S2
11.25 mg/.5mL · Solution
- Available without prescription
- Active substance
- Racepinephrine Hydrochloride
- Made by
- Nephron Pharmaceuticals Corporation
- Source
- Official label
Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.
At a glance
Quoted from the official label · 2026-01-26
Bronchodilator
- Wheezing Tightness of chest Shortness of breath
Add 0.5 ml (contents of one vial) of solution to nebulizer.
Do not use more than 12 inhalations in 24 hours.
Full directions ↓- Sold without a prescription
- FDA enforcement reports list no ongoing recall, and none from the last two years, for this product code · checked 2026-10-02
Every line above is selected, not written, from the official label. Nothing is reworded. DailyMed
What it is for
For temporary relief of mild symptoms of intermittent asthma:
- Wheezing Tightness of chest Shortness of breath
From the official label · 2026-01-26 · DailyMed
Do not take it if
- Unless a doctor said
- you have asthma
- If you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug.
- If you do not know if your prescription drug contains a MAOI,
- ask a doctor or pharmacist before taking this product.
- If product is brown in color or cloudy If its color is pinkish or darker than slightly yellow or if it contains a precipitate.
Quoted from the official label, section “OTC — Do Not Use”.
How to take it
These directions are for this exact strength and form. Another one is different.
- The ingredient is used in an aqueous solution at a concentration equivalent to 1 percent epinephrine.
- Do not use more than directed For use in a hand-held rubber bulb nebulizer:
- Add 0.5 ml (contents of one vial) of solution to nebulizer.
- Adults and
- children 4 years of age and over:
- 1 to 3 inhalations not more often than every 3 hours.
- Do not use more than 12 inhalations in 24 hours.
- The use of this product by children should be supervised by an adult.
- Children under 4 years of age: ask a doctor.
Quoted from the official label, section “Dosage & Administration”.
Ask a doctor first if
Ever been hospitalized for asthma Heart disease High blood pressure Diabetes Thyroid disease Seizures Narrow angle glaucoma A psychiatric or emotional condition Trouble urinating due to an enlarged prostate gland
Quoted from the official label, section “OTC — Ask Doctor”.
Ask a pharmacist first if
- you are:
- Taking prescription drugs for asthma, obesity, weight control, depression, or psychiatric or emotional conditions. Taking any drug that contains phenylephrine, pseudoephedrine, ephedrine, or caffeine (such as for allergy, cough-cold, or pain).
Quoted from the official label, section “OTC — Ask Doctor/Pharmacist”.
Stop and get help if
- Your asthma is getting worse (See Asthma alert )
- You have difficulty sleeping
- You have a rapid heartbeat
- You have tremors, nervousness, or seizure
Quoted from the official label, section “OTC — Stop Use”.
Other warnings
- Warnings Asthma alert Because asthma may be life threatening, see a doctor
- if you:
- Are not better in 20 minutes Get worse Need more than 12 inhalations in 24 hours Use more than 9 inhalations in 24 hours for 3 or more days a week Have more than 2 asthma attacks in a week These may be signs that your asthma is getting worse.
- Do not use:
- Ask a doctor before use
- if you have:
- Ask a doctor or pharmacist before use
- if you are:
- Stop use and
- ask a doctor if:
- When using this product:
- Your blood pressure or heart rate may go up.
- This could increase your risk of heart attack or stroke, which may cause death.
- Your risk of heart attack or stroke increases
- if you:
- Have a history of high blood pressure or heart disease Take this product more frequently or take more than the recommended dose.
- Avoid foods or beverages that contain caffeine
- Avoid dietary supplements containing ingredients reported or claimed to have a stimulant effect.
- Keep out of reach of children.
- Your blood pressure or heart rate may go up.
- This could increase your risk of heart attack or stroke, which may cause death.
- Your risk of heart attack or stroke increases
- if you:
- Have a history of high blood pressure or heart disease Take this product more frequently or take more than the recommended dose.
- Avoid foods or beverages that contain caffeine
- Avoid dietary supplements containing ingredients reported or claimed to have a stimulant effect.
Quoted from the official label, section “Warnings”.
Pregnancy and breastfeeding
If pregnant or breast-feeding, ask a health professional before use.
Quoted from the official label, section “OTC — Pregnancy or Breast Feeding”.
Keep away from children
In case of overdose, get medical help or contact a Poison Control Center right away.
Quoted from the official label, section “OTC — Keep Out of Reach of Children”.
How to store it
- Protect from light.
- Avoid excessive heat.
- Protect from freezing.
- Store between 2°C and 25°C (36°F and 77°F).
- How Supplied:
- S 2 ® Racepinephrine Inhalation Solution, USP 2.25% is supplied in 0.5 ml sterile unit-of-use vials.
- NDC 0487-5901-99 30 vials, each vial in an individual foil pouch.
Quoted from the official label, section “Storage and Handling”.
What kind of medicine it is
Bronchodilator
Quoted from the official label, section “OTC — Purpose”.
Other ingredients
Relevant if you react to a dye, a preservative, lactose or gluten.
Ascorbic acid, citric acid, edetate disodium, water for injection.
Quoted from the official label, section “Inactive Ingredients”.
Questions about this product
1-800-443-4313 Monday through Friday, 8:00 a.m. to 5:00 p.m. (Eastern Standard Time).
Quoted from the official label, section “OTC — Questions”.
Ingredients people check for
Lactose, gluten, dyes, sugars and other ingredients that matter with an allergy, intolerance or diet — as this product’s FDA label lists them.
This label’s list of inactive ingredients names none of: lactose, wheat or gluten, colour dyes, sugars, sugar alcohols, alcohol (ethanol), aspartame (phenylalanine), gelatin, peanut oil, soy, parabens, sulfites, titanium dioxide.
Quoted from the FDA label. A label that does not name an ingredient is not a guarantee that the product is free of it, and formulations change. With an allergy, check the pack and ask a pharmacist.
Every version of this medicine (2)
The same active substance, strength and kind of form, from every company that sells it — with what each label lists.
Showing 2 of 2
Details
| Made by | Nephron Pharmaceuticals Corporation |
|---|---|
| Active substance | Racepinephrine Hydrochloride |
| Strength | 11.25 mg/.5mL |
| Form | Solution |
| Route | Respiratory (inhalation) |
| Packs | 30 POUCH in 1 CARTON / 1 VIAL, SINGLE-USE in 1 POUCH / .5 mL in 1 VIAL, SINGLE-USE |
| NDC | 0487-5901 |
Source: NDC Directory · 2026-09-13 · not reviewed by a clinician
Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).
Same active substance
These contain the same substance. That does not mean one can replace another — ask a pharmacist.