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- Clinician Information:
Blocadren Patient Information including If I Miss a Dose
In this Article
- What is timolol (Blocadren)?
- What are the possible side effects of timolol (Blocadren)?
- What is the most important information I should know about timolol (Blocadren)?
- What should I discuss with my healthcare provider before taking timolol (Blocadren)?
- How should I take timolol (Blocadren)?
- What happens if I miss a dose (Blocadren)?
- What happens if I overdose (Blocadren)?
- What should I avoid while taking timolol (Blocadren)?
- What other drugs will affect timolol (Blocadren)?
- Where can I get more information?
What happens if I miss a dose (Blocadren)?
Take the missed dose as soon as you remember. If your next dose is less than 8 hours away, 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 (Blocadren)?
Seek emergency medical attention if you think you have used too much of this medicine.
Symptoms of a timolol overdose may include uneven heartbeats, shortness of breath, bluish-colored fingernails, dizziness, weakness, fainting, or seizure (convulsions).
What should I avoid while taking timolol (Blocadren)?
Timolol 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, which could increase drowsiness and dizziness while you are taking timolol.
What other drugs will affect timolol (Blocadren)?
Before taking timolol, tell your doctor if you are using:
- allergy treatments (or if you are undergoing allergy skin-testing);
- clonidine (Catapres);
- guanabenz (Wytensin);
- an MAO inhibitor such as isocarboxazid (Marplan), tranylcypromine (Parnate), phenelzine (Nardil), or selegiline (Eldepryl, Emsam);
- a diabetes medication such as insulin, glyburide (Diabeta, Micronase, Glynase), glipizide (Glucotrol), chlorpropamide (Diabinese), or metformin (Glucophage);
- a heart medication such as nifedipine (Procardia, Adalat), reserpine (Serpasil), verapamil (Calan, Verelan, Isoptin), diltiazem (Cartia, Cardizem);
- medicine for asthma or other breathing disorders, such as albuterol (Ventolin, Proventil), bitolterol (Tornalate), metaproterenol (Alupent), pirbuterol (Maxair), terbutaline (Brethaire, Brethine, Bricanyl), and theophylline (Theo-Dur, Theolair); or
- cold medicines, stimulant medicines, or diet pills.
If you are using any of these drugs, you may not be able to take timolol, or you may need dosage adjustments or special tests during treatment.
There may be other drugs not listed that can affect timolol. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
Where can I get more information?
Your pharmacist has additional information about timolol written for health professionals that you may read.
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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Additional Blocadren Information
- Blocadren Drug Interactions Center: timolol maleate oral
- Blocadren Side Effects Center
- Blocadren FDA Approved Prescribing Information including Dosage
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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