How often should adults take deworming medication, and what symptoms indicate the need for it?

Anthelmintics, also known as deworming agents, are medically termed “anti-intestinal helminthic drugs.” These medications eliminate or kill intestinal parasitic worms and primarily include mebendazole, albendazole, piperazine, levamisole, pyrantel pamoate, niclosamide, and praziquantel. Specific details are as follows:

In general, adults do not require scheduled, repeated dosing of anthelmintics. These drugs are typically administered only when symptoms suggestive of parasitic infection are present.

For the treatment of intestinal parasites, a single dose—obtained either from a pharmacy or hospital—is usually sufficient. If related symptoms resolve completely, there is no need for repeat dosing after a fixed interval.

Even among high-risk groups—such as individuals who frequently interact with animals or those at higher risk of intestinal parasitic infection—anthelmintic use remains symptom-driven; routine or periodic administration (e.g., at fixed intervals) is not recommended unless clinically indicated.

Patients with ascariasis (roundworm infection) commonly experience poor appetite and perianal pruritus. They often feel hungry yet remain unsatisfied despite eating large amounts of food. Additional symptoms may include low-grade fever, irritability, nocturnal bruxism (teeth grinding during sleep), malnutrition, anemia, growth retardation, weight loss, and pallor or sallow complexion. In rare, severe cases—particularly when complicated by concurrent conditions such as upper respiratory infection, indigestion, or fatigue—patients may suddenly develop convulsions or even coma.

Therefore, patients are advised to maintain good personal hygiene in daily life: wash hands thoroughly before meals, and minimize or avoid consumption of raw or cold foods—to effectively reduce the risk of intestinal parasitic infection.