Mephedrone molecule

Mephedrone molecule

Mephedrone molecule

Mephedrone molecule

Molecular models of congener compounds (top to bottom): formaldehyde, methanol, acetaldehyde, isoamyl alcohol, and ethyl acetate. Congeners (along with ethanol) are produced in alcohol fermentation. They contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms.

Molecular models of congener compounds: formaldehyde, methanol, acetaldehyde, and ethyl acetate. Congeners (along with ethanol) are produced in alcohol fermentation. Congeners contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms. In the background is a liquor bottle and a glass.

Molecular models of congener compounds: formaldehyde, methanol, acetaldehyde, and ethyl acetate. Congeners (along with ethanol) are produced in alcohol fermentation. Congeners contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms. In the background is a liquor bottle and a glass.

Three dimensional model of the molecular structure of nicotine.

Illustration of immune cells inside a blood vessel: B cells (blue), T cells (red), macrophages (white), and dendritic cells (green).

Illustration of immune cells: B cells (blue), T cells (red), macrophages (white), and dendritic cells (green).

Illustration of a multidimensional grid showing the relationship between positive and negative space (positive and negative numbers) in mathematics.

Illustration of a multidimensional grid showing the relationship between positive and negative space (positive and negative numbers) in mathematics.

Conceptual image of a molecular surface.

Conceptual image of a molecular surface.

Computer generated molecular model of a hairpin ribozyme (a RNA enzyme, also known as a catalytic RNA), a small RNA molecule that can catalyze a chemical reaction. The hairpin ribozyme is one of four known natural catalytic RNA's that carry out sequence-specific cleavage of RNA. The model shows the atoms as spheres and the backbone structure as a long tube.

Molecular model of amitriptyline, C20H23N, a tricyclic antidepressant also used to prevent migraine headaches. It acts to block the reuptake noradrenaline (norepinephrine) and serotonin. Atoms shown are carbon (blue), hydrogen (clear), and nitrogen (purple).

Molecular model of ergotamine, an ergot-derived drug used to treat migraine headaches. Ergotamine acts to constrict blood vessels (vasoconstrictor) and has an effect of serotonin receptors in the brain. Shown are carbon (blue), nitrogen (violet), oxygen (red), and hydrogen (clear).

Molecular model of gabapentin (Neurontin), a drug approved for treating epileptic seizures and nerve pain associated with herpes infections. It is also used to treat multiple sclerosis and bipolar disorder, and to prevent migraine. Shown are carbon (blue), nitrogen (violet), and oxygen (red); hydrogen is not shown.

Molecular model of pregabalin (Lyrica), a gabapentin-derived drug approved for treating epileptic seizures, diabetic neuropathy (Kimmelstiel-Wilson disease), and herpetic neuralgia. It is also used for preventing migraine headaches and anxiety. Shown are carbon (blue), nitrogen (violet), oxygen (red), and hydrogen (clear).

Molecular model of rizatriptan (Maxalt), an antimigraine drug known as a triptan. Triptans are believed to provide migraine relief by binding to serotonin receptors in the brain, where they act to induce constriction of the blood vessels and reduce neurogenic inflammation. Shown are carbon (blue), nitrogen (violet), and hydrogen (clear).