Reply To: Pharm Home › Forums › Yeshiva / School / College / Education Issues › Pharm › Reply To: Pharm July 11, 2011 4:53 am at 4:53 am #785413 haifagirlParticipant Remember the “rule of 2.” If the dose is more than 2 pills or more than 2 teaspoons, you may have made a mistake in your calculations.