Generic Benadryl (Diphenhydramine)
|Benadryl is used to treat symptoms of allergies and the common cold, to suppress coughs, to treat motion sickness, to induce sleep, and to treat mild forms of Parkinson's disease.|
Product DescriptionCommon use
Benadryl is an antihistamine. Benadryl in the parenteral form is a sterile, pyrogen-free solution. It blocks the effects of the naturally occurring chemical histamine in the body. Benadryl is used to treat symptoms of allergies (sneezing, runny nose, itching, watery eyes, hives, rashes, etc.) and the common cold, to suppress coughs, to treat motion sickness, to induce sleep, and to treat mild forms of Parkinson's disease. Sometimes Benadryl may be used for purposes different from those listed in this medication guide.
Dosage and direction
Take Benadryl exactly like it has been prescribed by your doctor. If you do not understand these directions, you should ask your pharmacist, nurse, or doctor to explain them to you. Take each dose with a full glass of water. You can take it with or without food. For motion sickness, take a dose 30 minutes before motion, then with meals and at bedtime for the duration of exposure. As a sleep aid, you should take Benadryl approximately 30 minutes before bedtime.
Be careful with driving, operating machinery, or performing other hazardous activities. Benadryl may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities. Don't drink alcohol, it may increase drowsiness and dizziness while taking Benadryl.
Do not take Benadryl if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in the last 14 days. Before taking Benadryl, discuss with your doctor if you have glaucoma or increased pressure in the eye; a stomach ulcer; an enlarged prostate, bladder problems or difficulty urinating; an overactive thyroid (hyperthyroidism); hypertension or any type of heart problems or asthma. Do not take Benadryl without first talking to your doctor if you are pregnant or you are nursing a baby. If you are over 60 years old, you may require a lower dose of this medication.
Possible side effects
Stop taking Benadryl and seek emergency medical attention if you experience an allergic reaction such as difficulty breathing, closing of your throat, swelling of your lips, tongue, face or hives). Continue to take Benadryl and talk to your doctor if you experience sleepiness, fatigue, or dizziness; headache; dry mouth; or difficulty urinating or an enlarged prostate.
You should let your doctor know if you are taking any of the following medicines: anxiety or sleep medicines, medications for depression or any other medications that make you feel drowsy, sleepy, or relaxed. Other drugs may also interact with Benadryl. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines, including vitamins, minerals, and herbal products.
Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose of this medication unless otherwise directed by your doctor.
Seek emergency medical attention if an overdose is suspected. Symptoms of a Benadryl overdose include extreme sleepiness, confusion, weakness, ringing in the ears, blurred vision, large pupils, dry mouth, flushing, fever, shaking, insomnia, hallucinations, and possibly seizures.
Store at room temperature between 59-86 degrees F (between 15-30 degrees C).
We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.