What happens if I take more than one dose of Claritin®? Taking more than the recommended dose of Claritin® may cause drowsiness. In the case of overdose, get medical help or contact a Poison Control Center right away- always follow label directions.
Do not take more than one dose in 24 hours. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
If a healthy adult takes only a slightly higher dose of antihistamine, such as accidentally taking two pills instead of one, their symptoms may not be serious, or they may not have any symptoms. However, a larger overdose, especially in children or older adults, may cause serious symptoms.
The adult Claritin 12 Hour dosage is 5 mg (1 tablet) dissolved on the tongue every 12 hours. Don't take more than 2 tablets in a 24-hour period.
#2: You Aren't Consistent With Your Medication
Take one Claritin every day for it to be the most effective, but don't take more than one pill a day, even if you missed a pill the day before. Taking multiple pills a day increases your risk of serious side effects.
Loratadine is generally very safe. If you or your child take too much, it is unlikely to harm you.
In overdose symptoms can include dizziness, tachycardia, headache drowsiness or agitation. While the current generation of lesser sedating antihistamines do not affect the QT interval at normal doses (unlike the previous generation of medicines), there are concerns there may be some effect in overdose.
The usual dose for adults and kids 6 years and older is 10 milligrams (mg), once a day. The typical dose for children between ages 2 and 5 is 5 mg, once a day.
The half-life of loratadine, or how long it takes for half a dose to leave your body, is 8.4 hours4 in adults without liver problems. Because it takes about five half-lives5 to completely rid your body of a drug, Claritin can remain in your system for more than 40 hours after you take a dose.
Taking more than the usual dose is unlikely to harm you or your child. If you take an extra dose, you might get some of the common side effects. If this happens or you're concerned, contact your doctor.
Adults and children 6 years of age and older—One capsule or 10 milligrams (mg) once a day. Do not take more than one capsule per day. Children younger than 6 years of age—Use and dose must be determined by your doctor.
No, the maximum recommended daily dose of loratadine is 10mg once daily.
Adults and children 6 years and older: The typical dose is 10 mg by mouth once per day. The maximum dose is 10 mg per day. Children 2 to under 6 years of age: The typical dose is 5 mg by mouth once per day. The maximum dose is 5 mg per day.
If you have seasonal allergies and notice that your allergy medicine stops working, it might be because you've developed new allergies. People rarely develop a tolerance to allergy medications. Common medications like Zyrtec, Allegra, Flonase, and Claritin don't usually stop working.
Dry mouth, mild stomach upset, trouble sleeping, dizziness, headache, nervousness, loss of appetite, or thirst may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
For instance, Claritin comes in both 12-hour and 24-hour tablets. So if you took Claritin 12-hour in the morning and want to take Zyrtec that night, you may be able to. However, if taking Zyrtec or a 24-hour Claritin product, you should not take more than one dose of either medication over the course of 24 hours.
Hydration: The more water you drink, the quicker diphenhydramine is flushed from the system. Metabolism: Everyone's body metabolizes or breaks down drugs and similar substances at a different rate. The faster your drug metabolism is, the less time diphenhydramine stays in your system.
Oral antihistamines, such as diphenhydramine (Benadryl) and cetirizine (Zyrtec), shouldn't be taken together without a healthcare provider's OK. The combination can raise the risk for serious side effects.
With ingestions greater than 1 gram, diphenhydramine may result in delirium, psychosis, seizures, coma, and death. There is an even greater risk of seizures, coma, and death when ingestions are greater than 1.5 grams of diphenhydramine. Fatal deaths have also been reported with oral doses greater than 20 mg/kg.
BENADRYL® Allergy ULTRATABS® Tablets with Allergy Relief and Diphenhydramine HCI 25 mg. Take 1 to 2 tablets every 4 to 6 hours or as directed by a doctor.
Bottom Line. Zyrtec and Claritin are both second generation antihistamines with low risk of sedation; however, Zyrtec is more likely to cause sedation than Claritin. Zyrtec also has a quicker onset of action (one hour vs up to three hours for Claritin) but both last for 24 hours.
Claritin begins to work about 1 to 3 hours after you take it, and the effects of a 10 mg dose last about 24 hours.