Review Article
An Updated List of Neuromedicinal Plants of Pakistan, Their Uses, and Phytochemistry
Table 5
The different phytochemicals effective in various neurological diseases and their current clinical phase status.
| Sr # | Phytochemicals | Source | Family | Disease | Mechanism | Development stage | Trade Name | Reference |
| 1 | Cannabidiol | Cannabis sativa | Cannabaceae | Epilepsy | Modulation of intracellular calcium and neuronal inhibition | FDA approved, 2018 | Epidiolex as 5- 10 mg/kg/day | [189] |
| 2 | Cannabidol | Cannabis sativa L. | Cannabaceae | Chronic Neuropathic pain | CB1 and CB2 receptor activation | FDA approved, 2005 | Sativex Spray (CBD 25mg/ml + THC27mg/ml) | [190] |
| 3 | Capsaicin | Capsicum annum L. | Solanaceae | Postherpetic neuralgia | TRPV1 activator | FDA approved, 2010 | Qutenza as Patch (179mg capsacin) | [190] |
| 4 | Curcumin | Curcuma longa | Zingiberaceae | Dementia | Anti-amyloid, AChEI | phase II | | [191] |
| 5 | Galantamine | Galanthus nivalis | Amaryllidaceae | Alzheimer | AChEI, allosteric modulation of nicotinic ACh receptor | FDA approved, 2004 | Razadyne as 8-12 mg BD | [192] |
| 6 | Huperzine A | Huperzia serrata | Huperziaceae | Alzheimer | AChEI, inhibits NMDA and glutamate toxicity | approved in China | | [193] |
| 7 | Ibogaine | Tabernanthe iboga | Apocynaceae | Parkinson | Dopaminergic agonist, NMDA antagonism | preclinical | | [193] |
| 8 | Psychollatine | Psychotria umbellate | Rubiaceae | Parkinson | MAO inhibitor | preclinical | | [193] |
| 9 | Resveratrol | Vitis vinifera L. | Vitaceae | Alzheimer | Reduces Aβ formation and promote Aβ decomposition | phase II | | [194] |
| 10 | Scyllo-Inositol | Cornus florida L. | Cornaceae | Alzheimer | Breakdown of neurotoxic fibrils, allowing amyloid peptides to clear the body rather than form amyloid plaques | phase II | | [195] |
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FDA: food and drug administration; TRPV1: transient receptor potential vanilloid 1; CB1 and CB2: cannabinoid receptor type 1 & type 2; Ach: acetylcholine; AChEI: acetylcholinesterase inhibitor; CBD: cannabidiol; THC: tetrahydrocannabinol; BD: bis in die; NMDA: N-methyl-D-aspartate; MAO: monoamine oxidase; Aβ: amyloid beta.
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