INN monograph
Cyclopentolate
Therapeutic agent (verify pharmacological class) · POM
Verified · Updated 01 Aug 2026 · Source: Local active-ingredient clinical extract; FDA drug label via OpenFDA/DailyMed; Professional class pharmacology (Therapeutic agent (verify pharmacological class))
Kenya market
Wholesale / list prices where loaded
Risk first
Contraindications
- Hypersensitivity to the active substance or excipients.
- Additional absolute contraindications are indication- and product-specific — consult SmPC.
Precautions
- WARNINGS: FOR TOPICAL OPHTHALMIC USE ONLY .
- NOT FOR INJECTION.
- This preparation may cause Central Nervous System (CNS) disturbances.
- This is especially true in younger age groups, but may occur at any age, especially with the stronger solutions.
- Infants are especially prone to CNS and cardiopulmonary side effects from cyclopentolate.
- To minimize absorption, use only 1 drop of 0.5% CYCLOGYL solution per eye, followed by pressure applied over the nasolacrimal sac for two to three minutes.
- Observe infants closely for at least 30 minutes following instillation.
- Mydriatics may produce a transient elevation of intraocular pressure.
- Therefore, patients with untreated narrow angle glaucoma or anatomically narrow angles may be susceptible to angle closure following administration.
Point of care
Dosing
Adult
DOSAGE AND ADMINISTRATION: Adults: Instill one or two drops of 0.5%, 1% or 2% solution in the eye which may be repeated in five to ten minutes if necessary. Complete recovery usually occurs in 24 hours. Complete recovery from mydriasis in some individuals may require several days. Children: Instill one or two drops of 0.5%, 1% or 2% solution in the eye which may be repeated five to ten minutes later by a second application of 0.5% or 1% solution if necessary. Small Infants: A single instillation of one drop of 0.5% in the eye. To minimize absorption, apply pressure over the nasolacrimal sac for two to three minutes. Observe infant closely for at least 30 minutes following instillation. Individuals with heavily pigmented irides may require higher strengths.
Paediatric
Pediatric Use: Use of cyclopentolate has been associated with psychotic reactions and behavioral disturbances in pediatric patients. Increased susceptibility to cyclopentolate has been reported in infants, young children, and in children with spastic paralysis or brain damage. These disturbances include ataxia, incoherent speech, restlessness, hallucinations, hyperactivity, seizures, disorientation as to time and place, and failure to recognize people. Feeding intolerance and necrotizing enterocolitis (NEC) in preterm infants may follow ophthalmic use of this product. Cases of NEC have been reported in preterm infants following administration; however, causality has not been established. It is recommended that feeding be withheld for four (4) hours after examination. Observe infants closely for at least 30 minutes (see WARNINGS).
Renal
Review renal impairment dosing; many agents need CrCl/eGFR adjustment.
- CrCl 0–120: Confirm renal dosing in product SmPC / primary label.
Hepatic
Review hepatic impairment dosing; monitor LFTs if agent is hepatically cleared or hepatotoxic.
Safety
Drug interactions
- Professional use: confirm indication, dose, duration, monitoring and patient counselling points against current Kenya STG / EML and the product SmPC.
- Document allergy status and key interactions.
Safety
Adverse effects
- ADVERSE REACTIONS: Ocular: Increased intraocular pressure, burning, photophobia, blurred vision, irritation, hyperemia, conjunctivitis, blepharoconjunctivitis, punctate keratitis, synechiae have been reported.
- Non-ocular: Use of cyclopentolate has been associated with psychotic reactions and behavioral disturbances, usually in children, especially with 2% concentration.
- These disturbances include ataxia, incoherent speech, restlessness, hallucinations, hyperactivity, seizures, disorientation as to time and place, and failure to recognize people.
- This drug produces reactions similar to those of other anticholinergic drugs, but the central nervous system manifestations as noted above are more common.
- Other toxic manifestations of anticholinergic drugs are skin rash, abdominal distention in infants, unusual drowsiness, tachycardia, hyperpyrexia, vasodilation, urinary retention, diminished gastrointestinal motility and decreased secretion in salivary and sweat glands, pharynx, bronchi and nasal passages.
- Severe manifestations of toxicity include coma, medullary paralysis and death.
Use
Indications
- INDICATIONS AND USAGE: Cyclopentolate hydrochloride is used to produce mydriasis and cycloplegia.
- Clinical selection for Cyclopentolate should follow culture results where relevant, Kenya STG/EML recommendations, and the current product SmPC.
- Class context: Therapeutic agent (verify pharmacological class).
- Confirm site-specific dose, duration and monitoring before prescribing.
Pharmacology
Mode of action
Mechanism is agent-specific.
Full mechanism text
Mechanism is agent-specific. At receptor, enzyme, ion channel, transporter or microbial target level, the drug alters a physiological or pathological pathway to produce its therapeutic effect. Confirm precise molecular mechanism in current SmPC / pharmacology reference for this INN before high-stakes decisions.
ADME
Pharmacokinetics & PD
| Onset | Product-specific |
|---|---|
| Duration | Product-specific |
| Route | OPHTHALMIC |
Full PK/PD text
CLINICAL PHARMACOLOGY: This anticholinergic preparation blocks the responses of the sphincter muscle of the iris and the accommodative muscle of the ciliary body to cholinergic stimulation, producing pupillary dilation (mydriasis) and paralysis of accommodation (cycloplegia). It acts rapidly, but has a shorter duration than atropine. Maximal cycloplegia occurs within 25 to 75 minutes after instillation. Complete recovery of accommodation usually takes 6 to 24 hours. Complete recovery from mydriasis in some individuals may require several days. Heavily pigmented irides may require more doses than lightly pigmented irides.
Kenya
Brands & prices
| Brand | Company | Pack | KES |
|---|---|---|---|
| Cyclogel | Alcon Pharmaceuticals | Standard Commercial Pack | — |
| Cyclolat | Medicom Healthcare Ltd | Standard Commercial Pack | — |
| CYCLOLAT EYE | DAIMA BIASHARA / Wholesale Import | DROPS 5ML(CYCLOPENTOLATE) | 181.40 |
Special populations
Pregnancy & lactation
Pregnancy
Pregnancy: Animal reproduction studies have not been conducted with cyclopentolate. It is also not known whether cyclopentolate can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Cyclopentolate should be administered to a pregnant woman only if clearly needed.
Lactation
Assess infant risk vs benefit of maternal therapy; prefer agents with lactation data.
Diet
Food & alcohol
- Drug & food interactions (label) Drug Interactions: Cyclopentolate may interfere with the ocular anti-hypertensive action of carbachol, pilocarpine, or ophthalmic cholinesterase inhibitors.
Trust
Sources & disclaimer
Source: Local active-ingredient clinical extract; FDA drug label via OpenFDA/DailyMed; Professional class pharmacology (Therapeutic agent (verify pharmacological class))
Last reviewed: 01 Aug 2026
Decision support only — not a substitute for clinical judgment, product SmPC, or Kenya STG/EML.