Central alpha-2 Adrenergic Agonist drugs compared
Compare all 14 Central alpha-2 Adrenergic Agonist drugs side by side, used for conditions such as attention deficit disorder with hyperactivity, diarrhea, dysmenorrhea. They share one FDA-defined mechanism but differ in approved uses, prescription status, brand-vs-generic options, price, and FDA recall-safety record — which our independent rating scores. The highest-rated is clonidine hydrochloride.
Top-rated central alpha-2 adrenergic agonist: 1. Clonidine Hydrochloride · 2. Dexmedetomidine Hydrochloride · 3. Guanfacine Hydrochloride
| Drug | Generic | Form | Status | Used for | Safety ratingFDA recall-based | Pharmacy pays |
|---|---|---|---|---|---|---|
| Clonidine Hydrochloride | — | Injectable | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | 72/100 | $1 |
| Dexmedetomidine Hydrochloride | — | Injectable | Prescription | Pain, Psychomotor Agitation | 72/100 | — |
| Guanfacine Hydrochloride | — | Tablet | Prescription | Attention Deficit Disorder with Hyperactivity, Hypertension | 72/100 | $5 |
| Onyda XR | Clonidine Hydrochloride | Suspension | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | 72/100 | $1 |
| Javadin | Clonidine Hydrochloride | Solution | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | 70/100 | $1 |
| Duraclon | Clonidine Hydrochloride | Injectable | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | 68/100 | $1 |
| Precedex | Dexmedetomidine Hydrochloride | Injectable | Prescription | Pain, Psychomotor Agitation | 60/100 | — |
| Catapres-Tts-1 | Clonidine | Patch | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | Not yet rated | $1 |
| Catapres-Tts-2 | Clonidine | Patch | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | Not yet rated | $1 |
| Catapres-Tts-3 | Clonidine | Patch | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | Not yet rated | $1 |
| Igalmi | Dexmedetomidine Hydrochloride | Film | Prescription | Pain, Psychomotor Agitation | Not yet rated | — |
| Nexiclon XR | Clonidine | Tablet | Prescription | Attention Deficit Disorder with Hyperactivity, Diarrhea | Not yet rated | $1 |
The safety rating column is unique to pharmaranks — an independent 0–100 score from FDA regulatory recall data. Higher is safer. Not medical advice.
Best central alpha-2 adrenergic agonist by condition
Full ranking · 14 drugs
- 172/100
clonidine hydrochloride
Clonidine Hydrochloride
- 272/100
dexmedetomidine hydrochloride
Dexmedetomidine Hydrochloride
- 372/100
guanfacine hydrochloride
Guanfacine Hydrochloride
- 472/100
onyda xr
Clonidine Hydrochloride
- 570/100
javadin
Clonidine Hydrochloride
- 668/100
duraclon
Clonidine Hydrochloride
- 760/100
precedex
Dexmedetomidine Hydrochloride
- 8New
catapres-tts-1
Clonidine
- 9New
catapres-tts-2
Clonidine
- 10New
catapres-tts-3
Clonidine
- 11New
igalmi
Dexmedetomidine Hydrochloride
- 12New
nexiclon xr
Clonidine
- 13New
ontralfy
Tizanidine Hydrochloride
- 14New
zanaflex
Tizanidine Hydrochloride
Frequently asked questions
What is the Central alpha-2 Adrenergic Agonist drug class?
Central alpha-2 Adrenergic Agonist is an FDA Established Pharmacologic Class (EPC) — a group of drugs that share a mechanism of action. pharmaranks lists 14 Central alpha-2 Adrenergic Agonist products, each independently rated.
Are all Central alpha-2 Adrenergic Agonist drugs the same?
No. Central alpha-2 Adrenergic Agonist drugs share the same core mechanism — that is why they sit in one FDA class — but they differ in their approved uses, available forms, whether they are prescription or over-the-counter, brand-vs-generic options and price, and their FDA recall-safety record.
What conditions do Central alpha-2 Adrenergic Agonist drugs treat?
Per NIH RxClass drug-classification data, Central alpha-2 Adrenergic Agonist drugs are used for conditions including attention deficit disorder with hyperactivity, diarrhea, dysmenorrhea, tourette syndrome, glaucoma, hypertension.
Which Central alpha-2 Adrenergic Agonist drug is best-rated?
By our independent rating, clonidine hydrochloride currently ranks highest among Central alpha-2 Adrenergic Agonist drugs. Ratings are based on FDA regulatory (recall-safety) data — always consult a professional.
Sources: the Central alpha-2 Adrenergic Agonist class definition and its member drugs come from the U.S. NLM RxClass (Established Pharmacologic Class); how the class works is summarized from Clonidine - StatPearls - NCBI Bookshelf. Ratings are pharmaranks’ independent FDA recall-safety analysis.