Safely and effectively treating pinworms since 1986, Reese's Pinworm Medicine is an over-the-counter treatment option for the whole family (ages 2+). Reese’s Pinworm Medicine is a liquid formula dosed by weight. For easy dosage, weight guide and a measuring cup are included in every package. Shake well before use. This product can be taken any time of day, with or without meals. It may be taken alone or with milk or fruit juice. Use of a laxative is not necessary prior to, during or after medication. If signs of pinworms persist after treatment, consult a doctor.