Comparing Clonidine ER vs Guanfacine
| Clonidine ER (clonidine) | Guanfacine |
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| Clonidine ER (clonidine) | Guanfacine |
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Prescription only
Prescribed for ADHD. Clonidine ER may also be used for purposes not listed in this medication guide. |
Prescription only
Guanfacine is used to treat high blood pressure alone or with other antihypertensives. Extended-release guanfacine is used to treat ADHD in children 6 years to 18 years. Dry mouth, sedation... View more |
Related suggestions ADHD (Attention Deficit Hyperactivity Disorder)
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| More about (clonidine) | More about Guanfacine | ||||||||
| Ratings & Reviews | |||||||||
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Clonidine ER has an average rating of 10.0 out of 10 from a total of 1 ratings on Drugs.com. 100% of reviewers reported a positive effect, while 0% reported a negative effect. |
Guanfacine has an average rating of 6.1 out of 10 from a total of 318 ratings on Drugs.com. 50% of reviewers reported a positive effect, while 32% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
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View all Clonidine ER side effects |
View all Guanfacine side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
| Lower cost generic approved |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Guanfacine prices |
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| Dosage Forms | |||||||||
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N/A |
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| Brand Names | |||||||||
| Other clonidine brands include: Catapres, Catapres-TTS, Duraclon, Kapvay, Nexiclon XR, Onyda XR | Intuniv | ||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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15 hours |
18 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||
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Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 378 drugs are known to interact with Clonidine ER:
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A total of 492 drugs are known to interact with Guanfacine:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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| Disease Interactions | |||||||||
| First Approval Date | |||||||||
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N/A |
October 27, 1986 |
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| WADA Class View classifications | |||||||||
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N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
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N/A |
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| Professional Resources | |||||||||
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N/A |
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| Related Treatment Guide | |||||||||
1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.