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What happens when you stop taking Zyrtec-D?
The main withdrawal symptom is called pruritus— itching and burning sensations of the skin ranging from moderate to severe. Other antihistamine withdrawal symptoms include interruptions in sleep patterns.
How long does it take antihistamines to leave your system?
You MUST stay off of all antihistamines for at least 48 hours (unless instructed otherwise in parentheses) prior to your Allergy Skin Testing. Please consult the list below, as some medications may need to be avoided for a longer period of time.
Can Zyrtec-D cause heart palpitations?
Pseudoephedrine Hydrochloride Nervousness, excitability, restlessness, dizziness, weakness, or insomnia may occur. Headache, nausea, drowsiness, tachycardia, palpitation, pressor activity, and cardiac arrhythmias have been reported.
Does Zyrtec have to build up in your system?
Antihistamines are another popular choice for treating allergies. Fortunately, studies have shown that people do not build up resistance to these drugs.
Can Zyrtec-D make you feel weird?
Drowsiness, dizziness, tiredness, dry mouth, nausea, headache, or trouble sleeping may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
How long does it take for Zyrtec-D to work?
Most people experience relief from Zyrtec-D within an hour. It can take up to two hours for the drug to reach maximum levels in the body. Zyrtec-D lasts for approximately 12 hours and it’s usually taken twice daily for complete relief.
How many Zyrtec-D can I take?
Dosage for Zyrtec-D The dose of Zyrtec-D for adults and children 12 years and over is 1 tablet every 12 hours; not more than 2 tablets in 24 hours.
How long does it take Zyrtec to work?
Zyrtec starts to work within an hour or so after taking the medication—making it useful for the as-needed treatment of hay fever and hives. Taking it daily, however, may result in better overall control of allergy symptoms.