Parethoxycaine (Intracaine) is an ester series local anesthetic agent. It has been used by topical application mainly for mouth and throat.

Tiletamine is a non-competitive N-methyl-d-aspartate (NMDA) receptor antagonist chemically related to ketamine and phencyclidine. A common veterinary anesthetic drug, tiletamine is currently a Schedule III controlled substance in USA. This compound exerts sedative effects in humans and animals, also having an abuse potential, toxicity and dissociative hallucinogenic properties clinically. In combination with benzodiazepine, zolazepam it is used as veterinary drug, called as telazol. Telazol is a nonnarcotic, nonbarbiturate, injectable anesthetic agent, which is indicated in cats for restraint or for anesthesia combined with muscle relaxation and in dogs for restraint and minor procedures of short duration (30 min) requiring mild to moderate analgesia. Tiletamine exerts sedative effects in humans and animals, also having an abuse potential, toxicity and dissociative hallucinogenic properties clinically.

Butamben is a local anesthetic. It is the ester of 4-aminobenzoic acid and butanol. It is one of three components in the topical anesthetic Cetacaine. The onset of Cetacaine-produced anesthesia is rapid (approximately 30 seconds) and the duration of anesthesia is typically 30-60 minutes, when used as directed. This effect is due to the rapid onset, but short duration of action of Benzocaine coupled with the slow onset, but extended duration of Tetracaine HCI and bridged by the intermediate action of Butamben.

Butanilicaine (Hostacain) is a local anesthetic. It uses may associate with a risk of allergy. Butanilicaine has a vasodilator effect.

Butanilicaine (Hostacain) is a local anesthetic. It uses may associate with a risk of allergy. Butanilicaine has a vasodilator effect.

Meprylcaine (also known as Epirocaine and Oracaine) is a local anesthetic with stimulant properties that is structurally related to dimethocaine. Meprylcaine has a relatively potent inhibitory action on the monoamine transporter and inhibits the reuptake of dopamine, norepinephrine and serotonin. Oracaine is commonly used as the hydrochloride salt and is compatible with the known vasoconstrictors. It has a slightly more rapid onset than procaine with a slight increase in potency. The earliest symptoms of a toxic overdose are stimulation to the central nervous system, thus following the same symptoms as procaine. Not more than 400 mg. (20 ml. of a 2 per cent solution) should be used at any one time for the ambulatory patient. Oracaine, like metycaine, may be used for patients sensitive to the para-aminobenzoic acid derivatives. Oracaine hydrochloride is used at present mainly by the dental profession and in dermatologic surgery.

Biphenamine is a local anesthetic with antibacterial and antifungal properties. It has been used in the treatment of seborrheic scalp disorders.

EUPROCIN, a cupreine derivative, is a local anesthetic.

BUTETHAMINE, an ester of the para-aminobenzoic acid, is a local anesthetic formerly used in dentistry. It has diminished toxicity and increased the speed of action as compared with procaine.

Menthyl lactate is derived from menthol, a compound that comes from peppermint oil, or is made synthetically. Menthol has a natural cooling effect, which makes it useful as a topical analgesic to treat skin irritation, pain, itching or sunburn. Despite its cooling benefits, menthol can be a skin irritant. Like menthol, menthyl lactate is cooling, but it causes less skin irritation than menthol. Menthyl lactate also has a refreshing, minty taste. For this reason, some manufacturers use it as a flavoring ingredient. The compound is recommended for use as a flavor in concentrations of 0.005% to 0.2% and in cosmetic and other external products in concentrations ranging from 0.2% to 2.0%. Menthyl lactate is a known compound available e.g. from Haarmann & Reimer GmbH (Germany) under the name FRESCOLAT, Type ML.