Jonquil is an antihistamine that reduces the effects of natural chemical histamine in the body. Jonquil is used as a sleep-aid for the relief of occasional sleeplessness, and to reduce the time it takes to fall asleep if you have difficulty falling asleep.
Ask a doctor or pharmacist if it is safe for you to take Jonquil if you have other medical conditions, especially: Diphenhydramine can pass into breast milk and may harm a nursing baby.
Call your doctor if your symptoms do not improve after 7 days of treatment, or if you have a fever with a headache, cough, or skin rash. This medication can affect the results of allergy skin tests.
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. This medication may cause blurred vision and may impair your thinking or reactions.
Ask a doctor or pharmacist before using any other cold, cough, allergy, or sleep medicine. Get emergency medical help if you have signs of an allergic reaction : hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Tightness in your neck or jaw, uncontrollable movements of your tongue. Call your doctor for medical advice about side effects.
Ask a doctor or pharmacist before using Jonquil if you are also using any other drugs, including prescription and over-the-counter medicines, vitamins, and herbal products. Taking this medicine with other drugs that make you sleepy or slow your breathing can worsen these effects.
Ask your doctor before taking Jonquil with a sleeping pill, narcotic pain medicine, muscle relaxer, or medicine for anxiety, depression, or seizures. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Uses This medication works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction. Its drying effects on such symptoms as watery eyes and runny nose are caused by blocking another natural substance made by your body (acetylcholine).
Cough -and-cold products have not been shown to be safe or effective in children younger than 6 years. Therefore, do not use this product to treat cold symptoms in children younger than 6 years unless specifically directed by the doctor.
These products do not cure or shorten the length of the common cold and may cause serious side effects. To decrease the risk for serious side effects, carefully follow all dosage directions.
Do not give other cough -and-cold medication that might contain the same or similar ingredients (see also Drug Interactions section). Ask the doctor or pharmacist about other ways to relieve cough and cold symptoms (such as drinking enough fluids, using a humidifier or saline nose drops/spray).
Take the tablet, capsule, or liquid form by mouth with or without food. The rapidly-dissolving tablet or strip should be allowed to dissolve on the tongue and then swallowed, with or without water.
The dosage is based on your age, medical condition, and response to treatment. To prevent motion sickness, take your dose 30 minutes before starting activity such as travel.
Side Effects To relieve dry mouth, suck (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water, or use a saliva substitute. If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects.
Precautions Before taking diphenhydramine, tell your doctor or pharmacist if you are allergic to it; or to dimenhydrinate ; or if you have any other allergies. Before using this medication, tell your doctor or pharmacist your medical history, especially of: breathing problems (such as asthma, emphysema), high pressure in the eye (glaucoma), heart problems, high blood pressure, liver disease, seizures, stomach /intestine problems (such as ulcers, blockage), overactive thyroid (hyperthyroidism), difficulty urinating (for example, due to enlarged prostate).
Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. Liquid products, chewable tablets, or dissolving tablets/strips may contain sugar and/or aspartame.
Caution is advised if you have diabetes, liver disease, phenylketonuria (PKU), or any other condition that requires you to limit/avoid these substances in your diet. Older adults may be more sensitive to the side effects of this drug, especially drowsiness, dizziness, confusion, constipation, or trouble urinating.
This drug passes into breast milk and may have undesirable effects on a nursing infant. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana (cannabis), drugs for sleep or anxiety (such as alprazolam, lorazepam, collided), muscle relaxants (such as carisoprodol, cyclobenzaprine), or other antihistamines (such as satirizing, chlorpheniramine). Check the labels on all your medicines (such as allergy or cough -and-cold products) because they may contain ingredients that cause drowsiness.
Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe drowsiness, seizures, widened pupils.
In children, mental/mood changes (such as restlessness, irritability, hallucinations) may occur before drowsiness. Consult your pharmacist or local waste disposal company. Information last revised June 2020.
CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.