Can i take nyquil and zyrtec at the same time

In regard to NyQuil and Sudafed (pseudoephedrine), they can safely be taken together as NyQuil does not already contain a decongestant and there are no interactions between any of the drugs. You can also take one in the morning and one in the evening as you suggested. The 'original' NyQuil contains the following ingredients:

Can i take nyquil and zyrtec at the same time. Applies to: Daytime Cold and Flu Relief (acetaminophen / dextromethorphan / pseudoephedrine) Alcohol can increase the nervous system side effects of dextromethorphan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while ...

Jul 6, 2023 · The specific dosages, as well as the ingredients, can vary between products. NyQuil is generally taken at bedtime since it can cause drowsiness. But you can take NyQuil up to 4 times in 24 hours, with each dose separated by 4 or 6 hours (depending on which product you take). NyQuil is available OTC as a brand-name medication.

Dr. Michael Zacharisen answered. Specializes in Allergy and Immunology. Yes: While nyquil contains multiple ingredients that also includes an antihistamine, the addition of 1 Allegra (fexofenadine) (also an antihistamine) will not be harmful. Answered 10/20/2020. Therefore, it is crucial to check the ingredient list of Nyquil before taking additional ibuprofen to avoid exceeding the recommended dosage. Possible side effects: Both Nyquil and ibuprofen can cause side effects such as drowsiness, dizziness, stomach upset, and allergic reactions. Taking them together may increase the risk of these side effects. Xarelto disease interactions. There are 6 disease interactions with Xarelto (rivaroxaban) which include: bleeding. valvular heart disease. antiphospholipid syndrome. hepatic impairment. renal disease. unstable blood pressure. Sulfasalazine interacts with a number of medications, and taking these drugs at the same time can result in adverse reactions. This article provides an overview of potential drug interactions, from major to minor. ... Taking sulfasalazine can make you more prone to infections, and its use comes with common side effects like diarrhea, stomach …Allergy medications that work differently in the body or are administered differently can be safely taken together. For instance, someone taking an oral antihistamine, such as Zyrtec (cetirizine), can also use antihistamine eye drops, such as Pataday (olopatadine), to treat both sneezing and itchy or watery eyes.. Nasal sprays, including …Key takeaways: Gabapentin (Neurontin) can interact with medications and substances that make you sleepy. These include opioids, benzodiazepines, and alcohol. Gabapentin can interact with some over-the-counter (OTC) medications and supplements. These include antihistamines as well as products that contain magnesium or aluminum.

Aug 27, 2021 · Zyrtec and Nyquil must not be taken at the same time however, it is safe to take them both on the same day. Both must be separated from one another by at least a few hours to lessen the possibility of excess sedation and drowsiness. The major concern with using both Zyrtec and Nyquil at the same time is due to the threats of potential additive ... There are certain money skills everyone should have by the time they reach middle age. Check out this list of good skills to see how many you have. Part-Time Money® Make extra mone...Official answer. by Drugs.com. If your allergy is particularly bad then yes you can take them on the same day, as there are no known interactions. This is a therapeutic duplication and it is usually recommended to take only one antihistamine at any time, however if you have been prescribed to take both together then it is appropriate.Sep 3, 2012 ... First, it's not necessary, since they work on the nasal passages the same way. Second, taking them together could lead to an overload of ...The typical Zyrtec dosage for adults is 10 mg once daily, taken around the same time each day. Adults ages 65 and older should only take 5 mg of Zyrtec per day. Different Zyrtec dosage forms may contain different amounts of cetirizine. Below, we’ve outlined the specific instructions for taking each dosage form.Can i take 2 zyrtec (cetirizine) at the same time? 8 doctors weighed in across 4 answers. can i take theraflu if i took zyrtec and panadol 7 hours ago? i thought it was allergies but the symptoms have been worse?: : Yes, you can do that. It's often take 2-3 days for an upper respirat.Zyrtec (cetirizine) Hydroxyurea disease interactions. There are 5 disease interactions with hydroxyurea which include: myelosuppression; renal dysfunction; hepatic dysfunction; seizure disorders; neurologic disorders; ... take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No interaction information available. Further …At a glance. Theraflu Nighttime products contain diphenhydramine, a sedating first-generation antihistamine. Since Zyrtec is also an antihistamine, taking both can increase the risk of side effects like excess sedation and dry eyes. Intermittent use of diphenhydramine however, even if you are taking Zyrtec daily for allergy prevention, …

