Pyridostigmine Bromide 60 mg/5mL Solution
Past resolved recalls for this product (1)
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Cholinesterase Inhibitor class.
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🏭 Manufacturer & labeler
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🩺 Clinical
Pyridostigmine is used to treat myasthenia gravis. Pyridostigmine is in a class called cholinergic agents. It works by increasing the amount of certain natural substances in the body to improve nerve and muscle activity.
Read the full MedlinePlus article ↗- Think of it as a protective shield you put up before a threat arrives. Pyridostigmine temporarily occupies key spots on an enzyme in your body that soman would otherwise permanentl...
- What exactly is pyridostigmine supposed to do for me — does it actually stop soman from hurting me?
- Timing is everything with this medication. It needs to be started at least several hours before any anticipated exposure — not when an alarm goes off. If you take it immediately be...
- Does it matter when I take it? Can I just take it right before a threat?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Pyridostigmine Bromide — tap one for details:
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Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII 3K9958V90M
A liquid solvent derived from fermentation or chemical synthesis. In medicines, alcohol dissolves active ingredients, helps preserve the product, and improves how the body absorbs certain drugs.
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UNII H3R47K3TBD
FD&C Blue No. 1 is a synthetic blue dye approved for use in foods and medicines. It serves as a colorant to give the medication its distinctive appearance and help with product identification.
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UNII WZB9127XOA
A synthetic red dye used to color medications and make them easier to identify. It serves as a colorant in tablets, capsules, and liquid formulations.
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UNII PDC6A3C0OX
Glycerin is a clear, thick liquid derived from plant oils or fats. It acts as a humectant to retain moisture, a sweetener, and a solvent in medications.
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UNII 33X04XA5AT
Lactic acid is a naturally occurring organic acid derived from milk or plant sources. It lowers and maintains pH in formulations, helps preserve the product, and can enhance ingredient stability and absorption.
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UNII 4N14V5R27W
A natural flavoring derived from raspberry fruit that gives medicines a pleasant taste. It helps mask bitter or unpleasant flavors to make medications easier to swallow.
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UNII OJ245FE5EU
Sodium benzoate is a salt derived from benzoic acid, a preservative. It's added to medicines to prevent growth of bacteria, fungi, and other microorganisms that could spoil the product.
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UNII 506T60A25R
Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.
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UNII C151H8M554
A natural sugar derived from sugar cane or sugar beets. It's used as a sweetener, filler, and binder to improve taste, add bulk, and help hold tablet or capsule ingredients together.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
10 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $1.24 | $62.08 / 50 ml |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Pryidostigmine Bromide 60 mg/5mL 16571-0833-16 | Rising | 473 ml | $0.508 | AA | Availability likely | — |
| Pyridostigmine Bromide 60 mg/5mL 42192-0626-16 | Acella | 473 ml | $0.508 | AA | Availability likely | — |
| Pyridostigmine Bromide 60 mg/5mL 69238-1731-02 | Amneal | 473 ml | $0.508 | AA | Availability likely | — |
| Pyridostigmine 60 mg/5mL 70954-0148-10 | Novitium | 473 ml | $0.508 | AA | Availability likely | — |
| Pyridostigmine Bromide 60 mg/5mL 72205-0098-72 | Novadoz | 473 ml | $0.508 | AA | Availability likely | — |
| Mestinon 60 mg/5mL 00187-3012-20 | Bausch | 473 ml | — | AA | FDA listed | — |
| Pryidostigmine Bromide 60 mg/5mL 24689-0104-01 | Apnar | 473 ml | — | AA | FDA listed | — |
| Pyridostigmine Bromide 60 mg/5mLthis 66689-0406-10 | VistaPharm, | 10 cups | — | AA | FDA listed | — |
| pyridostigmine bromide 60 mg/5mL 68682-0307-05 | Oceanside | 473 ml | — | AA | FDA listed | — |
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⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
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📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 66689-0406-10 You're viewing this | 1 TRAY in 1 CASE (66689-406-10) / 10 CUP, UNIT-DOSE in 1 TRAY / 5 mL in 1 CUP, UNIT-DOSE (66689-406-01) | 2020-01-06 | Active |
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
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📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATION: Pyridostigmine Bromide Oral Solution, USP is useful in the treatment of myasthenia gravis.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION: Pyridostigmine Bromide Oral Solution is available in the following form: Solution: raspberry-flavored, containing 60 mg pyridostigmine bromide per 5 mL. This form permits accurate dosage adjustment for children and “brittle” myasthenic patients who require fractions of 60 mg doses. It is more easily swallowed, especially in the morning, by patients with bulbar involvement.
