Tropicamet
Tropicamet Uses, Dosage, Side Effects, Mechanism of Action, How Long Does it Take to Work? Tropicamet is a brand name. Its generic name is Tropicamide.
Tropicamet
Tropicamet is a topical antimuscarinic medication that is used to reduce the particle size of the pupil of the eye to inhibit visual accommodation for diagnostic and therapeutic procedures. It has a marked effect on pupillary size and a marked effect on visual accommodation for a short duration of time.
Uses for
Tropicamet is used to reduce pupil size for diagnostic procedures like ophthalmoscopy, endothelial specular microscopy, fundus photography, and tonography. Its use also includes therapeutic management of acute angle-closure glaucoma and sympathetic ophthalmia.
Mechanism of Action
Tropicamet binds to muscarinic acetylcholine receptors on the iris sphincter muscle resulting in a decrease in the muscle's contractility. This results in mydriasis (dilation) and cycloplegia (paralysis of accommodation). Tropicamet is also believed to decrease intraocular pressure.
How Long Does It Take to Work?
Tropicamet begins to take effect within 30 minutes and can last for up to 8 hours.
Absorption
Tropicamet is rapidly absorbed through the corneal and conjunctival epithelium. It is also absorbed through the ciliary body and iris.
Route of Elimination
Tropicamet is metabolized in the liver and excreted through the kidneys.
Dosage
The recommended dose of tropicamide is one drop of a 0.5% or 1% solution into the conjunctival sac of the affected eye. The strength and amount of medicinal product must be specified when prescribing and/or dispensing tropicamide.
Administration
Tropicamet is administered via topical ophthalmic route. It should not come into contact with the eye lids and conjunctivae.
Side Effects
The most common reported side effects from tropicamide use are burning, stinging, discomfort or a feeling of foreign body sensation in the eyes, blurred vision, myopia, conjunctival hyperemia, decrease in intraocular pressure, transient ischemic optic neuropathy, ciliary block glaucoma, circumpapillary telengiectasia, purulent conjunctivitis, cystoid macular edema, and keratitis. It can also cause systemic effects on the cardiovascular system, such as tachycardia and hypertension.
Toxicity
Tropicamet is not known to be toxic at therapeutic doses. In case of accidental ingestion, the effects may include blurred vision, drowsiness, insomnia, loss of appetite, nausea, vomiting and increased salivation and bronchial secretions.
Precaution
Patients should be monitored for signs and symptoms of systemic side effects such as hypertension and tachycardia, especially in those with a history of cardiovascular disease. Long-term use of tropicamide may increase the risk of cataracts so patients should be monitored for any changes in vision. It should not be used in patients with known hypersensitivity to anticholinergics.
Interaction
Tropicamet may interact with other medications, including anticonvulsants, antidepressants, antiarrhythmics, digitalis glycosides, narcotics, orphenadrine, quinidine, and sedatives. It may also interact with antihistamines, antimuscarinics, and para-aminobenzoic acid.
Disease Interactions
Tropicamet should be used with caution in patients with angle-closure glaucoma, congestive heart failure, urinary retention, arrhythmias, and bronchial asthma. It may exacerbate narrow angle glaucoma in some patients.
Drug Interactions
Tropicamet may interact with other ophthalmic products such as mydriatics, miotics, adrenergics, anti-inflammatory agents, and antiglaucoma agents. It may also interact with medications used to treat neurological disorders, cardiovascular disorders, and gastrointestinal disorders.
Food Interactions
Tropicamet should not be taken with food, as it can impair absorption.
Pregnancy Use
Tropicamet should be used during pregnancy only if clearly needed. The safety and efficacy of the drug in pregnant women has not been established.
Lactation Use
Tropicamet is excreted in the breast milk, and should not be used during lactation.
Acute Overdose
Acute overdose of tropicamide may cause tachycardia, hypertension, and CNS disturbances, although the effects are usually mild. Treatment is symptomatic and supportive.
Contraindication
Tropicamet is contraindicated in patients with narrow angle glaucoma, hypersensitivity to anticholinergics, and in patients with a history of peptic ulcer disease, bladder neck obstruction, or hiatal hernia.
Use Direction
Tropicamet should be administered as one drop of the appropriate concentration into the conjunctival sac of the affected eye three to four times daily. It should not be used for more than 2 weeks without consulting a physician.
Storage Condition
Tropicamet should be stored at room temperature between 15° C and 30° C. Protect from light and moisture and keep away from children.
Volume of Distribution
The volume of distribution for tropicamide is approximately 10-15L/kg.
Half Life
The elimination half-life of tropicamide is approximately 1.6 hours.
Clearance
The clearance of tropicamide is approximately 35-60 mL/min/kg.
Here you find in details version of Tropicamet
Some Frequently Asked Questions About Tropicamet
.What is Tropicamet?
Tropicamet is a medication used to temporarily enlarge the pupil of the eye. It may be used for diagnostic or therapeutic purposes.
What are the side effects of Tropicamet?
Common side effects may include dry eyes, eye irritation, blurred vision, increased sensitivity to light, and/or temporary changes in eye color, or increased pressure in the eye.
How does Tropicamet work?
Tropicamet works by temporarily paralyzing the ciliary muscle of the eye, which is responsible for pupil constriction. By paralyzing this muscle, the pupil remains dilated for a period of time.
What are the uses of Tropicamet?
Tropicamet is used to temporarily expand the pupil or to enhance visualization of the anterior segment of the eye. It may be used during ophthalmic procedures such as retinal examination, gonioscopy, or the placement of iris lenses, and for diagnosis of conditions including glaucoma and cataracts.
What is the dosage of Tropicamet?
