Atropine Sulfate: Brands, Price & Uses in Bangladesh

Atropine Sulfate is a naturally occurring antimuscarinic (anticholinergic) alkaloid used in several distinct clinical settings, ranging from emergency cardiac and toxicological use to routine ophthalmic examination.

Established/FDA-approved uses

• Symptomatic bradycardia: First-line treatment for hemodynamically significant sinus bradycardia and certain bradyarrhythmias, including in advanced cardiac life support (ACLS) protocols.
• Antidote for organophosphate/carbamate insecticide poisoning and nerve agent (cholinergic) toxicity: Used to reverse the muscarinic effects of excess acetylcholine (excessive secretions, bradycardia, bronchospasm) caused by cholinesterase-inhibiting poisons.
• Antidote for overdose of cholinergic drugs (e.g. cholinesterase inhibitors such as physostigmine or excessive pyridostigmine/neostigmine effect).
• Preanesthetic medication: To reduce salivary and bronchial secretions and to block vagally mediated reflex bradycardia during induction of anesthesia, intubation, or surgery.
• Ophthalmic mydriasis and cycloplegia: As eye drops/ointment, for pupil dilation and paralysis of accommodation to permit thorough examination of the retina and accurate refraction, and in the treatment of anterior uveitis/iritis (to relieve ciliary spasm, reduce pain, and prevent posterior synechiae).

Guideline-supported / adjunct uses

• Reversal of neuromuscular blockade: Given together with an anticholinesterase agent (e.g. neostigmine) at the end of surgery to counteract the excessive muscarinic (cholinergic) side effects — such as bradycardia, excess secretions, and bronchospasm — that the anticholinesterase would otherwise cause.
• Antispasmodic/antisecretory adjunct in selected gastrointestinal or genitourinary spasm, and as an antisialagogue to reduce excessive drooling in selected clinical situations, generally as an adjunct rather than a first-line treatment.

Use of Atropine Sulfate should always be guided by the specific clinical indication, and dosing and route (systemic vs. ophthalmic) differ substantially between these uses.

Dosing of Atropine Sulfate varies substantially by indication, route, and patient age/weight, and should always be individualized by the treating physician.

Bradycardia (adult, e.g. ACLS)

Organophosphate/carbamate poisoning or nerve agent exposure (adult)

Preanesthetic medication (adult)

Ophthalmic mydriasis/cycloplegia and uveitis (adult and pediatric)

Pediatric and weight-based dosing for bradycardia and poisoning antidote use are described under Use in Special Populations. Exact dose, route, frequency, and total duration must be determined by the treating physician based on the specific indication and clinical response.

Side effects of Atropine Sulfate are largely predictable extensions of its anticholinergic action and are generally dose-related.

• Common: dry mouth, blurred vision, photophobia (light sensitivity), pupil dilation, mild tachycardia/palpitations, flushing, decreased sweating, constipation, and difficulty urinating/urinary hesitancy.
• Less common but important: confusion, restlessness, drowsiness, or (particularly in the elderly or at higher doses) agitation and hallucinations; urinary retention; heat intolerance due to decreased sweating.
• Ophthalmic use: local stinging or burning on instillation, eye irritation, increased intraocular pressure (particularly with predisposition to angle closure), and, with prolonged use, contact dermatitis of the eyelids.
• High dose/rapid administration: marked tachycardia, and, rarely, cardiac arrhythmias.