Ice

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Ice

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Ice

What Type of Medicine is Ice (Levomenthol)?

Ice is a specialized pharmaceutical preparation classified as a topical counter-irritant and nasal decongestant, primarily used for the symptomatic relief of stuffiness in the upper respiratory tract. This medication is defined as a monopreparation, with its therapeutic effect driven solely by the action of its active ingredient, Levomenthol (L-Menthol). Levomenthol acts as a counter-irritant, providing relief from the perception of nasal obstruction in typical cold scenarios. Its core purpose is providing a rapid, perceptible sensation of cooling that promotes the perception of improved airflow, offering relief from discomfort.

Composition and Form of the Levomenthol Preparation

The active substance in this preparation is Levomenthol, an organic chemical compound that can be sourced either as a naturally occurring compound derived from the essential oils of various Mentha species or through controlled synthetic derivation. The formulation of Ice is specifically distinguished by its positioning as an inhalant solution suitable for adolescents and adults, typically marketed as an Over-The-Counter (OTC) product for convenience. The preparation is designed as a volatile preparation, supported by an oil-based or volatile solvent vehicle to facilitate the efficient release of vapors. This preparation is designed to act directly on the airways through inhalation.

What side effects are possible with Ice?

Possible Side Effects and Safety Information (Methylprednisolone)

The official safety profile for this medicine, a systemic glucocorticoid, is structured by regulatory authorities to reflect its broad effects on the body. Adverse reactions are classified by system-organ class and frequency, defining the official risk characteristics.


Adverse Reaction Scope

The primary adverse effects concern the Endocrine/Metabolic system, leading to common documented reactions such as weight gain, fluid retention, hyperglycemia (increased blood sugar), and the development of a Cushingoid state.

Common effects also extend to the Musculoskeletal system, including muscle weakness and osteoporosis with prolonged use, and Neuropsychiatric changes such as mood swings and insomnia.

Serious Adverse Reactions and Safety Constraints

Serious adverse reactions documented in regulatory sources include Gastrointestinal perforation and hemorrhage, an increased susceptibility to serious infections, and rare reports of cardiac arrest following rapid high-dose intravenous infusion. Severe neurologic events have been reported with unapproved epidural administration.

Safety constraints noted in labeling include the risk of growth suppression in children during prolonged treatment. The medicine is contraindicated in patients with systemic fungal infections and should not be used concurrently with live or live, attenuated vaccines when administered in immunosuppressive doses.

Time and Duration Patterns

The risk of Hypothalamic-Pituitary-Adrenal (HPA) axis suppression is officially linked to prolonged use of pharmacologic doses, and this effect may persist for months after discontinuation. Additionally, psychological symptoms and increased intracranial pressure (pseudotumor cerebri) are noted to potentially appear during or immediately after dose reduction or withdrawal.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information emphasizes that an overdose of amphetamine-type stimulants, such as Ice (methamphetamine), can lead to a severe medical emergency. This section details the manifestations and required actions based strictly on authoritative government regulatory documents.

Documented Overdose Presentations

Physiological System Documented Manifestations
Central Nervous System Extreme restlessness, confusion, toxic psychosis, tremor, seizures, coma.
Cardiovascular System Palpitation, cardiac arrhythmias, severe hypertension or hypotension, stroke, myocardial infarction, circulatory collapse.
Systemic Life-threatening hyperpyrexia (high fever) leading to severe damage, including rhabdomyolysis and renal failure.

Required Emergency Actions

Urgent medical attention is required immediately if any signs of severe toxicity (e.g., convulsions, profound hyperthermia, cardiac irregularity, or loss of consciousness) are present. Regulatory guidelines define the management as symptomatic and supportive, as there is no specific antidote for methamphetamine overdose. Treatment involves controlling agitation and seizures (e.g., with sedatives), managing severe hypertension, and employing measures to rapidly reduce body temperature to prevent systemic complications.

Therapeutic Uses of Ice

Quick Facts: Therapeutic Domains

  • May be used to assist in the management of: Severe allergies, asthma exacerbations, and certain inflammatory disorders.
  • May be administered for: Rheumatoid arthritis, lupus, and other conditions where reduction of inflammation is desired.

Ice (methylprednisolone) may be administered to assist in the management of a range of conditions where its anti-inflammatory properties may be beneficial. The therapeutic domains include endocrine, immunologic, inflammatory, hematologic, and respiratory disorders.