Dosage: The size and frequency of the dosage must be adjusted to the needs of the individual patient. Solution: The average dose is ten 5 mL doses daily, spaced to provide maximum relief when maximum strength is needed. In severe cases as many as twenty-five 5 mL doses a day may be required, while in mild cases one to six 5 mL doses a day may suffice.
NOTE: For information on a diagnostic test for myasthenia gravis, and for the evaluation and stabilization of therapy, please see product literature on Tensilon (edrophonium chloride).
⛔ Contraindications ▾
CONTRAINDICATIONS: Pyridostigmine Bromide Oral Solution is contraindicated in mechanical intestinal or urinary obstruction, and particular caution should be used in its administration to patients with bronchial asthma. Care should be observed in the use of atropine for counteracting side effects, as discussed below.
⚠️ Warnings ▾
WARNINGS: Although failure of patients to show clinical improvement may reflect underdosage, it can also be indicative of overdosage. As is true of all cholinergic drugs, overdosage of Pyridostigmine Bromide Oral Solution may result in cholinergic crisis, a state characterized by increasing muscle weakness which, through involvement of the muscles of respiration, may lead to death. Myasthenic crisis due to an increase in the severity of the disease is also accompanied by extreme muscle weakness, and thus may be difficult to distinguish from cholinergic crisis on a symptomatic basis.
Such differentiation is extremely important, since increases in doses of Pyridostigmine or other drugs of this class in the presence of cholinergic crisis or of a refractory or “insensitive” state could have grave consequences. Osserman and Genkins1 indicate that the differential diagnosis of the two types of crisis may require the use of Tensilon™ (edrophonium chloride) as well as clinical judgment. The treatment of the two conditions obviously differs radically.
Whereas the presence of myasthenic crisis suggests the need for more intensive anticholinesterase therapy, the diagnosis of cholinergic crisis, according to Osserman and Genkins1, calls for the prompt withdrawal of all drugs of this type. The immediate use of atropine in cholinergic crisis is also recommended. Atropine may also be used to abolish or obtund gastrointestinal side effects or other muscarinic reactions; but such use, by masking signs of overdosage, can lead to inadvertent induction of cholinergic crisis.
For detailed information on the management of patients with myasthenia gravis, the physician is referred to one of the excellent reviews such as those by Osserman and Genkins, 2 Grob 3 or Schwab. 4,5 Usage in Pregnancy: The safety of Pyridostigmine Bromide Oral Solution during pregnancy or lactation in humans has not been established. Therefore, use of Pyridostigmine Bromide Oral Solution in women who may become pregnant requires weighing the drug’s potential benefits against its possible hazards to mother and child.
🤒 Adverse Reactions ▾
ADVERSE REACTIONS: The side effects of Pyridostigmine Bromide Oral Solution are most commonly related to overdosage and generally are of two varieties, muscarinic and nicotinic. Among those in the former group are nausea, vomiting, diarrhea, abdominal cramps, increased peristalsis, increased salivation, increased bronchial secretions, miosis and diaphoresis. Nicotinic side effects are comprised chiefly of muscle cramps, fasciculation and weakness.
Muscarinic side effects can usually be counteracted by atropine, but for reasons shown in the preceding section the expedient is not without danger. As with any compound containing the bromide radical, a skin rash may be seen in an occasional patient. Such reactions usually subside promptly upon discontinuance of the medication.
To report SUSPECTED ADVERSE REACTIONS, contact VistaPharm, Inc., at 1-888-655-1505 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
🧒 Pediatric Use ▾
PEDIATRIC USE Pediatric Use: Safety and effectiveness in pediatric patients have not been established.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED: Pyridostigmine Bromide Oral Solution, USP is a raspberry-flavored liquid containing 60 mg of pyridostigmine bromide per 5 mL and 5% alcohol, and is available as NDC 66689-406-01: 5 mL Unit-Dose cups NDC 66689-406-10: Case containing 10 Unit-Dose cups each of 5 mL (66689-406-01), packaged in 1 tray of 10 Unit-Dose cups each. Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). [See USP Controlled Room Temperature].
📋 Description ▾
DESCRIPTION: Pyridostigmine Bromide Oral Solution, USP is an orally active cholinesterase inhibitor. Chemically, pyridostigmine bromide is 3-hydroxy-1-methylpyridinium bromide dimethylcarbamate. Its structural formula is: Pyridostigmine Bromide Oral Solution, USP contains 60 mg pyridostigmine bromide per 5 mL in a vehicle containing 5% alcohol, glycerin, lactic acid, sodium benzoate, sorbitol solution, sucrose, FD&C Red No.
40, FD&C Blue No. 1, raspberry flavor and water. Structure