Organic alkaloid
* Alkaloids also help the body to resist disease, strengthen tissues, and improve the nervous system.
* Alkaloids are a class of chemicals that includes many medically useful substances
  - group of toxic waste products
  - major class of natural products that have a physiological effect in other organisms
  - also present that have blood pressure lowering effects
* Alkaloids are among the most common active organic compounds found in plants
  - familiar and addictive drugs known
  - bases
  - basic - they form water soluble salts
  - bitter tasting nitrogenous compounds
  - bitter, complex, nitrogen containing compounds
  - chemical substances that contain nitrogen
  - colorless, complex, bitter organic bases, and they are essential to maintaining life
  - companies
* Alkaloids are derived from plants, and have powerful pharmacological effects
  - various amino acids
  - highly reactive substances with biological activity in low doses
  - natural basic chemical compounds which contain nitrogen atoms
  - nitrogen-containing compounds isolated from plants
* Alkaloids are organic compounds
* Alkaloids are present in all the parts of the plant
  - commonly consumed foods and herbs, as are a variety of enzyme inhibitors
  - usually derivatives of amino acids and most alkaloids have a very bitter taste
  - occur naturally in nature
  - often have a bitter taste and are insoluable in water
  - represent another class of secondary metabolites
  - sometimes present
* An alkaloid is an organic compound
* Many alkaloids are toxic to other organisms
  - can be from basic substances by acid-base extraction
* Most alkaloids are well-defined crystalline substances, which unite with acids to form salts
* Some alkaloids are poisonous, e.g. strychnine and coniine, and colchicine inhibits cell division.
* Some alkaloids have a bitter taste
  - Alkaloids' are chemical compounds that can be made naturally. They contain basic nitrogen atoms. The name comes from the word alkaline and was used to describe any alkaline containing nitrogen. Many alkaloids can be from basic substances by acid-base extraction. Many alkaloids are toxic to other organisms. Some alkaloids have a bitter taste
+ Taxane: Chemical compounds
  * Alkaloids are natural basic chemical compounds which contain nitrogen atoms. Compendium of Chemical Terminology, 2nd ed. Compiled by A.D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford 1997. The name comes from the word alkaline and was used to describe any alkaline containing nitrogen.

### organic alkaloid:

Atropine
* acts at the same site as acetylcholine.
* blocks the muscarinic receptors.
* increases the heart rate by blocking parasympathetic nervous system impulses
  - risk of heat stroke because it causes decreased sweating
  - size of the pupil of the eye
* is an alkaloid
  - antispasmodic
  - poison
  - white
* reacts badly with muscimol , the true secondary hallucinogen from muscaria.

Ergotamine
* are alkaloids
  - dialyzable
  - effective in the vast majority of migraine episodes
  - ineffective in the prophylaxis of migraine
  - similar to the brain chemical called serotonin
* produces constriction of both arteries and veins.

Pilocarpine
* can cause sweats and nausea and vomiting.
* is used in the treatment of glaucoma.
* remains an important element in pharmacology and physiology.

Pyrrolizidine alkaloid
* are poisonous compounds that can cause severe liver damage.
* obstruct the hepatic venous system and can lead to hepatonecrosis.