You shouldn't take more than two products that address the same, related issues without first consulting an ayurvedic expert. Maharishi AyurVeda formulas are designed to take care of several aspects of the same condition, so taking more will not necessarily increase their effectiveness. As far as dosage (i.e. the number of tablets to take at a time), you can follow the recommendations on the bottle. According to Maharishi AyurVeda, the dosage needed to correct an imbalance depends on the strength of the patient and the severity of the imbalance. This is best evaluated by an expert trained in Maharishi Ayurveda.