The medication may be used to provide relief for inflamed areas of the body and may also be included in the management of certain forms of arthritis, severe allergic conditions, and some skin disorders. For instance, Ice may be indicated in the short-term treatment of acute exacerbations of multiple sclerosis and may assist with conditions such as ulcerative colitis. The primary action is focused on reducing swelling and inflammation associated with these diseases. Information exists regarding the appropriate use and indications for this medication.

This medication is typically utilized to help suppress the inflammatory response and may be prescribed as adjunct therapy for certain conditions.

Regulatory References

  1. NIH MedlinePlus guidance

Eligibility and Restrictions for Use

Ice (methylprednisolone) eligibility is defined by official regulatory criteria, primarily related to concurrent medical conditions and specific populations. This medication is contraindicated and must not be used by patients with systemic fungal infections or a documented hypersensitivity to methylprednisolone or any of its components.

Eligibility and Restrictions

Population / Condition Eligibility Status (Regulatory Basis)
Systemic Fungal Infection Contraindicated (Must not use)
Known Hypersensitivity Contraindicated (Must not use)
Pediatric Patients Approved for specific conditions; chronic use requires monitoring for growth suppression (FDA)
Neonates/Premature Infants Formulations containing Benzyl Alcohol are contraindicated
Pregnancy/Lactation Use requires benefit to mother to outweigh potential risk to fetus/infant (Conditional Use)
Renal/Cardiac Insufficiency Use requires caution due to risk of fluid retention (Restricted Use)

Eligibility is typically established for adults and pediatric patients for approved uses. However, the label defines specific restrictions. For instance, Ice must be used with caution in patients with conditions like latent tuberculosis, diabetes mellitus, or a history of ocular herpes simplex, as these may be exacerbated or require specialized monitoring according to official regulatory documents.

What should I know about interactions with other medicines?

The official regulatory profile for Ice (Methylprednisolone) establishes several clinically significant interaction patterns with other medicines and substances. The primary basis for many drug–drug interactions is the involvement of the hepatic CYP3A4 enzyme in its clearance.

Drug–Drug Interactions

Co-administration with strong CYP3A4 inhibitors, such as certain antifungals (e.g., Ketoconazole) and macrolide antibacterials, results in increased methylprednisolone plasma concentration by decreasing its clearance. Conversely, co-administration with CYP3A4 inducers, including specific anticonvulsants (e.g., Phenytoin), leads to decreased methylprednisolone plasma concentration, which may impact its intended effect. The use of Oral Contraceptives containing estrogen also reduces methylprednisolone clearance, officially increasing drug exposure.

Pharmacodynamic and Risk Potentiation

Combinations involving potassium-depleting diuretics or Amphotericin B may potentiate the risk of hypokalemia (low blood potassium). Concomitant use with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) officially increases the risk of gastrointestinal ulceration and bleeding. Methylprednisolone may also modify the therapeutic effectiveness of anticoagulants and antidiabetic agents. Special consideration for increased interaction severity is required for patients with hepatic impairment, as the primary clearance pathway may be compromised.

Substance and Food Interactions

The interaction profile specifies that Grapefruit Juice acts as a CYP3A4 inhibitor and is officially documented to increase methylprednisolone exposure. No mandatory timing-based separation rules are detailed in the official label; regulatory management of these interactions relies on monitoring and potential dosage adjustment.

Mechanism of Action

Localized application of cryotherapy initiates a vasoconstrictive response within the superficial microvasculature. This reduction in arteriole and venule diameter is mediated by the stimulation of adrenergic receptors on vascular smooth muscle cells, which is triggered by cold-induced increases in local norepinephrine release. The resulting decrease in blood flow is a direct, temperature-dependent physiological consequence.

This localized temperature reduction also inhibits the activity of key metabolic enzymes and reduces the membrane permeability of afferent nerve fibers. This action elevates the threshold for action potential generation, thereby modulating the transmission of signals through the peripheral and central nervous systems. A concurrent effect involves a decrease in the rate of production and release of pro-inflammatory mediators like histamine and bradykinin.

Physiologically, the cumulative effect is a reduction in the rate of fluid filtration from capillaries into the interstitial space. This alteration in hydrostatic pressure dynamics constitutes a modulation of localized tissue changes.

Dosage and Administration Information

Standard administration protocols exist for this medication regarding its use and dosing. The drug is utilized for systemic use via the oral (tablet), intravenous (IV), and intramuscular (IM) routes, in addition to various forms of local injection. Injectable powder preparations, such as the sodium succinate form, require reconstitution with the specified diluent before being administered.

