NONPRESCRIPTION DRUGS
\nˌɒnpɹɪskɹˈɪpʃən dɹˈʌɡz], \nˌɒnpɹɪskɹˈɪpʃən dɹˈʌɡz], \n_ˌɒ_n_p_ɹ_ɪ_s_k_ɹ_ˈɪ_p_ʃ_ə_n d_ɹ_ˈʌ_ɡ_z]\
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Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.