Sikander Hayat, Muhammad Ismail Chughtai, Tariq Mahmood Ansari, Ghulam Mustafa Kamal.
Comparative evaluation of some commercially available brands of pharmaceutical preparations for na, k and mg concentrations.
Pak J Pharm Sci Jan ;25(2):377-80.

A study was carried out to investigate the concentrations of macro-elements (Na+, K+ and Mg+2) in twelve commercially available pharmaceutical preparations used as sex stimulant, by Atomic Absorption Spectrophotometer. A wet digestion method was adopted to prepare the samples. The results indicated that sodium concentration was maximum (3702±29 ìg g-1) in LB and minimum (495±06 ìg g-1) in H-E-H. Potassium concentration was maximum (6337±13 ìg g-1) in NBA while minimum (150±06 ìg g-1) in ZGRA. Magnesium concentration was maximum in V-100 (9226±11 ìg g-1) and minimum in FGRA (1194±25 ìg g-1). The concentration of macro-elements in the imported herbal preparations was in the order of Mg>Na>K and in the local herbal preparations as follows: Mg>K>Na. Some of these herbal preparations contain high level of macro-elements than the recommended daily dietary allowances. The excessive use of such preparations may cause severe allergic reactions, kidney damage and pulmonary atherosclerosis.

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