The initial dosage for systemic treatment is variable, ranging from 4 mg to 48 mg per day, which is then adjusted toward the lowest effective maintenance dose necessary. The medication is generally taken once daily or in divided doses. Specific protocols indicate that oral tablets are to be taken with food or milk to reduce the potential for gastrointestinal irritation. High-dose IV regimens, such as pulse therapy, must be administered slowly over a defined period of at least 30 minutes. A critical procedural condition is that following any prolonged course of therapy, discontinuation must be achieved by gradual tapering of the dose, not abrupt cessation. Furthermore, an increased dosage is required during periods of unusual stress, such as surgery or trauma. This procedural structure defines the standardized approach to using the medication.

Recent Clinical Evidence

Research evidence / Overview of Studies for Ice


Evidence for the Relief of Upper Respiratory Stuffiness

The use of Ice (Levomenthol) has been studied for the management of symptoms associated with stuffiness in the upper respiratory tract. Research exploring short-term symptom changes includes pharmacological studies recognized within the field of respiratory health. The evidence base contributes to the broader evidence landscape, which includes documentation detailing its traditional use for these purposes in certain jurisdictions, particularly for conditions associated with acute or disruptive episodes of nasal discomfort.

In these studies, research examined outcomes related to patient-reported outcomes describing perceived discomfort. Specifically, studies reported how symptoms evolved and findings indicate patterns related to the subjective experience, such as the perception of nasal obstruction and the perception of improved airflow.


Long-term Research and Follow-up Durations

The research primarily explored short-term symptom changes in conditions characterized by fluctuating or episodic manifestations. Follow-up durations were often limited, aligning with the temporary nature of the symptoms the preparation was studied for. There is limited information for long-term outcomes or how the observed short-term changes in perception may evolve over a longer period of time. The durability of the perceived effect is not fully established in the research currently available.


Key Research Limitations and Uncertainties

Research for Ice (Levomenthol) was evaluated in populations that include adolescents and adults, but data for certain groups remain insufficient. This means that results apply only to the populations studied, and subgroup findings are uncertain in areas where targeted research has not been described. Furthermore, specific limitations include its heavy reliance on subjective patient-reported outcomes, which may lead to variability. The comparative evidence is lacking in the provided regulatory summaries, and information on how it was evaluated in studies versus other treatments remains uncertain.

Frequently Asked Questions (FAQ)

Common questions about Ice (FAQ)


Q: How long does it typically take for Ice to start working?

The speed of perceived effect depends on the specific preparation. For the Levomenthol preparation, official research indicates it provides a rapid, perceptible sensation of cooling, which is associated with the perception of improved airflow. For the systemic glucocorticoid (Methylprednisolone), the onset of action for the intravenous form is described as occurring within approximately one hour.

Q: Will taking Ice make me feel immediately better?

The speed of perceived effect depends on the specific preparation. The Levomenthol form is described in studies as providing a rapid, perceptible cooling sensation. For the systemic glucocorticoid, the initiation of therapeutic effect for the injectable form is noted to occur within about one hour, suggesting the effect is not instantaneous.

Q: Is Ice considered safe for older adults or seniors?

Official regulatory information notes that older adults may process the systemic glucocorticoid (Methylprednisolone) more slowly. This potential change in clearance may increase the risk of experiencing certain side effects. Because of this, official documents describe that careful monitoring and potential dosage adjustments may be necessary.

Q: What did the main clinical studies about Ice actually show?

The main clinical studies for the Levomenthol preparation examined outcomes related to subjective patient experiences. Findings indicated patterns related to the perception of nasal obstruction and the perception of improved airflow.

Q: Are there any long-term research concerns about using Ice for many years?

Prolonged therapy with the systemic glucocorticoid is described in official documents as being associated with several long-term effects. These include the risk of Hypothalamic-Pituitary-Adrenal (HPA) axis suppression, muscle weakness, and conditions such as osteoporosis. The potential development of cataracts and glaucoma is also noted in official safety information.

Q: Will I experience withdrawal symptoms if I stop using Ice?

The official guidance states that following a prolonged course of therapy, discontinuation should be achieved by gradual tapering. Psychological symptoms and increased intracranial pressure have been noted to potentially appear during or immediately after dose reduction or complete withdrawal.

