Page 1138 - Basic _ Clinical Pharmacology ( PDFDrive )
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1124     SECTION X  Special Topics


                 TABLE 63–2  Ingredients of known efficacy for selected over-the-counter (OTC) classes. (Continued)

                                Generic Name
                  OTC Category  (Brand Example)  Labeled Use   Warnings                 Considerations
                  Antidiarrheal                                Adverse effects include:
                  agents (cont.)                               fecal discoloration (black,
                                                               tarry), tongue discoloration
                                                               (darkening), and tinnitus (dose-
                                                               related and more likely when
                                                               coadministered with aspirin).
                                                               Loperamide
                                                               Avoid use in: children <12 years
                                                               of age; patients with bloody or
                                                               black stools.
                                                               Adverse effects include: abdom-
                                                               inal pain, nausea, constipation,
                                                               drowsiness, dizziness, and dry
                                                               mouth.
                  Antifungal    Butenafine       Relieves itching,   For external use only. Avoid   •  For treatment of athlete’s foot, apply
                  preparations   (Lotrimin Ultra)  burning, scaling,   contact with eyes, nose, mouth,   product to spaces between toes and
                  (topical)                      chafing, and   or other mucous membranes.   change shoes and socks daily.
                                Clotrimazole     discomfort asso-  Avoid use: in children <2 years
                                (Lotrimin Antifungal)  ciated with tinea   of age (clotrimazole, micon-
                                Miconazole       pedis (athlete’s   azole, tolnaftate) or children
                                (Desenex, Lotrimin AF)  foot), tinea cruris   <12 years of age (butenafine,
                                                 (jock itch), and   terbinafine).
                                Terbinafine      tinea corporis
                                (Lamisil AT)     (ringworm).   Adverse effects include:
                                                               erythema, irritation, itching, and
                                Tolnaftate (Tinactin)          burning.
                  Antifungal    Clotrimazole     Treatment of   For vaginal use only. Avoid use:   •  Topical vaginal antifungals should only
                  preparations   (Gyne-Lotrimin)  vaginal yeast   in children <12 years of age; if   be used for treatment of recurrent
                  (vaginal)                      (candidiasis)   patient has lower abdominal,   vulvovaginal candidiasis in healthy,
                                Miconazole       infections and   back, or shoulder pain, or fever,   nonpregnant women who were previously
                                (Monistat-1,     for the relief of   chills, nausea, vomiting, or foul-  diagnosed by a clinician.
                                Monistat-3,      external vulvar   smelling vaginal discharge; in
                                Monistat-7,      itching and irrita-  combination with tampons,   •  Therapy should be discontinued if symp-
                                Vagistat-3)      tion associated   douches, spermicides, or other   toms do not improve within 3 days or if
                                                                                        symptoms persist after 7 days of treatment.
                                Tioconazole      with vaginal   vaginal products.      •  Vaginal products (7-day therapy preferred)
                                (Monistat-1 1-Day,   yeast infections.  Adverse effects include: vaginal   can be used for treatment in pregnant
                                Vagistat-1)                    itching, burning, vaginal   women.
                                                               soreness, and swelling.  •  Products with similar brand names may
                                                                                        contain different antifungal products; read
                                                                                        labels and instructions for use carefully.
                                                                                       •  Condoms and diaphragms may be dam-
                                                                                        aged by the products and fail to prevent
                                                                                        pregnancy or sexually transmitted disease.
                  Antitussives  Dextromethorphan   Temporary relief   Avoid use: in patients taking a   •  Dextromethorphan is a nonopioid
                                (Delsym, Robitussin   of cough due to   monoamine oxidase inhibitor   congener of levorphanol without analgesic
                                Cough, Vicks 44)  minor throat and   (MAOI), or for 2 weeks after   or addictive properties. Health care providers
                                                 bronchial irrita-  discontinuation of an MAOI.  should be alert for problems of abuse or
                                                 tion with the                          misuse.
                                                 common cold or   Use with caution in patients   •  Often used with antihistamines, decon-
                                                 inhaled irritants.  with a chronic cough that   gestants, and expectorants in combination
                                                               occurs with smoking, asthma,
                                                               and emphysema and in patients   products.
                                                               with cough with production of   •  Notify provider if symptoms do not improve
                                                               mucus.                   in 7 days or are accompanied by fever, rash,
                                                                                        or persistent headache.
                                                               Adverse effects include:
                                                               confusion, excitement, irritability,
                                                               nervousness, and serotonin
                                                               syndrome (uncommon).

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