What happens if I miss a dose (Quarzan)?
Take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take only your next regularly scheduled dose. Do not take a double dose of this medication.
What happens if I overdose (Quarzan)?
Seek emergency medical attention.
Symptoms of a clidinium overdose include headache; nausea; vomiting; dry mouth; difficulty swallowing; blurred vision; dilated pupils; hot, dry skin; dizziness; drowsiness; confusion; anxiety; seizures; weak pulse; and an irregular heartbeat.
What should I avoid while taking clidinium (Quarzan)?
Use caution when driving, operating machinery, or performing other hazardous activities. Clidinium may cause dizziness, drowsiness, or blurred vision. If you experience dizziness, drowsiness, or blurred vision, avoid these activities.
Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking clidinium.
Avoid becoming overheated in hot weather. Clidinium increases the risk of heat stroke because it causes decreased sweating.
What other drugs will affect clidinium (Quarzan)?
Many other drugs may increase the side effects of clidinium. Before taking this medication, tell your doctor if you are taking any of the following medicines:
- amantadine (Symmetrel);
- quinidine (Quinaglute, Cardioquin, Quinora, Quinidex);
- antihistamines such as diphenhydramine (Benadryl, many others), brompheniramine (Dimetapp, Bromphen, many others), triprolidine (Actifed, others), and chlorpheniramine (Chlor-Trimeton, others), which are found in many over-the-counter and prescription cough, cold and allergy medications;
- decongestants and appetite suppressants such as phenylpropanolamine (Dexatrim, others), phenylephrine (Neo-Synephrine, others), and pseudoephedrine (Sudafed, others), which are also found in many over-the-counter and prescription products;
- phenothiazines such as chlorpromazine (Thorazine) and prochlorperazine (Compazine);
- other commonly used phenothiazines, including fluphenazine (Prolixin), mesoridazine (Serentil), perphenazine (Trilafon), thioridazine (Mellaril), trifluoperazine (Stelazine), and promazine (Sparine);
- tricyclic antidepressants such as amitriptyline (Elavil, Endep), doxepin (Sinequan), and nortriptyline (Pamelor); or
- other commonly used tricyclic antidepressants, including amoxapine (Asendin), clomipramine (Anafranil), desipramine (Norpramin), imipramine (Tofranil), protriptyline (Vivactil), and trimipramine (Surmontil).
Clidinium may increase the level of digoxin in your blood. Tell your doctor if you are taking digoxin so that your digoxin levels can be monitored and changes in your dosage can be made if necessary.
Drugs other than those listed here may also interact with clidinium. Talk to your doctor and pharmacist before taking any prescription or over-the-counter medicines.
Where can I get more information?
Your pharmacist has more information about clidinium 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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