Q: What is the difference between Ice and a placebo in clinical trials?

The official regulatory research summary indicates that specific comparative evidence, including evaluation against a placebo, is described as limited or uncertain in the provided documents.

Q: How quickly does Ice leave the body after the last use?

For the systemic glucocorticoid, regulatory safety information indicates that the drug's potential to affect the body is noted to persist for a period. Specifically, the risk of Hypothalamic-Pituitary-Adrenal (HPA) axis suppression is noted to potentially persist for months after the discontinuation of prolonged therapy.

Q: What are the most commonly reported side effects of Ice?

The most commonly reported side effects officially documented for the systemic glucocorticoid include fluid retention, changes in glucose tolerance, and increased blood pressure. Behavioral and mood changes, alongside increased appetite and weight gain, are also frequently noted.

Q: Are there any side effects of Ice that I should be more concerned about?

The official regulatory profile describes certain serious adverse reactions. These include Gastrointestinal perforation and hemorrhage, and an increased susceptibility to serious infections. Rare reports of cardiac arrest have also been documented following rapid high-dose intravenous infusion.

Q: Can Ice affect my sleep schedule?

The official safety profile for the systemic glucocorticoid notes that insomnia (trouble with sleeping) is included among the commonly reported neuropsychiatric changes associated with the drug.

Q: Do I need to change my diet while I am taking Ice?

Regulatory information indicates that patients using the systemic glucocorticoid may require dietary modifications. This is because dietary salt restriction and potassium supplementation may be necessary due to the drug’s potential to cause fluid retention and changes in electrolyte levels.

Q: Is it normal to feel a mild headache when starting Ice?

Official regulatory documents for the systemic glucocorticoid include headache among the list of commonly reported side effects.

Q: I heard Ice interacts with blood thinners—is that true?

According to the official interaction profile, the systemic glucocorticoid may modify the therapeutic effectiveness of anticoagulants (often called blood thinners). This means the effect of the anticoagulant could be altered when taken together.

Q: Does Ice have a 'black box warning' mentioned in its official documents?

Regulatory documents contain a prominent warning related to the systemic glucocorticoid. This warning concerns serious neurologic events, some resulting in death, associated specifically with the unapproved epidural injection route of administration.

Q: Is Ice used for anything besides the main condition it treats?

Yes, the systemic glucocorticoid has regulatory indications for a wide range of conditions beyond its main application. It is approved for use in various allergic, dermatologic, endocrine, gastrointestinal, hematologic, neurologic, ophthalmic, and rheumatic disorders.

Q: Can I drive or operate machinery after taking Ice?

The systemic glucocorticoid is associated with side effects such as headache, dizziness, and confusion, which are noted to potentially affect a person's ability to safely drive or operate machinery. Official safety documents indicate that a person's ability to drive or operate machinery may be affected if these symptoms are experienced.

Q: Is it possible to be allergic to the ingredients in Ice?

Yes, the regulatory label states that the systemic glucocorticoid is contraindicated and must not be used in patients with a known hypersensitivity to the active substance or any of its components. Hypersensitivity is described as a reaction that requires the drug to be contraindicated (must not be used).

Q: Is Ice a steroid?

Yes, the drug (Methylprednisolone) is classified as a systemic glucocorticoid. Glucocorticoids are a type of corticosteroid hormone described in official documents.

Q: Are there any official reports of serious events related to Ice?

Official regulatory systems document and report serious adverse reactions collected via monitoring. These events include serious infections, gastrointestinal hemorrhage, and rare instances of cardiac arrest.

How should Ice be stored and disposed of?

The official labeling for Ice (Methylprednisolone) mandates specific storage conditions to ensure chemical stability.

Official Storage and Disposal Statements

  • Temperature Control: Store the product at controlled room temperature (20 C to 25 C / 68 F to 77 F). The label instructs to Do not freeze injectable suspension formulations.
  • Environmental Protection: The product must be protected from moisture and stored in the original container to avoid light exposure.
  • Stability/Handling: For reconstituted solutions (e.g., Methylprednisolone Sodium Succinate), the prepared product must be used within a specified period, such as 48 hours, when stored at controlled room temperature.
  • Child Safety: All formulations must be kept out of the sight and reach of children.
  • Disposal: Unused or expired medication must be disposed of in accordance with local, regional, and national regulations. This typically involves using a drug take-back program or following specific household trash disposal guidelines to prevent environmental release.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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