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Karbinal ER is a medicine used to treat symptoms of seasonal and year-round allergies (such as runny nose), hives, or other severe allergic reactions to blood or plasma. Karbinal ER may also be used to treat other conditions, as determined by your healthcare provider. Karbinal ER is available as an oral suspension.
How does this medication work?
Karbinal ER is an extended-release medicine (a type of medicine that releases into your body throughout the day). Karbinal ER works by blocking the release of a chemical in your body called histamine that causes allergic symptoms.
What are the beneficial effects of this medication and when should I begin to have results?
What: By blocking histamine release, Karbinal ER may help improve your allergic symptoms.
When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider's directions. It is important that you take Karbinal ER exactly as your healthcare provider has prescribed.
How do I know it is working?
You may notice an improvement in your allergic symptoms after you start taking Karbinal ER. This is a good indicator that the medicine is working. Your healthcare provider may ask you questions to check how well your symptoms are controlled.
The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.
Common side effects may include: drowsiness, sleepiness, dizziness, disturbed coordination, stomach pain, thick mucus.
Do not take Karbinal ER if you are allergic to it or any of its ingredients.
Do not take Karbinal ER if you are breastfeeding.
Do not give Karbinal ER to children <2 years of age.
Do not take Karbinal ER if you are taking monoamine oxidase inhibitors (MAOIs), a class of medications used to treat depression and other conditions (such as phenelzine or selegiline).
Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Karbinal ER. Also, talk to your healthcare provider about your complete medical history, especially if you have a sulfite allergy; increased pressure in your eye; thyroid or heart problems; high blood pressure; ulcers; a condition in which the bladder does not open enough or completely during voiding; swelling of the prostate gland, which may in turn block the flow of urine; or if you are pregnant, plan to become pregnant, or are breastfeeding.
The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.
Adults and adolescents ≥12 years: The usual dose is 7.5 milliliters (mL) to 20 mL (6 milligrams [mg] to 16 mg) every 12 hours.
Children 6-11 years: The usual dose is 7.5 mL to 15 mL (6 mg to 12 mg) every 12 hours.
Children 4-5 years: The usual dose is 3.75 mL to 10 mL (3 mg to 8 mg) every 12 hours.
Children 2-3 years: The usual dose is 3.75 mL to 5 mL (3 mg to 4 mg) every 12 hours.
Take Karbinal ER exactly as prescribed by your healthcare provider. Do not change your dose or stop taking Karbinal ER without first talking to your healthcare provider.
It is important that you measure Karbinal ER with an accurate measuring device. A household teaspoon is not an accurate measuring device. You may ask your pharmacist to recommend an appropriate measuring device for you.
Do not drive, operate heavy machinery, or do other dangerous activities while you are taking Karbinal ER.
Do not drink alcohol or take medicines that make you sleepy while taking Karbinal ER.
If Karbinal ER is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining Karbinal ER with the following: alcohol, MAOIs, or medicines that make you sleepy (such as diphenhydramine or chlorpromazine).
The effects of Karbinal ER during pregnancy are unknown. Do not breastfeed while you are taking Karbinal ER. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.
If you miss a dose of Karbinal ER, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.
Store at room temperature.
In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
National Poison Control#: Call 1-800-222-1222
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