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Levallorphan is a drug of the morphinan family which is used as an opioid antidote or antagonist. It acts as a μ-opioid receptor weak partial agonist, and as a result, blocks the effects of stronger agents with greater intrinsic activity such as morphine or endogenous β-endorphin. It was formerly widely used in general anaesthesia, mainly to reverse the respiratory depression produced by the opioid analgesics and barbiturates which are used for induction of surgical anaesthesia, although it is now less common as the newer drug naloxone tends to be used instead. It was also used in combination with opioids to reduce their side effects, mainly in obstetrics, and when a very small dose of levallorphan is used alongside an opioid full agonist this can in fact produce greater analgesia than when the agonist is used by itself.


Lormetazepam is a drug which is a short to intermediate acting 3-hydroxy[1] benzodiazepine derivative. It possesses hypnotic, anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties.


Luliconazole is a member of the imidazole class of antifungal agents, with specific utility as a dermatological antimycotic drug.

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Lumefantrine is an antimalarial drug. It is only used in combination with artemether. The term "co-artemether" is sometimes used to describe this combination.

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Mandarin Oil

Mandarin oil is obtained from mandarin tree a member of the orange family. It is used in perfumes and flavours ingredients;aromatherapy oil.

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Marjoram Oil

Marjoram oil is obtained from Origanum marjorana. It is used in perfumes, flavours, aromatherapy oils, spa oils, cosmetic and medicinal products.

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Matairesinol is a plant lignan. It occurs with secoisolariciresinol in numerous foods such as oil seeds, whole grains, vegetables, and fruits. The plant lignans are precursors of the enterolignans. A number of plant lignans are metabolized to the enterolignans that can potentially reduce the risk of certain cancers and cardiovascular diseases.


Mecloqualone is an analogue of methaqualone which was first made in 1960 and marketed mainly in France and some other European countries. It has sedative, hypnotic and anxiolytic properties, and was used for the treatment of insomnia. It is faster acting but shorter lasting than methaqualone and so was used only as a sleeping pill, in contrast to methaqualone which was used as a general purpose anxiolytic as well. It was never as widely used as methaqualone and is no longer prescribed because of concerns about its potential for abuse and overdose.


Metaclazepam is a drug which is a benzodiazepine derivative. It is a relatively selective anxiolytic with less sedative or muscle relaxant properties than other benzodiazepines such as diazepam or bromazepam. It has an active metabolite N-desmethylmetaclazepam, which is the main metabolite of metaclazepam. There is no significant difference in metabolism between younger and older individuals.


Metheptazine is an opioid analgesic from the phenazepine family. It produces similar effects to other opioids, including analgesia, sedation, dizziness and nausea.

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