Catapres-tts-1 and Verelan drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported only by a few people who take Catapres-tts-1 and Verelan together.
The phase IV clinical study analyzes what interactions people who take Catapres-tts-1 and Verelan have. It is created by eHealthMe based on reports of 3 people who take the same drugs from the FDA, and is updated regularly.
Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 600+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.
3 people who take Catapres-tts-1 and Verelan together, and have interactions are studied.
What is Catapres-tts-1?
Catapres-tts-1 has active ingredients of clonidine. It is often used in high blood pressure. eHealthMe is studying from 2,047 Catapres-tts-1 users for its effectiveness, alternative drugs and more.
What is Verelan?
Verelan has active ingredients of verapamil hydrochloride. It is often used in high blood pressure. eHealthMe is studying from 1,356 Verelan users for its effectiveness, alternative drugs and more.
Number of Catapres-tts-1 and Verelan reports submitted per year:

Common Catapres-Tts-1 and Verelan drug interactions by gender *:
female:
- Cerebrovascular accident
- Amnesia
- Pulmonary embolism
- Sleep apnoea syndrome
- Speech disorder
- Transient ischaemic attack
- Abdominal pain
- Cognitive disorder
- Diarrhoea
- Dyspepsia
male:
n/a
Common Catapres-Tts-1 and Verelan drug interactions by age *:
0-1:
n/a
2-9:
n/a
10-19:
n/a
20-29:
n/a
30-39:
n/a
40-49:
- Oedema peripheral
- Pain
- Pulmonary embolism
- Sleep apnoea syndrome
- Speech disorder
- Transient ischaemic attack
- Cognitive disorder
- Dyspepsia
- Gastrooesophageal reflux disease
- Hypersomnia
50-59:
n/a
60+:
- Abdominal pain
- Diarrhoea
* Approximation only. Some reports may have incomplete information.
Do you take Catapres-tts-1 and Verelan?
Personalize this study to your gender and ageHow to use the study?
You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.
Related publications that referenced our studies
- Teimoory M, Arefi M, Behnoush B, Bastani B, "Promethazine and Treatment Refractory Agitation in Clonidine Toxicity", International Journal of Medical Toxicology and Forensic Medicine, 2013 Mar .
Related studies
Alternative drugs to, pros and cons of the 2 drugs:
- Catapres-tts-1 (2,047 reports)
- Verelan (1,356 reports)
Browse all drug interactions of Catapres-tts-1 and Verelan:
a b c d e f g h i j k l m n o p q r s t u v w x y zCommon Catapres-tts-1 side effects:
- High blood pressure: 510 reports
- Drug ineffective: 186 reports
- Blood pressure management: 160 reports
- Headache (pain in head): 128 reports
- Rashes (redness): 119 reports
- Dizziness: 118 reports
Browse all side effects of Catapres-tts-1:
a b c d e f g h i j k l m n o p q r s t u v w x y zCommon Verelan side effects:
- Fatigue (feeling of tiredness): 105 reports
- Headache (pain in head): 104 reports
Browse all side effects of Verelan:
a b c d e f g h i j k l m n o p q r s t u v w x y zCommon Catapres-tts-1 interactions:
- Catapres-tts-1 and Aspirin: 187 reports
- Catapres-tts-1 and Norvasc: 183 reports
- Catapres-tts-1 and Lasix: 155 reports
- Catapres-tts-1 and Lisinopril: 144 reports
- Catapres-tts-1 and Synthroid: 133 reports
- Catapres-tts-1 and Lipitor: 103 reports
- Catapres-tts-1 and Diovan: 101 reports
Browse all interactions between Catapres-tts-1 and drugs from A to Z:
a b c d e f g h i j k l m n o p q r s t u v w x y zCommon Verelan interactions:
- Verelan and Aspirin: 158 reports
- Verelan and Lasix: 155 reports
- Verelan and Synthroid: 143 reports
- Verelan and Lipitor: 130 reports
- Verelan and Nexium: 111 reports
- Verelan and Prilosec: 104 reports
Browse all interactions between Verelan and drugs from A to Z:
a b c d e f g h i j k l m n o p q r s t u v w x y zHow the study uses the data?
The study uses data from the FDA. It is based on clonidine and verapamil hydrochloride (the active ingredients of Catapres-tts-1 and Verelan, respectively), and Catapres-tts-1 and Verelan (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study. Patients in the study may take other drugs besides Catapres-tts-1 and Verelan.
Who is eHealthMe?
With medical big data and proven AI algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 600+ medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).
WARNING, DISCLAIMER, USE FOR PUBLICATION
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 eHealthMe.com 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. Our phase IV clinical studies alone cannot establish cause-effect relationship. 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.
If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.
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