Palliative: Wound Care

A formulation can be compounded to contain the proper combination of active ingredients, in the most appropriate base, to treat a specific type of wound. We customize medications to meet each individual’s specific needs. For example, the choice of cream, ointment, or gel can be clinically significant. Each time a wound needs to be cleaned, there is the potential for disruption of new tissue growth. Gels, which are more water soluble than creams or ointments, may be preferable for wound use because a gel can be rinsed from the wound by irrigation. Ointments may contain polyethylene glycol (PEG), which can be absorbed from open wounds and damaged skin. If the wound is quite large and too much PEG is absorbed, it can lead to renal toxicity. Another useful dosage form is the "polyox bandage" - which can be puffed onto a wound and will adhere even if exudate is present. A polyox bandage can be compounded to contain the active ingredient(s) of your choice.

Decubitus Ulcers

Phenytoin has been used topically to speed the healing of decubitus ulcers, pressure sores, venous stasis and diabetic ulcers, traumatic wounds, skin autograft donor sites, and burns. Ketoprofen may be used to control inflammation and pain, lidocaine provides topical anesthesia, and pentoxifylline may improve microcirculation at the wound margins and promote healing of the injured area. Misoprostol, a prostaglandin analog, is often included in wound care formulations to promote healing. Debridement of necrotic eschar with 40% urea paste may also speed healing. Medications which improve capillary blood flow can be added to a compounded medication to enhance circulation at the wound margins and promote healing of the injured area.

Topical Phenytoin for Wound Healing

Phenytoin may promote wound healing by a number of mechanisms, including stimulation of fibroblast proliferation, facilitation of collagen deposition, glucocorticoid antagonism, and antibacterial activity. Rhodes et al compared the healing of stage II decubitus ulcers with topically applied phenytoin and two other standard topical treatment procedures in 47 patients in a long-term care setting. Ulcers were examined for the presence of healthy granulation tissue, reduction in surface dimensions, and time to healing. Topical phenytoin therapy resulted in a shorter time to complete healing and formation of granulation tissue when compared with DuoDerm dressings or triple antibiotic ointment applications. The mean time to healing in the phenytoin group was 35.3 +/- 14.3 days compared with 51.8 +/- 19.6 and 53.8 +/- 8.5 days for the DuoDerm and triple antibiotic ointment groups, respectively. Healthy granulation tissue in the phenytoin group appeared within 2 to 7 days in all subjects, compared to 6 to 21 days in the standard treatment groups. The phenytoin-treated group showed no detectable serum phenytoin concentrations.

Anstead et al. described a patient with a massive grade IV pressure ulcer that was unresponsive to conventional treatment, yet responded rapidly to treatment with topical phenytoin. Song and Cheng reported phenytoin improved wound breaking strength in normal and radiation-impaired wounds. The results of their study indicated that topical phenytoin accelerated normal and irradiation-impaired wound healing by increasing the number of wound macrophages and improving the macrophage function. Pendse et al evaluated the effectiveness of topical phenytoin in healing chronic skin ulcers in a controlled trial of 75 inpatients. At the end of the fourth week, 29 of 40 phenytoin-treated ulcers had healed completely versus 10 of 35 controls. They concluded: "topical phenytoin appears to be an effective, inexpensive, and widely available therapeutic agent in wound healing."

The effectiveness of topical phenytoin as a wound healing agent was compared with that of OpSite and a conventional topical antibiotic dressing (Soframycin) in a controlled study of 60 patients with partial-thickness skin autograft donor sites on the lower extremities. Mean pain scores were lower and mean time to complete healing (complete epithelialization) was best in the phenytoin-treated group (6.2 +/- 1.6 days). Topical phenytoin compared very favorably with, and in some aspects was superior to, occlusive dressings.

No study reported any significant adverse effects secondary to topical phenytoin therapy.