Can NyQuil and Zyrtec be taken at same time? ... Can you take nyquil night time cold and flu while on the depo shot? Nyquil night time cold and flu does not affect how well Depo Provera works ...Can I take Nyquil together with fluoxetine? No, you should not take Nyquil while on fluoxetine. This is because most types of Nyquil contain the active ingredient dextromethorphan (amongst others), which should not be taken together with fluoxetine as fluoxetine can cause an unintended increase in the level of dextromethorphan in your …Zyrtec (cetirizine) Letrozole alcohol/food interactions. There is 1 alcohol/food interaction with letrozole. Letrozole disease interactions. There are 3 disease interactions with letrozole which include: liver disease ... assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No …Allegra D 12 Hour Allergy and Congestion: pseudoephedrine and fexofenadine. Alka-Seltzer Plus Flu: aspirin, chlorpheniramine, and dextromethorphan. Benadryl Allergy and Cold: acetaminophen, diphenhydramine, and phenylephrine. Children’s Dimetapp Cold and Cough: brompheniramine, dextromethorphan, and phenylephrine.Zoloft - NyQuil Interaction Question. In our latest question and answer, our pharmacist discusses the interaction between one of the components of NyQuil and Zoloft. I currently take 200 mg of sertraline daily. I am coming down with a mild cold (stuffy/runny nose, scratchy throat). It gets worse at night especially while sleeping.The study uses data from the FDA. It is based on acetaminophen / dextromethorphan / doxylamine / pseudoephedrine and cetirizine hydrochloride (the active ingredients of Nyquil and Zyrtec, respectively), and Nyquil and Zyrtec (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered.

How to read marlboro expiration dates.

Anyone over 12 years of age can take two LiquiCaps or 30 ml of the NyQuil Liquid every six hours, but you must not exceed four doses over 24 hours. This medication has three active ingredients: acetaminophen, which relieves pain, dextromethorphan HBr, a cough suppressant, and doxylamine succinate, an antihistamine.While there are no direct contraindications between DayQuil and Zyrtec, it’s important to exercise caution when combining different medications. Both DayQuil and Zyrtec can cause drowsiness as side effects individually. Therefore, taking them together may intensify this sedative effect.If you have high blood pressure, thyroid problem or diabetes, yo should not take it. Don't take it regularly under any circumstances. Yes: No problem at all. Possible, but: Zyrtec (cetirizine), is an antihistamine. Mucinex d (guaifenesin and Pseudoephedrine 120mg) is a combination of a medication.Sep 3, 2012 ... First, it's not necessary, since they work on the nasal passages the same way. Second, taking them together could lead to an overload of ...

