What happens if I miss a dose (Ketek, Ketek Pak)?
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 the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Ketek, Ketek Pak)?
Seek emergency medical attention if you think you have used too much of this medicine. Telithromycin is not expected to cause overdose symptoms.
What should I avoid while taking telithromycin (Ketek, Ketek Pak)?
This medication may cause blurred vision and may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert and able to see clearly.
Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, stop taking telithromycin and call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.
If you also use theophylline (Elixophyllin, Theo-24, Theochron, Uniphyl, and others), avoid using it within 1 hour before or after you take telithromycin.
What other drugs will affect telithromycin (Ketek, Ketek Pak)?
There are many other drugs that can cause serious drug interactions if you take them together with telithromycin. Tell your doctor about all other medicines you use, especially:
- colchicine (Colcrys);
- cholesterol-lowering medicine such as simvastatin (Zocor, Simcor, Vytorin), lovastatin (Mevacor, Altoprev, Advicor), atorvastatin (Lipitor, Caduet); or
- heart or blood pressure medicine such as amlodipine (Norvasc, Caduet, Exforge, Lotrel, Tekamlo, Tribenzor, Twynsta, Amturnide), diltiazem (Cartia, Cardizem), nifedipine (Nifedical, Procardia), verapamil (Calan, Covera, Isoptin, Verelan), and others.
Many other drugs can interact with telithromycin. Below is just a partial list. Tell your doctor if you are using:
- a blood thinner such as warfarin (Coumadin, Jantoven);
- cyclosporine (Sandimmune, Gengraf, Neoral);
- digoxin (Lanoxin, Lanoxicaps);
- itraconazole (Sporanox) or ketoconazole (Nizoral);
- metoprolol (Lopressor, Toprol XL);
- rifampin (Rifater, Rifadin, Rifamate);
- tacrolimus (Prograf) or sirolimus (Rapamune);
- ergot medicine such as ergotamine (Ergomar, Cafergot, Migergot), dihydroergotamine (D.H.E. 45, Migranal), ergonovine (Ergotrate), or methylergonovine (Methergine);
- heart rhythm medicine such as amiodarone (Cordarone, Pacerone), dofetilide (Tikosyn), disopyramide (Norpace), dronedarone (Multaq), ibutilide (Corvert), procainamide (Procan, Pronestyl), propafenone (Rythmol), quinidine (Quin-G), or sotalol (Betapace);
- a sedative such as diazepam (Valium), midazolam (Versed), alprazolam (Xanax), chlordiazepoxide (Librium), temazepam (Restoril); or
- seizure medication such as phenytoin (Dilantin), carbamazepine (Carbatrol, Equetro, Tegretol), phenobarbital (Solfoton).
This list is not complete and there are many other drugs that can interact with telithromycin. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor. Keep a list of all your medicines and show it to any healthcare provider who treats you.
Where can I get more information?
Your pharmacist can provide more information about telithromycin.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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