12. What serious adverse effect has been linked to the drug Accutane?
The serious adverse effect that has been linked to the drug Accutuane is depression and suicide. This drug is only used to treat severe acne and not common acne.
15. What is a herpes zoster infection and what drugs are used to treat it?
Herpes zoster infection or shingles occur from the reemergence of the same virus that first caused chickenpox in the patient. The virus remains dormant in the body until later in life, when stress or illness triggers it to emerge. The following drugs are used to treat this infection: acyclovir (Zovirax), famciclovir (Famvir), and valacyclovir (Valtrex).
17. What is unusual about the origin of the popular drug Botox?
The toxin in Botox is the same toxin produced by Clostridium Botulinum, the bacterium that causes food poisoning. The trade name Botox comes from the letters botulinum toxin.
2. Discuss the use of silver nitrate versus erythromycin to prevent newborns from developing eye infections due to gonorrhea.
When babies are born, most states require a topical anti-infective drug be applied to prevent possible infection or blindness due to gonorrhea. Silver nitrate is less expensive but has drawbacks like conjunctival irritation and swelling. This drug also is ineffective in preventing eye infections due to Chlamydia. Erythromycin is more expensive but will treat and prevent what silver nitrate cannot.
4. Name three categories of drugs that are used topically to treat allergy symptoms in the eyes.
The three categories that are used topically to treat allergy symptoms in the eyes are topical antihistamine drugs, mast cell stabilizer drugs, and decongestant drugs.
3. How do antihistamine drugs exert their therapeutic effect?
Antihistamine drugs exert their therapeutic effect by blocking histamine receptors in the nose and throat. By inhibiting the activity of histamine, they can reduce capillary fragility, which produces the erythema, or