The recommended dose of Tropicamet is 0.5–1% solution, usually applied as single drops into conjunctival sacs. Children may require lower dosages.
When should Tropicamet not be used?
Tropicamet should not be used in people with active inflammatory eye conditions, or in people who have had an allergic reaction to Tropicamet.
What should I tell my doctor before using Tropicamet?
Tell your doctor about any health conditions you have, any medications you take, and if you are pregnant, breastfeeding, or plan to become pregnant.
Can Tropicamet be used in children?
Yes, Tropicamet can be used in children, but lower dosages may be necessary. Always consult a doctor for specific instructions on how to use Tropicamet in children.
Can you become dependent on Tropicamet?
No, Tropicamet is not a habit-forming medication and will not cause dependence.
Can Tropicamet be used for long-term?
No, Tropicamet is intended only for short-term use to temporarily dilate the pupils.
Is Tropicamet safe?
Yes, when used as directed, Tropicamet is safe. Always consult a doctor for instructions on how to use Tropicamet appropriately.
Can Tropicamet be used with contacts in?
No, contact lenses should be removed before the administration of Tropicamet. Reinsert the contacts after 15 minutes.
Can Tropicamet cause blurry vision?
Yes, temporarily blurred vision is one of the common side effects of Tropicamet. Consult your doctor if this side effect does not go away within a few hours.
Are there any alternatives to Tropicamet?
Yes, other mydriatic medications, such as cyclopentolate and phenylephrine, can be used to temporarily enlarge the pupil.
How soon will Tropicamet take effect?
Tropicamet usually takes effect within 15 minutes after administration.
Can Tropicamet cause any long-term effects?
No, Tropicamet is intended for short-term use to temporarily enlarge the pupil and should not cause any long-term effects.
What should I do if I miss a dose of Tropicamet?
If you miss a dose of Tropicamet, take it as soon as possible. If it is almost time for the next dose, skip the missed dose and take the next dose. Do not take two doses of Tropicamet at the same time.
What should I do if I overdosed on Tropicamet?
If you overdose on Tropicamet, seek medical attention immediately. Symptoms of a Tropicamet overdose may include blurred vision, nausea, dizziness, confusion, or sleepiness.
Can Tropicamet be used while pregnant?
Tropicamet should not be used by pregnant women unless specifically instructed by a doctor.
Are there any drug interactions with Tropicamet?
Yes, some drugs can interact with Tropicamet. Tell your doctor about any medications you are taking to make sure they do not interact with Tropicamet. These drugs may include anticoagulants, beta blockers, CNS depressants, diuretics, or MAO inhibitors.
Can I take Tropicamet with alcohol?
No, it is not recommended to take Tropicamet with alcohol or other drugs. Doing so may increase the side effects of the medication.
How should I store Tropicamet?
Tropicamet should be stored at a temperature between 15 to 25°C (59 to 77°F). Do not freeze. Keep the medication out of reach of children.
Can Tropicamet cause eye irritation?
Yes, eye irritation is one of the common side effects of Tropicamet. If this side effect persists, contact your doctor.
Can Tropicamet be used for cycloplegia?
Yes, Tropicamet can be used for cycloplegia, which is the paralysis of the ciliary muscles responsible for pupil size.
Can Tropicamet cause dry eyes?
Yes, dry eyes is a common side effect of Tropicamet. If this side effect does not go away after a few hours, contact your doctor.
How long does Tropicamet last?
The effects of Tropicamet typically last between 3-5 hours.
Can Tropicamet cause changes in eye color?
Yes, temporary changes in eye color is one of the common side effects of Tropicamet. If this side effect persists, contact your doctor.
Can Tropicamet be absorbed through the skin?
No, Tropicamet is meant to be administered as eye drops and should not be absorbed through the skin.
Can Tropicamet cause glaucoma?
No, Tropicamet itself will not cause glaucoma. However, it may be used to diagnose glaucoma by measuring the intraocular pressure.
Can Tropicamet cause dizziness or confusion?
Yes, dizziness or confusion is one of the possible side effects of Tropicamet. If this side effect does not go away after a few hours, contact your doctor.
Can Tropicamet cause eye redness?
Yes, eye redness is one of the common side effects of Tropicamet. If this side effect persists, contact your doctor.
Can Tropicamet cause eye pain?
Yes, eye pain is one of the common side effects of Tropicamet. If this side effect persists, contact your doctor.
Can Tropicamet be used with other eye drops?
Yes, Tropicamet may be used in combination with other eye drops depending on the condition being treated. Always consult a doctor for specific instructions.
Can Tropicamet be used for refractive surgery?
Yes, Tropicamet may be used for refractive surgery such as photorefractive keratectomy (PRK).
Can Tropicamet be used for macular degeneration?
Yes, Tropicamet may be used to diagnose macular degeneration by measuring the intraocular pressure.
What should I do if Tropicamet causes an allergic reaction?
If an allergic reaction occurs after using Tropicamet, stop using the medication and seek medical attention immediately. Symptoms of an allergic reaction may include difficulty breathing, hives, swelling, itching, or rash.
Can Tropicamet be used for cataract surgery?
Yes, Tropicamet may be used to prepare the eye for cataract surgery.
Can Tropicamet cause increased pressure in the eye?
Yes, increased pressure in the eye is one of the possible side effects of Tropicamet. If this side effect persists, contact your doctor.
Can Tropicamet cause ringing in the ears?
No, ringing in the ears is not a common side effect of Tropicamet.
Can Tropicamet cause sleepiness?
Yes, sleepiness is one of the possible side effects of Tropicamet. If this side effect persists, contact your doctor.
Does Tropicamet interact with caffeine?
No, there are no known interactions between Tropicamet and caffeine.