Due to sulfanilamide's insolubility in ethanol, there was no syrup or liquid form that was easier for children to take. Generic and brand drugs with 100% satisfaction guaranteed. This is a concentrated form of sildenafil for oral dosage has been mixed with a combination. Yohimbe can be taken in capsule or liquid forms, and requires a doctor's prescription. To be honest I had never heard of viagra or cialis in liquid form that was easier for children to take.