Best Answer. Yes, I believe you can. NyQuil treats your symptoms the same way a regular cough medication would. It is not the same as Penicillin and should not interfere with the antibiotic. Often ...Taking Claritin with NyQuil may increase your risk of side effects. Drowsiness. Dizziness. Dry mouth. It’s essential to be aware of these side effects and to avoid driving or operating heavy machinery while taking these medications. Taking Claritin with NyQuil in rare cases may cause more severe side effects. Difficulty breathing.Key takeaways: Gabapentin (Neurontin) can interact with medications and substances that make you sleepy. These include opioids, benzodiazepines, and alcohol. Gabapentin can interact with some over-the-counter (OTC) medications and supplements. These include antihistamines as well as products that contain magnesium or aluminum.3. Barbiturates and antiseizure medications. Barbiturates, phenytoin (Dilantin), and carbamazepine (Tegretol) are prescription medications that can make doxycycline leave your body faster. This can make doxycycline less effective, which could lead to an undertreated infection.Yes, you can take Zyrtec in the morning and NyQuil at night, but there has to be at least a 12-hour time gap in between. Zyrtec is a second-generation antihistamine and NyQuil is an OTC formulation containing multiple active ingredients (1,2). All of the following medications can be safely given together: Antibiotics including amoxicillin, cefdinir/Omnicef ®, amoxicillin-clavulanate/Augmentin ®, azithromycin/Zithromax ®, cephalexin/Keflex ®, and trimethoprim-sulfamethoxazole/Bactrim ® . Antihistamines including Benadryl ® /diphenhydramine, Claritin ® /loratidine, Zyrtec ... diphenhydrAMINE cetirizine. Applies to: ZzzQuil (diphenhydramine) and Zyrtec (cetirizine) Using cetirizine together with diphenhydrAMINE may increase side effects such as dizziness, drowsiness, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination.Thanks so much for reaching out! Always more than happy to answer questions like this. In general, it is not recommended to use both NyQuil and Claritin together due to a duplication of therapy between the two medications and the possibility of increased side effects.. Claritin is an antihistamine and NyQuil contains doxylamine, a …We all get annoyed with our parents at times, but this is different. Here’s how to get support for toxic parents, call it quits if you need to, and heal for good. We include produc...In general, you don't want to combine two products if they contain the same, or similar, drugs. Fortunately, DayQuil does not contain an antihistamine and is safe to take with Zyrtec (a second-generation antihistamine). There are some Zyrtec products and some DayQuil products that shouldn't be combined, however. For example, Zyrtec-D …

Jan 26, 2023 · Sudafed is the brand name for the medication pseudoephedrine, a decongestant.When you get a cold, the flu, a sinus infection, or allergies, blood vessels in your nose become swollen and inflamed.

Paxil is an SSRI (selective serotonin reuptake inhibitor) that does have a few drug interactions and considerations with over-the-counter medication that are important to be aware of. There are many that are safe to take. They include: Antihistamines (e.g. Claritin, Allegra, Benadryl, Zyrtec etc...) Tylenol (acetaminophen) Mucinex (guaifenesin ...Summary: Drug interactions are reported among people who take Montelukast sodium and Nyquil. Common interactions among females include bronchitis and headache. Common interactions among males include rash and urticaria. The phase IV clinical study analyzes what interactions people have when they take Montelukast sodium and Nyquil together.However, you must make sure that you are taking the main Mucinex together with Nyquil and not any of its variants (Mucinex DM) marketed by the same company.The reason is that Mucinex DM (the variant of Mucinex) also contains dextromethorphan which is one of the components present in Nyquil.. So taking the variant with Nyquil can cause …Yes, you can take Benadryl (diphenhydramine) and Dayquil together as they do not interact. However, most people take Dayquil to alleviate cough/cold symptoms without sedation, and taking Benadryl would defeat that purpose (since Benadryl tends to cause drowsiness). ... If you are looking for help sleeping while taking Dayquil, try …Since immediate-release Tylenol products have a duration of action of around four to six hours, you should separate it from NyQuil by at least this amount of time. Extended-release Tylenol products (e.g. Tylenol arthritis) last around eight hours per dose. Therefore, waiting around eight hours after taking extended-release Tylenol before taking ...NyQuil; Coricidin HBP Cold & Flu; Vicks DayQuil Cold & Flu; Tylenol (or generic acetaminophen) can be combined with ibuprofen. You can also take Tylenol while taking naproxen. Alternating Tylenol with ibuprofen is okay, as long as you make sure you are not taking more than the recommended amount for each medication in a 24-hour period or with ...Key points. DayQuil and NyQuil can be taken on the same day, but should not be taken at the same time as they share some of the same drugs (acetaminophen, dextromethorphan) The short answer here is that you can take them Nyquil & Dayquil together, but not at the same time. In this context, the "same time" means any time …All of the following medications can be safely given together: Antibiotics including amoxicillin, cefdinir/Omnicef ®, amoxicillin-clavulanate/Augmentin ®, azithromycin/Zithromax ®, cephalexin/Keflex ®, and trimethoprim-sulfamethoxazole/Bactrim ®.; Antihistamines including Benadryl ® /diphenhydramine, Claritin ® /loratidine, Zyrtec …Adults can take allergy medicine for a cold. Antihistamines are considered safe for adults. While their effectiveness is uncertain, it is generally safe for adults to take allergy medicine. ... Zyrtec D: cetirizine and pseudoephedrine; Other Treatments . ... Taking more than one antihistamine at a time can cause serious side effects. To prevent an …Answer. Typically, it is not recommended to use loratadine (Claritin) and cetirizine (Zyrtec) at the same time. Both medications are second-generation antihistamines used for allergy relief. Taking them together would not provide much-added benefit, but could lead to side effects such as drowsiness. In some patients, Zyrtec may work better than ...

