupils, flushing and gastrointestinal symptoms, as reported by Drugs.com. If these symptoms appear, the patient should contact a health care professional immediately. The health care professional may advise the patient to induce vomiting. If so, the patient should drink a glass of water or milk and then force himself to gag. Diphenhydramine hydrochloride should not be taken with alcohol, hypnotics, sedatives, tranquilizers or any other central nervous system depressants.

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