Avoid taking MAO inhibitors (isocarboxazid, linezolid, metaxalone, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before treatment with this medication.
Antihistamines, which are commonly used to treat symptoms such as a runny nose or sneezing, are generally safe for patients with abnormal heart conditions. However, the FDA has warned that antihistamines taken in conjunction with some high blood pressure medications may cause a spike in blood pressure.
Reports in the literature have suggested that antihistamines are contraindicated in asthma because they dry the secretions in the upper and lower respiratory tracts.
Antihistamines may interact with:
Other drugs that cause drowsiness, such as sleeping medications, narcotic pain medications, sedatives, muscle relaxants, antidepressants and seizure medications.
Determining which allergy medications can raise your blood pressure comes down to the ingredients. Most antihistamines are safe for people with hypertension. But decongestants should be avoided, since they can raise your blood pressure further.
Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana (cannabis), drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or ...
Antihistamines are usually safe for people who have asthma to use, but they can cause side effects. Some antihistamines can't be taken with certain other medicines. Like any other medicine, read the warnings and instructions on the label and check with your doctor before you start taking an antihistamine.
Aspirin. Non-steroidal anti-inflammatory drugs, like ibuprofen (Motrin® or Advil®) and naproxen (Aleve® or Naprosyn®) Beta-blockers, which are usually used for heart conditions, high blood pressure and migraines.
Other medications for COPD
Although effective at relieving these symptoms, antihistamines can dry the air passages too much, making breathing difficult, as well as causing difficulty coughing up excess mucus.
Based on pre-clinical and clinical evidence, it appears that loratadine, cetirizine, and fexofenadine are safe from cardiac arrhythmia via the IKr channel, whereas astemizole and terfenadine have a propensity to cause ventricular tachyarrhythmias.
While on beta-blockers, you should also avoid eating or drinking products that have caffeine or taking over-the-counter cough and cold medicines, antihistamines, and antacids that contain aluminum. You should also avoid drinking alcohol, because it can decrease the effects of beta-blockers.
They may occasionally cause an increase in the pulse rate because they have an atropine-like effect. In some individuals, the heart rate may become rapid. These sensations, called palpitations and caused by arrhythmia, subside over time and usually cause no harm (Arrhythmias).
Not everyone can take antihistamines. So talk to a pharmacist or GP if you're taking these medicines for the first time. And read the patient information leaflet that comes with your medicine carefully. If you're pregnant or breastfeeding, it's important to speak to your GP or pharmacist before taking an antihistamine.
The U.S. Food and Drug Administration (FDA) is warning that taking higher than recommended doses of the common over-the-counter (OTC) allergy medicine diphenhydramine (Benadryl) can lead to serious heart problems, seizures, coma, or even death.
And there's always a risk of taking too much of an antihistamine, especially with long-term use. An antihistamine overdose can cause various symptoms of toxicity, such as severe drowsiness, blurred vision, hallucinations, and seizures.
Congestion, coughing. Wheezing, shortness of breath. Tiredness (fatigue). Itchy skin, hives and other skin rashes.
Beta-blockers, over-the-counter pain relievers like non-steroidal anti-inflammatory drugs (NSAIDs), including aspirin, and angiotensin-converting enzyme (ACE) inhibitors are widely used medicines that can trigger asthma symptoms.
In contrast, loratadine, a potent, nonsedating, histamine-1-receptor antagonist with activity in seasonal and perennial allergic rhinitis, has demonstrated effective control of asthma symptoms, improved pulmonary function, and long duration of action in patients with allergic bronchial asthma.
Conclusions: Cetirizine has a significant bronchodilatory effect in patients with mild-to-moderate asthma and can be used to treat concomitant conditions (e.g., allergic rhinitis) without concern that it will interfere with the bronchodilatory effect of albuterol or cause worsening of asthma by itself.
They may raise your blood pressure. They also keep some high blood pressure drugs from working the way they should.Be careful, because many allergy medications contain antihistamines and a decongestant. Watch out for combination medications for allergies that include decongestant ingredients.
Conclusion: Cetirizine 10 mg daily is safe and effective in relieving both upper and lower respiratory tract symptoms in patients with seasonal allergic rhinitis and concomitant asthma.
The well-known side effects of the first-generation antihistamines, sedation and decreased reaction time, are more pronounced in the elderly. The anticholinergic effects are drying of the mouth and eyes, blurred vision, urinary retention, and constipation.
Zyrtec is safe for most people, but there are some populations that should stay away from it. Children under 2, anyone with a history of allergic reaction to Zyrtec or hydroxyzine/piperazine derivatives, and people with severe renal impairment are all people who probably shouldn't take Zyrtec, says Dr.
Greg Panico, a spokesman for Janssen Pharmaceutica, which is owned by Johnson and Johnson, said that the withdrawal was a voluntary business decision. “The decision to voluntarily discontinue it recognises that the allergy marketplace is crowded with a number of other drugs,” Mr Panico said.