How to make weapons non lethal cyberpunk.

Ice dispenser auger not turning.

At a glance. Theraflu Nighttime products contain diphenhydramine, a sedating first-generation antihistamine. Since Zyrtec is also an antihistamine, taking both can increase the risk of side effects like excess sedation and dry eyes. Intermittent use of diphenhydramine however, even if you are taking Zyrtec daily for allergy prevention, may be ...Applies to: Vicks NyQuil Cold & Flu Nighttime Relief (Alcohol Free) (acetaminophen / chlorpheniramine / dextromethorphan) and oxycodone. Using chlorpheniramine together with oxyCODONE may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience ...At the same time, levofloxacin may interact with other medications and supplements you take. Some interactions can affect how levofloxacin works. Others can raise your risk of side effects, such as low blood glucose (sugar). Levofloxacin can also cause “false positive” results on urine drug tests.Nyquil is commonly used to relieve symptoms of the common cold or flu, such as coughing, congestion, and sore throat. On the other hand, Zyrtec is an antihistamine that helps alleviate allergy symptoms like sneezing, itching, and runny nose. While both medications serve different purposes, they can potentially interact when taken simultaneously."Time out" is a technique some parents and teachers use when a child misbehaves. It involves the child leaving the environment and activities where the inappropriate behavior occur...Zyrtec & Xyzal Shouldn't Be Combined. By taking Zyrtec and Xyzal together, you would essentially be taking a double dose of antihistamines. It would be like taking two doses of Zyrtec (since, as mentioned above, one 5 mg dose of Xyzal is essentially equivalent to one 10mg dose of Zyrtec). While some studies report that certain individuals may ...dextromethorphan food. Applies to: Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine) Alcohol can increase the nervous system side effects of dextromethorphan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment.Warnings. One ingredient in this product is acetaminophen. Taking too much acetaminophen may cause serious (possibly fatal) liver disease. Adults should not take more than 4000 milligrams (4 grams ...A doctor has provided 1 answer. is it safe to take clariton 24 hour allergy medicine and dayquil/nyquil? would i get too sleep?: No: I would not advise taking theses medications together. They all ha. ….

