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Review: taking Allegra and Intuniv together

Summary: drug interactions are reported among people who take Allegra and Intuniv together.

This review analyzes the effectiveness and drug interactions between Allegra and Intuniv. It is created by eHealthMe based on reports of 35 people who take the same drugs from FDA and social media, and is updated regularly.





You are not alone: join a mobile support group for people who take Allegra and Intuniv >>>

What are the drugs

Allegra has active ingredients of fexofenadine hydrochloride. It is often used in allergies. (latest outcomes from 23,863 Allegra users)

Intuniv has active ingredients of guanfacine hydrochloride. It is often used in attention deficit hyperactivity disorder. (latest outcomes from 835 Intuniv users)

On Feb, 5, 2015: 35 people who take Allegra, Intuniv are studied

Allegra, Intuniv outcomes

Drug combinations in study:
- Allegra (fexofenadine hydrochloride)
- Intuniv (guanfacine hydrochloride)

Drug effectiveness over time :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Allegra is effectiven/an/an/an/a0.00%
(0 of 1 people)
(1 of 1 people)
Intuniv is effective100.00%
(1 of 1 people)
(0 of 1 people)

Most common drug interactions over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Eye PainEye Painn/an/aHypertension AggravatedHypertension Aggravatedn/aDizziness
Muscle SpasmsMuscle SpasmsSinusitis
Muscle TwitchingMuscle TwitchingFatigue
Excessive Eye BlinkingExcessive Eye BlinkingDepression
ConvulsionConvulsionMuscle Spasms
HeadacheHeadacheRespiratory Failure
Disturbance In Social BehaviourCompulsive HoardingSepsis
Disturbance In Social BehaviourAsthenia
Pharyngolaryngeal Pain
Pain In Extremity

Drug effectiveness by gender :

Allegra is effective100.00%
(1 of 1 people)
(0 of 1 people)
Intuniv is effective0.00%
(0 of 1 people)
(1 of 1 people)

Most common drug interactions by gender * :

Respiratory FailureAsthenia
ApathyMuscle Twitching
Withdrawal SyndromeExcessive Eye Blinking
DizzinessEye Pain
Abdominal Pain UpperMuscle Spasms
Depressed MoodPharyngolaryngeal Pain
Musculoskeletal StiffnessPain In Extremity
Blood Pressure IncreasedHyperhidrosis

Drug effectiveness by age :

Allegra is effectiven/a0.00%
(0 of 1 people)
(1 of 1 people)
Intuniv is effectiven/a100.00%
(1 of 1 people)
(0 of 1 people)

Most common drug interactions by age * :

n/aConvulsionPancreatic Pseudocystn/aGallbladder InjuryApathyPanic AttackRespiratory Failure
Muscle SpasmsMultiple InjuriesInjuryDepressed MoodPainSinusitis
Muscle TwitchingPancreatitisAnxietyBlood Pressure IncreasedOsteoarthritisSepsis
Excessive Eye BlinkingCompulsive HoardingGeneral Physical Health DeteriorationAbdominal Pain UpperPitting OedemaChest Pain
Eye PainDepressionCholecystitis ChronicDepressionPneumoniaLimb Injury
DiarrhoeaCongenital Pancreatic AnomalyPainNauseaPulmonary HypertensionLiver Injury
VomitingDysgeusiaEmotional DistressWithdrawal SyndromeProductive CoughLiver Disorder
Drug Administration ErrorDisturbance In AttentionChillsOedema PeripheralArthritis
VomitingPharyngolaryngeal PainOcular HyperaemiaAbdominal Pain
Alanine Aminotransferase IncreasedHyperhidrosisMuscle SpasmsAbdominal Discomfort

* Some reports may have incomplete information.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

Do you take Allegra and Intuniv?

You are not alone! Join a related mobile support group:
- support group for people who take Allegra and Intuniv
- support group for people who take Allegra
- support group for people who take Intuniv

Can you answer these questions (Ask a question):

More questions for: Allegra, Intuniv

You may be interested at these reviews (Write a review):

  • Respiridone causes hyper activity
    My 7yr old is taking intuniv in the AM and respiridone @ pm but it makes run around crazy like a boost of energy
  • Swelling and pain in one of my breasts after using fexofanadine
    I took them for one week or two as an anti allergic drug and I found these conditions in my body. Then I stopped it for 6 months as I was away from allergenic country (Australia) and there was no symptoms. When I came back to Australia and needed Fexofenadine again, I used it for 1 week and I again notice swelling and pain in one of my breasts.
  • Heavy breathing caused from tenex?
    My son is on tenex and is doing this heavy breathing. Not sure if its another motor tic or if it is from the medicine. Any other experiences with this and tenex?
  • Wheezing stopped after topamax sessesion
    Wheezing noted by primary physician in this non-smoker. Stopped Topamax per doctor's instruction. 48 hours later was examined by physician and noted that wheezing stopped.
  • Intuniv and tardive dyskenesia
    My daughter has autism and hyperactivity. She was treated with Intuniv for about 2 years. She developed tardive dyskenesia. I am currently in the process of finding ways to treat it. I have tried Zantac, baclofen, no treatment. so far those have not helped. I am going to try vitamin B6 now in hope of alleviating the condition.

More reviews for: Allegra, Intuniv

Complete drug side effects:

On eHealthMe, Allegra (fexofenadine hydrochloride) is often used to treat allergies. Intuniv (guanfacine hydrochloride) is often used to treat attention deficit hyperactivity disorder. Find out below the conditions the drugs are used for, how effective they are, and any alternative drugs that you can use to treat those same conditions.

What is the drug used for and how effective is it:

Other drugs that are used to treat the same conditions:

NOTE: The study is based on active ingredients. Other drugs that have the same active ingredients are also considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.


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