Alkaloids are organic compounds that contain nitrogen and therefore they are considered weak bases. The name alkaloids name is derived from alkali – like compounds which mean bases.

They are considered as heterocyclic and aromatic amines.

Some examples of alkaloids are given below:

Reference: https://www.sciencedirect.com/topics/food-science/alkaloid

Other alkaloids examples are given below:
Reference: https://www.researchgate.net/figure/Structure-of-the-most-common-opium-alkaloids_fig1_319189995

The harmful – health effects of some alkaloids are given in the table below: These alkaloids are highly addictive.

Alkaloid	Health effect	Reference
Nicotine	Cancer, coronary artery and peripheral vascular disease, hypertension, peptic ulcer disease, and reproductive disorders	https://ascpt.onlinelibrary.wiley.com/doi/abs/10.1038/clpt.1988.107
Caffeine	heart disease, heart attack, fibrocystic breast disease, incontinence, insomnia and stomach upset	https://www.caffeineinformer.com/harmful-effects-of-caffeine
Atropine	dry mouth, blurred vision, sensitivity to light, lack of sweating, dizziness, nausea, loss of balance, hypersensitivity reactions (such as skin rash), and rapid heartbeat	https://www.rxlist.com/atropine-side-effects-drug-center.htm
Morphine	Constipation, vomiting, drowsiness, loss of appetite, rash, twitching, nausea, blurred vision, itching, dizziness, sleepiness, headache, poor coordination, confusion	https://www.rehabspot.com/opioids/morphine/effects-use/
Codeine	Drowsiness, slurred speech, short attention span, impaired judgment, dilated pupils, lack of coordination, apathetic behavior	https://www.addictioncenter.com/opiates/codeine/symptoms-signs/
Heroin	Bad teeth, inflammation of the gums, constipation, cold sweats, itching, weakening of the immune system, coma, respiratory (breathing) illnesses, muscular weakness, partial paralysis, reduced sexual capacity and long-term impotence in men, menstrual disturbance in women	https://www.drugfreeworld.org/drugfacts/heroin/long-term-effects.html

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