Comparing Clonidine vs Guanfacine
Clonidine | Guanfacine |
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Clonidine | Guanfacine |
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Prescription only
Clonidine can be used to lower blood pressure and extended-release forms are used to treat ADHD; however, it causes sedation, and tolerance can develop to its blood pressure-lowering effects... View more |
Prescription only
Guanfacine is used to treat high blood pressure and the extended-release form (brand name Intuniv) is approved for the treatment of ADHD. Guanfacine can cause sedation, especially on therapy... View more |
Related suggestions High Blood Pressure (Hypertension)
ADHD (Attention Deficit Hyperactivity Disorder)
Tourette's Syndrome
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More about Clonidine | More about Guanfacine | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Clonidine has an average rating of 7.1 out of 10 from a total of 778 ratings on Drugs.com. 61% of reviewers reported a positive effect, while 21% 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. | |||||||||||||||||
View all Clonidine side effects |
View all Guanfacine side effects |
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Drug Class | |||||||||||||||||
Generic Availability | |||||||||||||||||
Lower cost generic |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Clonidine prices |
View all Guanfacine prices |
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Dosage Forms | |||||||||||||||||
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Brand Names | |||||||||||||||||
Catapres, Catapres-TTS, Clonidine ER, 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. | |||||||||||||||||
15 hours |
18 hours |
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CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
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 | |||||||||||||||||
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 | |||||||||||||||||
A total of 378 drugs are known to interact with Clonidine:
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A total of 490 drugs are known to interact with Guanfacine:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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Disease Interactions | |||||||||||||||||
First Approval Date | |||||||||||||||||
September 03, 1974 |
October 27, 1986 |
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WADA Class View classifications | |||||||||||||||||
N/A |
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More Information | |||||||||||||||||
Patient Resources | |||||||||||||||||
Professional Resources | |||||||||||||||||
Related Treatment Guide | |||||||||||||||||
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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.