Who are Guanidin's main competitors?

Direct comparators (same drug class / molecular target / therapeutic area): Firdapse, SR-fampridine, Sustained-release oral dalfampridine, Ezogabine/Retigabine IR, fampridine, BIIB041 (Fampridine-SR).

How often does this brief refresh?

Every 30 minutes from primary sources (FDA, EMA, MHRA, PMDA, ClinicalTrials.gov, USPTO). Subscribe to the RSS feed below for push alerts.

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Last reviewed 2026-05-15 · How we verify

Guanidin — Competitive Intelligence Brief

Guanidin (GUANIDINE) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Acetylcholine Releasing Agent. Area: Neuroscience.

marketed Acetylcholine Releasing Agent Voltage-gated potassium channel Neuroscience Small molecule Live · refreshed every 30 min

Target snapshot

Guanidin (GUANIDINE) — Merck & Co..

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

Drug	Generic	Sponsor	Phase	Class	Target	Approval / PDUFA
Guanidin TARGET	GUANIDINE	Merck & Co.	marketed	Acetylcholine Releasing Agent	Voltage-gated potassium channel	1939-01-01
Firdapse	AMIFAMPRIDINE	Catalyst Pharms	marketed	Potassium Channel Blocker	Voltage-gated potassium channel	2018-01-01
SR-fampridine	SR-fampridine	University of Southern Denmark	marketed	Potassium channel blocker	Voltage-gated potassium channels
Sustained-release oral dalfampridine	Sustained-release oral dalfampridine	Sheba Medical Center	marketed	Potassium channel blocker	Voltage-gated potassium channels (Kv channels)
Ezogabine/Retigabine IR	Ezogabine/Retigabine IR	GlaxoSmithKline	marketed	Potassium channel opener	Kv7 (KCNQ) voltage-gated potassium channels
fampridine	fampridine	Biogen	marketed		Voltage-gated potassium channel, Potassium voltage-gated channel subfamily C member 1, Potassium voltage-gated channel subfamily C member 2
BIIB041 (Fampridine-SR)	BIIB041 (Fampridine-SR)	Biogen	phase 3	Potassium channel blocker	Voltage-gated potassium channels (Kv1.4, Kv3.1)

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Acetylcholine Releasing Agent class)

Merck & Co. · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Guanidin — Competitive Intelligence Brief. https://druglandscape.com/ci/guanidine. Accessed 2026-05-15.

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