Dytuss

Dytuss is an antihistamine that helps with sneezing, a runny nose, watery eyes, hives, skin rash, itching, and other symptoms from colds or allergies.

Dytuss is also used to help with motion sickness, to help you sleep, and to treat some symptoms of Parkinson's disease. This sleep aid is not for children younger than 12 years old.

There are many brands and types of diphenhydramine available. Not all brands are mentioned in this leaflet.

Dytuss may also be used for reasons not mentioned in this medication guide.

Use exactly as directed on the label or as prescribed by your doctor. Dytuss is only for short-term use until your symptoms improve.

Taking too much Dytuss can cause serious heart problems, seizures, coma, or death.

Always follow the instructions on the medicine label when giving Dytuss to a child. Do not use the medicine just to make a child sleepy. Misusing antihistamines in very young children can lead to death.

For motion sickness, take Dytuss 30 minutes before you will be in a situation that causes motion sickness (like a long car ride, airplane or boat travel, amusement park rides, etc.). Continue taking this medicine with meals and at bedtime for the rest of the time you expect to experience motion sickness.

As a sleep aid, take Dytuss within 30 minutes before bedtime.

You must chew the chewable tablet before swallowing it.

Measure liquid medicine carefully. Use the dosing syringe provided or a medicine dose-measuring device (not a kitchen spoon).

Remove an orally disintegrating tablet from the package only when you are ready to take the medicine. Place the tablet in your mouth and let it dissolve without chewing. Swallow several times as the tablet dissolves.

Call your doctor if the condition you are treating with Dytuss does not improve, or if you have a fever with a headache, cough, or skin rash.

Do not use Dytuss for more than 2 weeks to treat sleep problems or longer than 7 days to treat cold or allergy symptoms.

Dytuss can affect the results of allergy skin tests. Tell any doctor who treats you that you are using Dytuss.

Store at room temperature away from moisture and heat.

Use Dytuss exactly as directed. Taking too much Dytuss can cause serious heart problems, seizures, coma, or death.

Do not use this medicine to make a child sleepy. Dytuss sleep aid medicine is not for children younger than 12 years old.

You should not use Dytuss if you are allergic to it.

Ask a doctor or pharmacist if this medicine is safe to use if you have ever had:

• an enlarged prostate or problems with urination;
• asthma, chronic obstructive pulmonary disease (COPD), or other breathing issues;
• glaucoma; or
• a thyroid condition.

Ask a doctor before using this medicine if you are pregnant or breastfeeding. Dytuss may slow down breast milk production.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Dytuss may cause serious side effects. Stop using Dytuss and call your doctor right away if you have:

• severe drowsiness; or
• painful or difficult urination.

Side effects such as dry mouth, constipation, and confusion may happen more often in older adults.

Common side effects of Dytuss may include:

• drowsiness;
• dry eyes, blurred vision;
• dry mouth, nose, or throat;
• decreased urination;
• constipation;
• feeling restless or excited (especially in children); or
• daytime drowsiness or "hangover" feeling after night-time use.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Since Dytuss is used as needed, you might not have a regular dosing schedule. If you miss a dose and it's almost time for your next dose, just skip the missed dose. Do not take two doses at the same time.

Seek emergency medical help or call the Poison Help line at 1-800-222-1222. Taking too much diphenhydramine can be deadly.

Signs of an overdose may include vomiting, confusion, extreme sleepiness, ringing in your ears, not being able to urinate, very dry eyes and mouth, enlarged pupils, fast heart rate, shaking, restlessness, seeing things that are not there, or seizures.

Do not drive or do anything dangerous until you know how Dytuss affects you. Your reactions may be affected.

Drinking alcohol can make some side effects of diphenhydramine worse.

Ask a doctor or pharmacist before using any other medicine that may have Dytuss in it. This includes medicines for sleep, cold or allergy symptoms, or anti-itch creams. Taking too much of this medicine may cause a fatal overdose.

Ask a doctor or pharmacist before using Dytuss with any other medicines, especially those that can cause drowsiness (such as opioid medication, sleep medicine, a muscle relaxer, or medicine for anxiety or seizures). Inform your doctor about all the medicines you are currently taking and any medicine you begin or stop using. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here.