Q61. | Phenoxymethyl penicillin is more stable to acids and is administered by |
Q63. | Oxyphenbutazone containing hetero cyclic ring is |
Q64. | Heterocyclic ring present in Nitrofurazone is |
Q65. | Mebendazole is a derivative of |
Q66. | The heterocyclic system present in Promethazine is |