dihydrocodeine and phenylephrine (cont.)
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What happens if I miss a dose (Alahist DHC)?
Since cough and cold medicine is usually taken only as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Alahist DHC)?
Seek emergency medical attention if you think you have used too much of this medicine. An overdose of dihydrocodeine can be fatal.
Overdose symptoms may include extreme drowsiness, pinpoint pupils, cold and clammy skin, limp muscles, fainting, seizure (convulsions), shallow breathing or breathing that stops.
What should I avoid while taking dihydrocodeine and phenylephrine (Alahist DHC)?
This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Avoid drinking alcohol while you are taking this medication.
Tell your doctor if you regularly use other medicines that make you sleepy (such as pain medication, sleeping pills, muscle relaxers, and medicine for seizures, depression or anxiety). They can add to sleepiness caused by dihydrocodeine and phenylephrine.
Avoid taking diet pills, caffeine pills, or other stimulants (such as ADHD medications) without your doctor's advice. Taking a stimulant together with phenylephrine can increase your risk of unpleasant side effects.
Do not use any other over-the-counter cold, allergy, or pain medication without first asking your doctor or pharmacist. Phenylephrine is contained in many medicines available over the counter. If you take certain products together you may accidentally take too much of this drug. Read the label of any other medicine you are using to see if it contains phenylephrine.
What other drugs will affect dihydrocodeine and phenylephrine (Alahist DHC)?
Tell your doctor about all other medicines you use, especially:
This list is not complete and there may be other drugs that can interact with dihydrocodeine and phenylephrine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about dihydrocodeine and phenylephrine.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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