You should start feeling the effects of these medications within an hour of taking a dose. Pain relievers: Pain relievers typically start working within the same amount of time. Both ibuprofen and acetaminophen kick in about 15 to 30 minutes after you take a dose. Decongestants: Oral decongestants, like pseudoephedrine, start working within 30 ..."Time out" is a technique some parents and teachers use when a child misbehaves. It involves the child leaving the environment and activities where the inappropriate behavior occur...Aug 30, 2022 · This can include diuretics, diabetes medications, and lithium. Interactions can result in low blood pressure, low blood sugar, and other signs and symptoms. Your healthcare provider and pharmacist can check for potential interactions. This can ensure you’re taking lisinopril with other medications safely. We all get annoyed with our parents at times, but this is different. Here’s how to get support for toxic parents, call it quits if you need to, and heal for good. We include produc...Antihistamine and decongestant combinations are used to treat the nasal congestion (stuffy nose), sneezing, and runny nose caused by colds and hay fever. Antihistamines work by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes. All of the following medications can be safely given together: Antibiotics including amoxicillin, cefdinir/Omnicef ®, amoxicillin-clavulanate/Augmentin ®, azithromycin/Zithromax ®, cephalexin/Keflex ®, and trimethoprim-sulfamethoxazole/Bactrim ® . Antihistamines including Benadryl ® /diphenhydramine, Claritin ® /loratidine, Zyrtec ... Yes, But: It's OK for a short while - if symptoms get worse or persist for over 7-10 days, you may have something more than a cold or the flu. If those happen, see you physician to have it checked out. Answered 3/16/2018. 3.4k views.doxylamine cetirizine. Applies to: Vicks NyQuil Severe Cold & Flu (acetaminophen / dextromethorphan / doxylamine / phenylephrine) and Zyrtec (cetirizine) Using cetirizine …Nov 23, 2021 · Since immediate-release Tylenol products have a duration of action of around four to six hours, you should separate it from NyQuil by at least this amount of time. Extended-release Tylenol products (e.g. Tylenol arthritis) last around eight hours per dose. Therefore, waiting around eight hours after taking extended-release Tylenol before taking ... Can i take nyquil and zyrtec at the same time, Xarelto disease interactions. There are 6 disease interactions with Xarelto (rivaroxaban) which include: bleeding. valvular heart disease. antiphospholipid syndrome. hepatic impairment. renal disease. unstable blood pressure., Yes: A non sedating antihistamine is fine to take with DayQuil, which does not have the antihistamine that is in NyQuil. Probably a good idea, too if you have enough symptoms to warrant it. Dayquil + zyrtec (cetirizine): Yes. Dayquil has acetaminophen, dextromethorphan and phenylephrine in it, and none of these are an antihistamine., Mar 19, 2023 · Zyrtec & Xyzal Shouldn't Be Combined. By taking Zyrtec and Xyzal together, you would essentially be taking a double dose of antihistamines. It would be like taking two doses of Zyrtec (since, as mentioned above, one 5 mg dose of Xyzal is essentially equivalent to one 10mg dose of Zyrtec). While some studies report that certain individuals may ... , Zyrtec (cetirizine) Naltrexone alcohol/food interactions. There is 1 alcohol/food interaction with naltrexone. Naltrexone disease interactions. There are 2 disease interactions with naltrexone which include ... assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No …, Allergy medications from different classes can typically be combined. For example, nasal steroids, like Flonase (fluticasone propionate), and oral decongestants, like Sudafed (pseudoephedrine), are safe to take together. Oral antihistamines, such as diphenhydramine (Benadryl) and cetirizine (Zyrtec), shouldn’t be taken together without a ..., High doses of antihistamines—even the “non-sedating” kind—can cause drowsiness and rapid heart rate. Medicines such as Zyrtec and Claritin are only “non-drowsy” at the FDA-approved dose. What’s more, an overdose of the “sedating” antihistamines (think Benadryl) can cause adverse events like seizures and hallucinations., View complete list of side effects. 4. Bottom Line. Zyrtec is an antihistamine that effectively treats allergic reactions such as hay fever or skin reactions caused by insect bites. Although drowsiness with Zyrtec is uncommon, Zyrtec is more likely than loratadine to cause drowsiness. 