What happens if I overdose on Zyrtec (Cetirizine (Oral/Injection))? Overdose symptoms may include extreme drowsiness, vision problems, agitation, feeling restless and then drowsy or tired, fast heartbeats, stomach pain, nausea, vomiting, trouble walking, or trouble swallowing or speaking.
What happens if you take 20 mg of Zyrtec?
Four small studies suggest that cetirizine 20 mg daily may improve symptoms in adults with severe chronic urticaria. In Okubo et al (2013), itching and weals improved in people who took cetirizine 20 mg daily or olopatadine 5 mg twice daily as a dose increase from cetirizine 10 mg.
Can I take 2 Zyrtec a day?
There have been reports of patients taking 15-18 times the recommended dose of Zyrtec (recommended dose is 10 mg) and having some adverse effects (restlessness, irritability, somnolence). Taking two 10mg tablets should not cause you to have any serious problems.
Is taking Zyrtec everyday bad for you?
Because antihistamines like Claritin and Zyrtec are now available over the counter, we can trust that they’re generally safe for longterm use, says Shih.17 мая 2018 г.
How many Zyrtec should you take a day?
Adults and children 6 years and older can take cetirizine capsules and tablets. The usual dosage for adults younger than 65 years and children who are 6 years and older is one 10-milligram (mg) dose per day. You shouldn’t take more than 10 mg in 24 hours.
Is 20mg of zyrtec safe?
Taking 10mg of Zyrtec is more effective than taking 5mg; taking 20mg appears not to provide any additional effect. Food has no effect on the overall absorption of Zyrtec; however, it may increase the time it takes for peak levels of Zyrtec to be reached in the blood.
Can I take 2 allergy pills a day?
As well as taking a non-drowsy antihistamine like loratadine during the day, your doctor may tell you to take a sedating antihistamine at night if the itching is making it difficult to sleep. Do not take 2 antihistamines together unless recommended by your doctor.
Can I double up on Zyrtec?
Do NOT “double-up” on a dose. Do NOT take a dose sooner than you’re supposed to. Do NOT take two different antihistamines at the same time. Instead, talk to your doctor or pharmacist if you have trouble finding a drug that works well for your allergy symptoms.
Can Zyrtec make you gain weight?
Antihistamines that can cause weight gain include: Diphenhydramine (Benadryl and others) Cetirizine (Zyrtec)
Can Zyrtec cause anxiety?
Antihistamines are known to cause extreme drowsiness; however, in certain people, they can cause insomnia, excitability, anxiety, restlessness, and a rapid heart rate.
Can Zyrtec cause depression?
The over-the-counter allergy medication cetirizine (Zyrtec and generic) has been linked to depression, as has another type of drug, montelukast (Singulair), which is often used to treat people with allergic asthma.
Is it better to take Zyrtec at night or in the morning?
Cetirizine can be taken at any time of the day. In most people it is non-sedating, so they take it in the morning. However, a percentage of people do find it to be sedating so if it does make you drowsy it is best to take it in the evening. Cetirizine can be taken with or without food.
How long does Zyrtec last in your system?
The elimination half-life of Zyrtec is between 8 to 9 hours. It takes approximately 5.5 x elimination half-life for a medicine to be cleared from your system. For Zyrtec this is 5.5 x 9 hours which is about 2 days.
Can you get addicted to Zyrtec?
You CAN become dependent on Zyrtec and have itchy withdrawals from the allergy drug.
Can I take cetirizine 10 mg twice a day?
Always take Cetirizine 10 mg Tablets exactly as your doctor has told you. Check with your doctor if you are not sure. Tablets need to be swallowed with a glass of liquid. The recommended dose is 5 mg twice daily as half a tablet twice a day.
Can I take 40 mg of Zyrtec?
In fact, current European guidelines recommend up to four times the usual recommended dose of antihistamine in patients who symptoms persist with standard therapy . For example, doses of up to 40 mg of cetirizine, 20 mg of desloratadine, and 480 mg of fexofenadine may be used in adults.