| High-performance liquid chromatography | HPLC |
| Maximum effect | Emax |
| Concentration required to relax the induced tone by 50% | EC50 |
| number of preparations/number of rats | n |
| Krebs-Ringer Bicarbonate Buffer | KRB |
| Hydroxyethyl piperazineethanesulfonic acid | HEPES |
| kraftbrühe | KB |
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