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Zonisamide (AD 810), a sulfonamide anticonvulsant, is approved for use as an adjunctive treatment in adults with partial-onset seizures. It may inhibit a carbonic anhydrase although this is not one of the main mechanisms of action. Zonisamide may act by blocking repetitive firing of voltage-gated sodium channels results in a reduction of T-type calcium channel currents, or by binding allosterically to GABA receptors. This latter action may lower the uptake of the inhibitory neurotransmitter GABA while increasing the uptake of the excitatory neurotransmitter glutamate.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 50 mg | $40 | In Stock | |
| 100 mg | $59 | In Stock | |
| 200 mg | $79 | In Stock | |
| 500 mg | $134 | In Stock | |
| 1 mL x 10 mM (in DMSO) | $50 | In Stock |
| Description | Zonisamide (AD 810), a sulfonamide anticonvulsant, is approved for use as an adjunctive treatment in adults with partial-onset seizures. It may inhibit a carbonic anhydrase although this is not one of the main mechanisms of action. Zonisamide may act by blocking repetitive firing of voltage-gated sodium channels results in a reduction of T-type calcium channel currents, or by binding allosterically to GABA receptors. This latter action may lower the uptake of the inhibitory neurotransmitter GABA while increasing the uptake of the excitatory neurotransmitter glutamate. |
| Targets&IC50 | CA II (human):35.2 nM (Ki), CA V (human):20.6 nM (Ki) |
| In vitro | Zonisamide inhibits monoamine oxidase B activity in vitro with an IC50 of 25 μM. |
| In vivo | Zonisamide inhibits monoamine oxidase B activity in vitro with an IC50 of 25 μM. |
| Synonyms | CI 912, AD 810 |
| Molecular Weight | 212.23 |
| Formula | C8H8N2O3S |
| Cas No. | 68291-97-4 |
| Smiles | C(S(N)(=O)=O)C=1C=2C(ON1)=CC=CC2 |
| Relative Density. | 1.4306 g/cm3 (Estimated) |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 55 mg/mL (259.15 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 2 mg/mL (9.42 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||||||||||||
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DMSO
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