Precautions
Before taking this product, tell your doctor or pharmacist:
- If you are allergic to any of its ingredients; or if you have any other allergies.
- If you are planning to undergo a surgery.
- Pregnant or breastfeeding.
- Your medical condition such as:
- breathing problems (such as asthma, emphysema)
- diabetes
- glaucoma
- heart problems
- high blood pressure
- kidney problems
- liver disease
- seizures
- stomach or intestinal problems (such as blockage, constipation, ulcers)
- overactive thyroid (hyperthyroidism)
- urination problems (such as trouble urinating due to enlarged prostate, urinary retention)
This drug may cause dizziness, drowsiness or blurred vision. Avoid activities requiring alertness or clear vision such as driving until you are sure you can perform such activities safely. Limit the use of alcohol and certain other medications that cause drowsiness.
Older adults and children may be more sensitive to the side effects of this drug, especially dizziness, drowsiness, mental or mood changes, constipation, fast heartbeat, trouble urinating, or blood pressure changes.
Interactions
Drug interactions may either lessen the effectiveness of this drug or heighten the risk for severe side effects. It’s important to inform your doctor all the medication including prescription and non-prescription and herbal medicines you are taking or going to take.
Possible interactions with this drug are:
- Alcohol
- MAO inhibitors such as Isocarboxazid, Methylene Blue, Moclobemide, Phenelzine, Procarbazine, Rasagiline, Selegiline, Or Tranylcypromine.
- Antihistamines applied to the skin such as Diphenhydramine Cream, Ointment, Spray, Ketoconazole.
- Opioid pain or cough relievers such as Codeine, Hydrocodone.
- Drugs for sleep or anxiety such as Alprazolam, Lorazepam, Zolpidem.
- Muscle relaxants such as Carisoprodol, Cyclobenzaprine.
- Other Antihistamines such as Cetirizine, Diphenhydramine.
This medication may interfere with certain laboratory tests (including urine 5-HIAA), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.