5., , We would like to show you a description here but the site won’t allow us., We would like to show you a description here but the site won’t allow us., Pain relievers: After 3 days if using for a fever or 10 days if using for pain. Oral decongestants: After 7 days of use. Decongestant nasal sprays: After 3 days of use. If any of these medications cause bothersome side effects, it’s best to stop using them. OTC cold medicines are generally well tolerated., Jan 26, 2023 · Sudafed is the brand name for the medication pseudoephedrine, a decongestant.When you get a cold, the flu, a sinus infection, or allergies, blood vessels in your nose become swollen and inflamed. , Can NyQuil and Zyrtec be taken at same time? ... Can you take nyquil night time cold and flu while on the depo shot? Nyquil night time cold and flu does not affect how well Depo Provera works ..., We all get annoyed with our parents at times, but this is different. Here’s how to get support for toxic parents, call it quits if you need to, and heal for good. We include produc..., Claritin ( loratadine ), a non-sedating 24-hour antihistamine, can be taken with most over counter cold medications, including: Analgesics such as Tylenol or Advil. Mucinex (guaifenesin) Delsym (dextromethorphan) Sudafed (pseudoephedrine) There are no reported interactions between Claritin and any of these drugs., Best Answer. Speaking from personal experience, the two don't mix well. Albuterol is a beta agonist (an upper) NyQuil contains a beta agonist, pseudoephedrine. Taking them at the same time will ..., We would like to show you a description here but the site won’t allow us., Aug 27, 2021 · Zyrtec and Nyquil must not be taken at the same time however, it is safe to take them both on the same day. Both must be separated from one another by at least a few hours to lessen the possibility of excess sedation and drowsiness. The major concern with using both Zyrtec and Nyquil at the same time is due to the threats of potential additive ... , Dextromethorphan (cough suppressant) Doxylamine (sedating antihistamine) Benadryl should not be taken with Robitussin Night Time Cough DM. This Robitussin product already contains a sedating, first-generation antihistamine (doxylamine) and therefore Benadryl should not be needed. Taking both together may cause excess …, Common side effects of NyQuil include constipation, appetite loss, anxiousness, stomach upset and queasiness, according to Drugs.com. Severe side effects include urinary difficulti..., Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No interaction information available. Further information. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances. Medical …, stomach upset or pain (more common with pyrilamine) unusual excitement, nervousness, restlessness, or irritability. unusual sleepiness, weakness or drowsiness, extreme tiredness. Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional., Zyrtec (cetirizine) Letrozole alcohol/food interactions. There is 1 alcohol/food interaction with letrozole. Letrozole disease interactions. There are 3 disease interactions with letrozole which include: liver disease ... assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No …, Anyone over 12 years of age can take two LiquiCaps or 30 ml of the NyQuil Liquid every six hours, but you must not exceed four doses over 24 hours. This medication has three active ingredients: acetaminophen, which relieves pain, dextromethorphan HBr, a cough suppressant, and doxylamine succinate, an antihistamine., We all get annoyed with our parents at times, but this is different. Here’s how to get support for toxic parents, call it quits if you need to, and heal for good. We include produc..., Zyrtec (cetirizine) Clomipramine alcohol/food interactions. There are 2 alcohol/food interactions with clomipramine. Clomipramine disease interactions. There are 22 disease interactions with ... assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No interaction …, Answer. Iron doesn’t have a drug interaction with Benadryl and they are safe to take together. However, iron absorption can be significantly affected by food and other medications if taken at the same time. For this reason, it is generally recommended to take iron by itself, about 30 minutes before food or 2 hours after food., At the same time, levofloxacin may interact with other medications and supplements you take. Some interactions can affect how levofloxacin works. Others can raise your risk of side effects, such as low blood glucose (sugar). Levofloxacin can also cause “false positive” results on urine drug tests., Zyrtec (cetirizine) Prazosin alcohol/food interactions. There is 1 alcohol/food interaction with prazosin. Prazosin disease interactions. There are 2 disease interactions with prazosin which include: hypotension; ... assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. Unknown: No …, Dec 9, 2022 · Can NyQuil and Zyrtec be taken at same time? ... Can you take nyquil night time cold and flu while on the depo shot? Nyquil night time cold and flu does not affect how well Depo Provera works ... , Applies to: Vicks NyQuil Cold & Flu Nighttime Relief (Alcohol Free) (acetaminophen / chlorpheniramine / dextromethorphan) and oxycodone. Using chlorpheniramine together with oxyCODONE may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience ..., Montelukast (Singular) is an oral medication used to treat asthma and seasonal allergies. Medications that can interact with montelukast include gemfibrozil (Lopid), certain seizure medications, and rifampin. It’s OK to take montelukast with certain antihistamines, such as cetirizine (Zyrtec). But some people may experience excessive ..., 3. Barbiturates and antiseizure medications. Barbiturates, phenytoin (Dilantin), and carbamazepine (Tegretol) are prescription medications that can make doxycycline leave your body faster. This can make doxycycline less effective, which could lead to an undertreated infection.